CN116425582A - Fertilizing method for saline-alkali soil cotton combined fertilizer and cotton - Google Patents
Fertilizing method for saline-alkali soil cotton combined fertilizer and cotton Download PDFInfo
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- CN116425582A CN116425582A CN202310308691.0A CN202310308691A CN116425582A CN 116425582 A CN116425582 A CN 116425582A CN 202310308691 A CN202310308691 A CN 202310308691A CN 116425582 A CN116425582 A CN 116425582A
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- UBLOJEHIINPTTG-UHFFFAOYSA-J disodium;zinc;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Zn+2].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UBLOJEHIINPTTG-UHFFFAOYSA-J 0.000 description 1
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- 235000003891 ferrous sulphate Nutrition 0.000 description 1
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- 239000002509 fulvic acid Substances 0.000 description 1
- 229940095100 fulvic acid Drugs 0.000 description 1
- IXORZMNAPKEEDV-UHFFFAOYSA-N gibberellic acid GA3 Natural products OC(=O)C1C2(C3)CC(=C)C3(O)CCC2C2(C=CC3O)C1C3(C)C(=O)O2 IXORZMNAPKEEDV-UHFFFAOYSA-N 0.000 description 1
- 239000003448 gibberellin Substances 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000015784 hyperosmotic salinity response Effects 0.000 description 1
- SEOVTRFCIGRIMH-UHFFFAOYSA-N indole-3-acetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CNC2=C1 SEOVTRFCIGRIMH-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 229960005337 lysine hydrochloride Drugs 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 239000005648 plant growth regulator Substances 0.000 description 1
- 108010064470 polyaspartate Proteins 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000026267 regulation of growth Effects 0.000 description 1
- 230000002786 root growth Effects 0.000 description 1
- 230000007226 seed germination Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002688 soil aggregate Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- LEZAYTDLNNEFJT-UHFFFAOYSA-N tetracosasodium octaborate tetrahydrate Chemical compound O.O.O.O.[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] LEZAYTDLNNEFJT-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/50—Surfactants; Emulsifiers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Plant Pathology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a fertilizing method for saline-alkali soil cotton combined fertilizer and cotton. The combined fertilizer comprises a first composition, a second composition and a third composition, wherein the first composition comprises water, nitrogen, urea phosphate and/or monoammonium phosphate, potassium fulvate, potassium dihydrogen phosphate and/or potassium sulfate, a synergistic auxiliary agent and saline-alkali tolerant bacteria, the second composition comprises a component A of a water-soluble fertilizer containing nitrogen, phosphorus and potassium and a component B consisting of different L-amino acids, and the third composition comprises a plant-source amino acid polypeptide mother solution, an animal-source amino acid polypeptide mother solution, active compound amino acids, microelement raw materials, biological stimulation hormone and an emulsifying dispersant. Each composition of the combined fertilizer has different action mechanisms and effects on the growth of cotton, and three compositions are used together in the whole growth stage of cotton, so that not only the stress resistance of the cotton to salt and alkali and the like is improved, but also the emergence, nutrition and reproductive growth of the cotton can be promoted, the shedding of bolls of the cotton is prevented, and the yield of the cotton is further improved.
Description
Technical Field
The invention belongs to the technical field of fertilizers, and particularly relates to a fertilizing method for saline-alkali soil cotton combined fertilizers and cotton.
Background
The saline-alkali soil is the sum of saline-alkali soil and alkaline earth, has wide distribution area, and the distribution area in the world reaches about 9.55 hundred million hm 2 Accounting for about 10% of the global land area. Xinjiang is the region with the most saline-alkali soil distribution types, the most distribution areas and the most serious salt accumulation. With the expansion of the agricultural land area, the saline-alkali soil area is increased, part of the agricultural land is also changed into light saline soil, and the saline-alkali invasion situation is increased. The salinization of the soil in the Xinjiang irrigated area reaches 37.72%, which seriously hinders the sustainable development of the agriculture of Xinjiang oasis.
Cotton has strong salt tolerance, is recognized as pioneer crop for developing saline-alkali soil, cotton is an important economic crop in China, the planting area accounts for about 15% of the world, and the yield accounts for about 25% of the world. The cotton planted in the Xinjiang saline-alkali soil mainly faces two problems at present, namely, the seedling stage of the Xinjiang cotton is severely stressed by saline-alkali and low temperature, the seedling is easy to become dead seedlings, the recovery is slow, the yield and planting benefit are affected, and the cotton boll stage of the Xinjiang cotton is affected by abiotic adverse environmental stress such as air temperature, precipitation and the like, so that the shedding rate of the cotton boll is high, and some cotton boll is even 80%. Currently, plant growth regulators such as gibberellin and auxin are mainly applied in the bud stage, and serious losses are easily caused by improper use.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, one aim of the invention is to provide a fertilizing method for saline-alkali soil cotton combined fertilizer and cotton. The saline-alkali soil cotton combined fertilizer comprises three different compositions, each composition has different action mechanisms and effects on the growth of cotton, and the three compositions are used together in the whole growth and development stage of cotton, so that not only is the stress resistance of cotton drought resistance, salt and alkali resistance and the like improved, but also the seedling emergence, nutrition and reproductive growth of cotton can be promoted, the shedding of cotton bolls is prevented, and further the yield of cotton is improved.
In one aspect of the invention, the invention provides a combined fertilizer for saline-alkali soil cotton. According to an embodiment of the invention, the combined fertilizer for saline-alkali soil cotton comprises:
a first composition, the first composition comprising: 50 to 70 parts by weight of water, 3 to 10 parts by weight of N, 3 to 10 parts by weight of urea phosphate and/or monoammonium phosphate, 3 to 10 parts by weight of potassium fulvate, 5 to 10 parts by weight of monopotassium phosphate, 4 to 10 parts by weight of potassium chloride and/or potassium sulfate, 0.2 to 2 parts by weight of synergistic auxiliary agent and 0.5 to 2 parts by weight of saline-alkali tolerant bacteria;
A second composition, the second composition comprising:
a component A, wherein the component A comprises a water-soluble fertilizer containing nitrogen, phosphorus and potassium;
a component B comprising an L-amino acid, the L-amino acid further comprising: 3-5 parts of glycine, 3-5 parts of alanine, 8-15 parts of leucine, 5-10 parts of histidine, 3-5 parts of phenylalanine, 3-8 parts of aspartic acid, 7-15 parts of glutamic acid, 7-15 parts of proline, 6-15 parts of lysine, 3-10 parts of arginine, 5-15 parts of cysteine and 5-8 parts of other amino acids;
a third composition, the third composition comprising: 20-40 parts by weight of plant-derived amino acid polypeptide mother liquor, 20-40 parts by weight of animal-derived amino acid polypeptide mother liquor, 10-30 parts by weight of active compound amino acid, 5-20 parts by weight of trace element raw materials, 5-15 parts by weight of biological stimulation hormone and 2-10 parts by weight of emulsifying dispersant.
According to the composite fertilizer for the saline-alkali soil cotton, the first composition prepared by taking N, urea phosphate and/or monoammonium phosphate, potassium fulvate, monopotassium phosphate, potassium chloride and/or potassium sulfate, synergistic auxiliary agents, saline-alkali tolerant bacteria and the like as raw materials can improve the nutrient concentration of the product to a greater extent, reduce the element content except essential nutrient elements, and contain no sodium ions, so that the accumulation of soil sodium elements caused by long-term fertilization is avoided, the aggravation of salinization of the soil is avoided, meanwhile, the urea phosphate and/or monoammonium phosphate can enable the aqueous solution of the fertilizer to have a lower pH value, salt formation in a drip irrigation zone can be effectively reduced in the application process, the blockage of a dropper pipeline is prevented, the alkalinity of the soil can be obviously improved, the low Wen Baomiao rate of cotton can be improved by adding the synergistic auxiliary agents, the stress resistance in the bud period is promoted, the rhizosphere environment is improved, the saline-alkali tolerant activity of the cotton can be improved, the stress resistance of the cotton is improved, and the diseases and insect pests of the cotton can be effectively inhibited and prevented, the disease and insect pests of the cotton can be effectively prevented, the problems of the cotton are solved, such as the soil high-alkali activity, the plant growth and the disease and pest resistance can be effectively inhibited, the seedling growth and the seedling growth rate of the cotton can be reduced in the seedling growth stage of the soil is guaranteed, and the seedling growth is guaranteed. In yet another aspect, the second composition comprising the component A and the component B is selected, wherein the component A comprises a water-soluble fertilizer containing nitrogen, phosphorus and potassium, the component A can provide necessary nutrient elements for the whole growth period of cotton, coordinate the growth vigor of crops, enable the nutrient growth to reasonably transit to reproductive growth, and coordinate and further comprise the component B of different types of L-amino acid, can exert the effects of regulating and controlling the growth and improving the stress resistance, wherein the proline can improve the stress resistance of the cotton, the histidine promotes the cell division, regulates and controls the endogenous hormone level, the glycine and the glutamic acid promote the synthesis of chlorophyll, the lysine and the glutamic acid improve the cold resistance of the crops, thereby promoting the rooting and the nutrient growth of the cotton, improving the drought resistance, the salt resistance and alkali resistance of the cotton, coordinating the nutrient growth and the reproductive growth and improving the yield of the cotton, so that the second composition can provide necessary nitrogen, phosphorus and potassium elements and the nutrients for the cotton growth in the cotton bud period to the flower bud period, and the added proline, histidine, cysteine and the like can improve the stress resistance, the oxidation resistance, the air pore and promote the cell division of the cotton, thereby improving the pollen vigor and the germination and the bud. On the other hand, the third composition contains plant-derived amino acid polypeptide mother liquor, animal-derived amino acid polypeptide mother liquor and active compound amino acid, and simultaneously trace element raw materials and biological stimulation hormone are added, so that the compatibility of the components is good, the components are easy to be absorbed and utilized by crops, and synergistic effect can be generated, and the amino acid water-soluble fertilizer has the comprehensive effects of promoting the growth of crops, improving the stress resistance of the crops, improving the quality and the yield and improving the quality of the crops, so that the third composition can promote the growth of the crops, improve the stress resistance of the crops, promote the transformation of nutritional growth to reproductive growth, promote the transfer of photosynthetic products to the cotton bolls, further improve the weight of single bolls and further improve the cotton yield. Therefore, the combined fertilizer comprises three different compositions, each composition has different action mechanisms and effects on the growth of cotton, and the three compositions are used together in the whole growth and development stage of cotton, so that not only are the stress resistance of cotton such as drought resistance, salt and alkali resistance and the like improved, but also the emergence, nutrition and reproductive growth of cotton can be promoted, the falling off of cotton bolls is prevented, and the yield of cotton is further improved.
In addition, the saline-alkali soil cotton combined fertilizer according to the embodiment of the invention can also have the following technical characteristics:
in some embodiments of the invention, in the first composition, the builder comprises at least one of sodium salicylate, nicotinamide, gamma-aminobutyric acid, glutamic acid, glycine, and alpha tocopherol. Therefore, the low Wen Baomiao rate of cotton can be improved, the stress resistance in the bud period is promoted, and the rhizosphere environment is improved.
In some embodiments of the present invention, the co-agent comprises 15-45 parts by weight sodium salicylate, 5-15 parts by weight nicotinamide, 5-10 parts by weight gamma-aminobutyric acid, 5-15 parts by weight glutamic acid, 5-15 parts by weight glycine, and 10-30 parts by weight alpha-tocopherol, based on the total mass of the co-agent. Therefore, the low Wen Baomiao rate of cotton can be improved, the stress resistance in the bud period is promoted, and the rhizosphere environment is improved.
In some embodiments of the invention, in the first composition, the saline-alkali tolerant bacteria include at least one of trichoderma harzianum, bacillus thuringiensis, bacillus subtilis, yeast, and bacillus megaterium. Therefore, the salt and alkali resistance of the cotton can be improved, the stress resistance of the cotton can be improved, and the plant diseases and insect pests of the cotton can be effectively inhibited and prevented.
In some embodiments of the invention, in the second composition, the mass ratio of nitrogen, phosphorus and potassium in the component a is (7 to 10): (10-30): (20-35). Therefore, enough nutrient components can be provided for plant growth, and the cotton yield is improved.
In some embodiments of the invention, the nitrogen source in the water-soluble fertilizer comprising nitrogen, phosphorus and potassium comprises at least one of urea, ammonium chloride and ammonium nitrate.
In some embodiments of the invention, the phosphorus source in the water-soluble fertilizer containing nitrogen, phosphorus and potassium comprises at least one of urea phosphate, monoammonium phosphate and monopotassium phosphate.
In some embodiments of the invention, the source of potassium in the water-soluble fertilizer comprising nitrogen, phosphorus and potassium comprises at least one of potassium nitrate and potassium chloride.
In some embodiments of the invention, in the second composition, the mass ratio of the component a to the component B is (100 to 500): 1.
in some embodiments of the invention, in the third composition, the plant-derived amino acid polypeptide stock solution comprises an L-amino acid, a plant-derived small peptide, and a plant-derived polypeptide. Thus, the growth of crops can be promoted, and the stress resistance of crops can be improved.
In some embodiments of the invention, the animal-derived amino acid polypeptide stock solution includes an L-amino acid, an animal-derived small peptide, and an animal-derived polypeptide. Thus, the growth of crops can be promoted, and the stress resistance of crops can be improved.
In some embodiments of the invention, the active compound amino acid comprises a plurality of L-amino acids. Thus, the growth of crops can be promoted, and the stress resistance of crops can be improved.
In yet another aspect, the invention provides a method of fertilizing cotton. According to an embodiment of the invention, the method comprises: in the cotton seedling stage, the first composition of the combined fertilizer is dripped or flushed with water; the second composition of the combined fertilizer is dripped or irrigated with water in the bud period to the boll period of the cotton; and in the cotton boll period, the third composition of the combined fertilizer is sprayed on the leaf surface.
In the seedling stage of cotton, the first composition of the combined fertilizer is sprayed or irrigated along with water, and the first composition has the advantages of high activity on saline-alkali soil, effective inhibition and prevention of plant diseases and insect pests, supply and growth promotion effects on cotton and the like, so that the problem of low seedling emergence rate of cotton caused by low-temperature freeze injury, adversity stress and other reasons in the seedling stage is solved, and meanwhile, the first composition can improve the saline-alkali soil, improve the rhizosphere environment, induce root system to secrete organic acid, improve the cotton resistance and further improve the cotton seedling emergence rate; the second composition of the combined fertilizer is dripped or flushed with water in the bud period to the boll period of the cotton, the second composition can provide necessary nitrogen, phosphorus and potassium elements and nutrients for the growth of the cotton, and meanwhile, the added proline, histidine, cysteine and the like can improve the stress resistance and oxidation resistance of the cotton, regulate air holes and promote cell division, so that the pollen activity and germination are improved, and the flowering and bud emergence of the cotton are promoted; in the cotton boll period, the third composition of the combined fertilizer is sprayed on leaf surfaces, and is rich in plant source amino acid polypeptide mother liquor, animal source amino acid polypeptide mother liquor and active compound amino acid, and trace element raw materials and biological stimulation hormone are added, so that the compatibility of the components is good, the components are easy to be absorbed and utilized by crops, and synergistic effect can be generated between the components, and the third composition has the effects of promoting the growth of crops, improving the stress resistance of crops, promoting the transformation of nutritional growth to reproductive growth, promoting the transfer of photosynthetic products to bolls, and further improving the weight of single bolls and the cotton yield. Therefore, the fertilizing method is adopted, namely, the relationship between the vegetative growth and reproductive growth of cotton is balanced by regulating and controlling the reasonable and efficient nutrition supply of plants, the capability of the cotton plants for resisting adversity stress such as low temperature, drought, salt and alkali is fundamentally enhanced, the emergence rate of cotton can be improved, and bolls are prevented from falling off, so that the yield and quality of cotton are improved.
In addition, the cotton fertilizing method according to the above embodiment of the present invention may further have the following technical characteristics:
in some embodiments of the invention, the first composition is applied in an amount of 2.5 to 5 kg/mu at a time; the application amount of the second composition is 2 to 8 kg/mu at a time; the application amount of the third composition is 100-300 ml/mu at a time. Thereby improving the emergence rate of cotton and preventing cotton bolls and bolls from falling off.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
The following detailed description of the embodiments of the invention is intended to be illustrative of the invention and is not to be taken as limiting the invention.
In one aspect of the invention, the invention provides a combined fertilizer for saline-alkali soil cotton. According to an embodiment of the invention, the combined fertilizer for saline-alkali soil cotton comprises a first composition, a second composition and a third composition.
According to an embodiment of the present invention, the first composition comprises: 50 to 70 parts by weight of water, 3 to 10 parts by weight of N, 3 to 10 parts by weight of urea phosphate and/or monoammonium phosphate, 3 to 10 parts by weight of potassium fulvate, 5 to 10 parts by weight of monopotassium phosphate, 4 to 10 parts by weight of potassium chloride and/or potassium sulfate, 0.2 to 2 parts by weight of synergistic auxiliary agent and 0.5 to 2 parts by weight of saline-alkali tolerant bacteria. Preferably, the first composition comprises: 55-70 parts of water, 3-10 parts of N, 3-10 parts of urea phosphate and/or monoammonium phosphate, 5-10 parts of potassium fulvate, 5-10 parts of monopotassium phosphate, 4-5 parts of potassium chloride and/or potassium sulfate, 1-2 parts of synergistic auxiliary agent and 1-2 parts of saline-alkali tolerant bacteria. More preferably, the first composition comprises: 60-70 parts of water, 3-10 parts of N, 5-10 parts of urea phosphate and/or monoammonium phosphate, 5-10 parts of potassium fulvate, 5-10 parts of monopotassium phosphate, 4-5 parts of potassium chloride and/or potassium sulfate, 1-2 parts of synergistic auxiliary agent and 1-2 parts of saline-alkali tolerant bacteria.
The inventor finds that the first composition prepared by taking N, urea phosphate and/or monoammonium phosphate, potassium fulvate, monopotassium phosphate, potassium chloride and/or potassium sulfate, a synergistic auxiliary agent, saline-alkali tolerant bacteria and the like as raw materials can improve the nutrient concentration of a product to a greater extent, reduce the element content except essential nutrient elements, and the product does not contain sodium ions, so that the accumulation of sodium elements in soil caused by long-term fertilization is avoided, the soil salinization is prevented from being aggravated, meanwhile, urea phosphate and/or monoammonium phosphate can enable the aqueous solution of the fertilizer to have a lower pH value, the salt formation in a drip irrigation belt can be effectively reduced in the application process, the blockage of a dropper pipeline is prevented, the alkalinity of soil can be obviously improved, the low Wen Baomiao rate of cotton can be improved by adding the synergistic auxiliary agent, the stress resistance in the bud period is improved, the rhizosphere environment is improved, the saline-alkali tolerant bacteria tolerant agent can be improved, the saline-alkali tolerant activity of cotton is improved, the stress resistance of cotton is improved, and the diseases and insect pests of cotton can be effectively inhibited and prevented. Therefore, the first composition has the advantages of high activity on saline-alkali soil, effective inhibition and prevention of plant diseases and insect pests, cotton supply and growth promotion effects and the like, and solves the problem of low seedling emergence rate of cotton due to low-temperature freeze injury, adversity stress and other reasons in the seedling stage.
According to an embodiment of the present invention, the builder comprises at least one of sodium salicylate, nicotinamide, gamma-aminobutyric acid, glutamic acid, glycine and alpha-tocopherol, preferably the builder comprises both components. The inventor finds that a synergistic auxiliary agent composed of sodium salicylate, nicotinamide, gamma-aminobutyric acid, glutamic acid, glycine and alpha-tocopherol, wherein the sodium salicylate can resist the rooting, the nicotinamide can improve the stress resistance of plants, the gamma-aminobutyric acid can promote the growth of plants to resist the rooting, the glutamic acid can improve the germination rate of seeds and increase the biosynthesis of chlorophyll, and the glycine can improve the photosynthesis of crops and promote the growth of plants; alpha-tocopherol can promote germination and emergence of seedlings. Therefore, the synergistic auxiliary agent comprising sodium salicylate, nicotinamide, gamma-aminobutyric acid, glutamic acid, glycine and alpha-tocopherol can effectively improve the low Wen Baomiao rate of cotton, promote stress resistance in bud phase, improve rhizosphere environment and improve tolerance. Further, the synergistic agent also comprises at least one of cysteine, lysine hydrochloride, histidine hydrochloride, aspartic acid, proline, leucine, methionine, arginine, tyrosine, vitamin B, vitamin C, alginic acid and fish protein, and preferably comprises the components. The different amino acids have different physiological functions on crops, and the amino acids have cooperativity and interdependence, and the lack of one amino acid can cause the blocking of the metabolic processes of other amino acids, so that the vitamin B, the vitamin C, the alginic acid and the fish protein can improve the stress resistance of the crops.
According to an embodiment of the present invention, the co-agent includes 15 to 45 parts by weight of sodium salicylate, 5 to 15 parts by weight of nicotinamide, 5 to 10 parts by weight of gamma-aminobutyric acid, 5 to 15 parts by weight of glutamic acid, 5 to 15 parts by weight of glycine and 10 to 30 parts by weight of alpha-tocopherol, based on the total mass of the co-agent. Therefore, the content of each synergistic auxiliary agent is limited in the range, the synergistic effect of the product is obvious, and the cotton seedling emergence and protection are further facilitated. The inventor finds that if the content of sodium salicylate is too low, the salt and alkali resistance of cotton is low, which is unfavorable for the normal growth of cotton; if the content of nicotinamide is too low, the saline-alkali resistance of cotton is low, which is unfavorable for the normal growth of cotton; if the content of the gamma-aminobutyric acid is too low, the growth and seedling strengthening of cotton are not facilitated; if the content of the glutamic acid is too low, the photosynthesis of cotton is not facilitated, and if the content of the glutamic acid is too high, the rapid emergence of seeds is not facilitated; if the content of glycine is too low, the photosynthesis of cotton is not improved; if the content of alpha-tocopherol is too low, seed germination is not facilitated, and cotton emergence protection is not facilitated.
It will be appreciated by those skilled in the art that the saline-alkali tolerant bacteria are conventional bacteria in the art, and those skilled in the art can select, for example, the saline-alkali tolerant bacteria including at least one of trichoderma harzianum, bacillus thuringiensis, bacillus subtilis, saccharomycetes and bacillus megaterium, preferably trichoderma harzianum, because the trichoderma harzianum has not only the saline-alkali tolerant function but also the biological control function, and can effectively improve the disease resistance of crops. More preferably, the saline-alkali tolerant bacteria include all the above bacteria simultaneously. Further, the saline-alkali tolerant bacteria include 50-60 parts by weight of Trichoderma harzianum, 10-20 parts by weight of Bacillus thuringiensis, 10-20 parts by weight of Bacillus subtilis, 10-20 parts by weight of yeast and 10-20 parts by weight of Bacillus megaterium based on the total mass of the saline-alkali tolerant bacteria. Therefore, the contents of the components of the saline-alkali tolerant bacteria are limited in the range, the saline-alkali tolerant activity of cotton is further improved, the stress resistance of the cotton is improved, the plant diseases and insect pests of the cotton can be effectively inhibited and prevented, and particularly the content of trichoderma harzianum is controlled, because the content of trichoderma harzianum is too low, the saline-alkali tolerance and biological control function of crops are not improved, the content of trichoderma harzianum is too high, the effect is not proportional to the improvement of the content, and the cost is high, so that the transformation and popularization of products are not facilitated. Meanwhile, the potassium fulvate is at least one selected from biochemical potassium fulvate and mineral source potassium fulvate. The potassium fulvate is a plant growth regulating substance, can promote plant growth, and can increase plant stress resistance, yield and quality. Fulvic acid is the best core component for forming soil humus, and is a core substance for forming soil aggregate structure.
According to an embodiment of the invention, the second composition comprises component a and component B; the component A comprises a water-soluble fertilizer containing nitrogen, phosphorus and potassium; component B comprises an L-amino acid, said L-amino acid further comprising: 3 to 5 parts by weight of glycine, 3 to 5 parts by weight of alanine, 8 to 15 parts by weight of leucine, 5 to 10 parts by weight of histidine, 3 to 5 parts by weight of phenylalanine, 3 to 8 parts by weight of aspartic acid, 7 to 15 parts by weight of glutamic acid, 7 to 15 parts by weight of proline, 6 to 15 parts by weight of lysine, 3 to 10 parts by weight of arginine, 5 to 15 parts by weight of cysteine and 5 to 8 parts by weight of other amino acids. The inventor finds that the component A of the water-soluble fertilizer containing nitrogen, phosphorus and potassium can provide necessary nutrient elements for the whole growth period of cotton, coordinate crop growth vigor, enable nutrient growth to reasonably transition to reproductive growth, coordinate and coordinate, and according to the fertilizer requirement law of cotton in the whole growth period, the demand of seedlings for nitrogen, phosphorus and potassium is less in the bud emergence period, the demand of buds for nitrogen, phosphorus and potassium is rapidly increased in the bud emergence period, the flower bell period (flowers to boll opening) is the peak period of fertilizer requirement, and the fertilizer requirement after boll opening is gradually reduced, so that the component A is used in the bud period to flower bell period of cotton in order to ensure the whole growth robustness of cotton. The component B comprising L-amino acid can exert the functions of regulating growth and improving stress resistance, wherein proline can improve the stress resistance of cotton, histidine promotes cell division, endogenous hormone level is regulated and controlled, glycine and glutamic acid promote chlorophyll synthesis, lysine and glutamic acid improve crop cold resistance, so that rooting and vegetative growth of cotton are promoted, drought resistance, salt resistance and alkali resistance of cotton are improved, vegetative growth and reproductive growth are coordinated, cotton yield is improved, and meanwhile, the inventor finds that various amino acids of the component B need to be used in a proper weight range to fully exert the functions of the component B, for example, the addition amount of proline is too much, the functions of promoting growth and promoting root are weakened, the addition amount of proline is too little, and the functions of cold resistance and salt resistance are weakened. Therefore, the second composition can provide necessary nitrogen, phosphorus and potassium elements and nutrients for cotton growth in the bud period to the boll period of cotton, and meanwhile, the added proline, histidine, cysteine and the like can improve the stress resistance and oxidation resistance of the cotton, regulate air holes and promote cell division, so that the pollen vigor and germination are improved, and cotton flowering and bud emergence are promoted.
According to the embodiment of the invention, the mass ratio of nitrogen, phosphorus and potassium in the component A is (7-10): (10-30): (20-35). The inventor finds that the mass ratio of low nitrogen to high phosphorus to medium potassium is (7-10), for example, the mass ratio of nitrogen to phosphorus to potassium is (25-30), and the mass ratio of low nitrogen to high phosphorus to medium potassium is (20-25) according to the requirement rule of the cotton in the growing period for nutrients from the bud period to topping; in the middle stage of the flower bell, low nitrogen and medium phosphorus are applied, for example, the mass ratio of nitrogen, phosphorus and potassium is (7-10): (18-23): (20-25); in the later stage of the flower bell, low-nitrogen low-phosphorus high-potassium is applied, for example, the mass ratio of nitrogen, phosphorus and potassium is (7-10): 10-15): 30-35. If the ratio is not within the range, the cotton may be overgrown or undergrown in nutrition, and the transformation from the vegetative growth to the reproductive growth is delayed, so that the expansion of peach is inhibited, and the cotton yield is reduced. It will be appreciated by those skilled in the art that the nitrogen source, the phosphorus source and the potassium source are compounds conventional in the art for the nitrogen, phosphorus and potassium containing water soluble fertilizer, and that the skilled artisan can choose according to practice, for example, the nitrogen source includes at least one of urea, ammonium chloride and ammonium nitrate; the phosphorus source includes, but is not limited to, at least one of urea phosphate, monoammonium phosphate, and monopotassium phosphate; the potassium source includes, but is not limited to, at least one of potassium nitrate and potassium chloride.
According to an embodiment of the present invention, the mass ratio of the component a to the component B is (100 to 500): 1. the invention discovers that when the mass ratio of the component A to the component B is more than 500, various amino acids of the component B are insufficient to exert various functions such as growth regulation and stress resistance improvement; when the mass ratio of the component A to the component B is less than 100, the supply of nitrogen, phosphorus and potassium nutrient elements in the component A is insufficient, and various amino acids in the component B are wasted. Therefore, the mass ratio of the component A to the component B adopted in the application is (100-500): the second composition of 1 can meet the requirements of cotton plants on nitrogen, phosphorus and potassium nutrient elements in different growth periods, can play roles in regulating and controlling the growth and improving the stress resistance of cotton, coordinates the vegetative growth and reproductive growth of the plants, and ensures the steady growth of cotton in the whole growth period.
According to an embodiment of the present invention, the third composition comprises: 20-40 parts by weight of plant-derived amino acid polypeptide mother liquor, 20-40 parts by weight of animal-derived amino acid polypeptide mother liquor, 10-30 parts by weight of active compound amino acid, 5-20 parts by weight of trace element raw materials, 5-15 parts by weight of biological stimulation hormone and 2-10 parts by weight of emulsifying dispersant. The inventor discovers that the third composition contains plant-derived amino acid polypeptide mother liquor, animal-derived amino acid polypeptide mother liquor and active compound amino acid, and simultaneously trace element raw materials and biological stimulation hormone are added, so that the compatibility of the components is good, the components are easy to be absorbed and utilized by crops, and synergistic effect can be generated between the components, so that the amino acid water-soluble fertilizer has the comprehensive effects of promoting the growth of crops, improving the stress resistance of the crops, improving the quality and increasing the yield and improving the quality of the crops. Therefore, the third composition can promote the growth of crops, improve the stress resistance of the crops, promote the transformation from vegetative growth to reproductive growth and promote the transfer of photosynthetic products to cotton bolls when used in the cotton boll period, thereby improving the weight of single bolls and further improving the cotton yield.
The inventors have further found that because the third composition is primarily intended to promote the transition of crop growth from vegetative to reproductive growth, it can promote flowering, boll formation and boll expansion, reduce boll shedding, and if used in a period other than the boll period, it does not promote cell division, enhance pollen viability and germination, and promote cotton flowering and budding. It will be appreciated by those skilled in the art that the trace element raw materials, biostimulant and emulsifying dispersant are conventional formulations in the art, and those skilled in the art may select according to practice, for example, the trace element raw materials include at least one selected from zinc sulfate, disodium zinc edetate, manganese sulfate, disodium manganese edetate, ferrous sulfate, disodium iron edetate, sodium octaborate tetrahydrate and ammonium molybdate, the biostimulant includes at least one selected from maltitol, mannitol, polyglutamic acid, polyaspartic acid potassium, chitosan oligosaccharide, alginic acid extract, potassium humate and potassium fulvate, and the emulsifying dispersant includes at least one selected from dispersants, defoamers, preservatives, anti-crystallization agents and wetting penetrants.
According to an embodiment of the invention, the plant-derived amino acid polypeptide mother liquor comprises L-amino acids, plant-derived small peptides and plant-derived polypeptides, the animal-derived amino acid polypeptide mother liquor comprises L-amino acids, animal-derived small peptides and animal-derived polypeptides, and the active compound amino acids comprise a plurality of L-amino acids. The plant-derived amino acid polypeptide mother liquor is prepared from plant raw materials such as soybean, corn, wheat and the like, and the animal-derived amino acid polypeptide mother liquor is prepared by hydrolyzing animal skin bones and the like. It is understood that the L-amino acid in the plant-derived amino acid polypeptide mother liquor, the L-amino acid in the animal-derived amino acid polypeptide mother liquor, and the L-amino acid in the active compound amino acid may each be independently selected from various L-amino acids known in the fertilizer art, for example, may each be independently selected from at least one or more of methionine, alanine, leucine, histidine, phenylalanine, aspartic acid, and the like. The L-amino acid in the third composition is different from the L-amino acid in the component B in the second composition, the L-amino acid in the component B in the second composition mainly plays roles in promoting root growth and stress resistance, and the L-amino acid in the third composition mainly plays roles in promoting expression of genes related to flowering, promoting synthesis and synergism of endogenous hormones of crops so as to promote flowering and boll swelling, and has the effects of stress resistance and stress resistance.
Therefore, the combined fertilizer comprises three different compositions, each composition has different action mechanisms and effects on the growth of cotton, and the three compositions are used together in the whole growth and development stage of cotton, so that not only are the stress resistance of cotton such as drought resistance, salt and alkali resistance and the like improved, but also the emergence, nutrition and reproductive growth of cotton can be promoted, the falling off of cotton bolls is prevented, and the yield of cotton is further improved.
In yet another aspect, the invention provides a method of fertilizing cotton. According to an embodiment of the invention, the method comprises: in the cotton seedling stage, the first composition of the combined fertilizer is dripped or flushed with water; the second composition of the combined fertilizer is dripped or irrigated with water in the bud period to the boll period of the cotton; and in the cotton boll period, the third composition of the combined fertilizer is sprayed on the leaf surface.
The inventor discovers that in the seedling stage of cotton, the first composition of the combined fertilizer is sprayed or irrigated with water, because the first composition has the advantages of high activity on saline-alkali soil, effective inhibition and prevention of plant diseases and insect pests, feed and growth promotion effect on cotton and the like, the problem of low seedling emergence rate of cotton caused by low-temperature freeze injury, adverse stress and other reasons in the seedling stage is solved, and meanwhile, the first composition can improve saline-alkali soil, improve rhizosphere environment, induce root system to secrete organic acid, improve cotton resistance and further improve cotton seedling emergence rate; the second composition of the combined fertilizer is dripped or flushed with water in the bud period to the boll period of the cotton, the second composition can provide elements and nutrients such as nitrogen, phosphorus, potassium and the like necessary for cotton growth, and meanwhile, the added proline, histidine, cysteine and the like can improve the stress resistance and oxidation resistance of the cotton, can regulate air holes and promote cell division, so that the pollen vigor and germination are improved, and cotton flowering and bud emergence are promoted; in the cotton boll period, the third composition of the combined fertilizer is sprayed on leaf surfaces, and is rich in plant source amino acid polypeptide mother liquor, animal source amino acid polypeptide mother liquor and active compound amino acid, and trace element raw materials and biological stimulation hormone are added, so that the compatibility of the components is good, the components are easy to be absorbed and utilized by crops, and synergistic effect can be generated between the components, and the third composition has the effects of promoting the growth of crops, improving the stress resistance of crops, promoting the transformation of nutritional growth to reproductive growth, promoting the transfer of photosynthetic products to bolls, and further improving the weight of single bolls and the cotton yield. Therefore, the fertilizing method is adopted, namely, the relationship between the vegetative growth and reproductive growth of cotton is balanced by regulating and controlling the reasonable and efficient nutrition supply of plants, the capability of the cotton plants for resisting adversity stress such as low temperature, drought, salt and alkali is fundamentally enhanced, the emergence rate of cotton can be improved, and bolls are prevented from falling off, so that the yield and quality of cotton are improved.
According to an embodiment of the invention, the first composition is applied in an amount of 2.5 to 5 kg/mu at a time; the application amount of the second composition is 2 to 8 kg/mu at a time; the application amount of the third composition is 100-300 ml/mu at a time. The inventor finds that in the cotton seedling stage, too much first composition is applied at each time, waste is caused, too little first composition is applied at each time, the problem of low seedling emergence rate of cotton due to low-temperature freeze injury, adverse stress and the like in the seedling stage is not solved, in the cotton bud stage to the flower bell stage, too much second composition is applied at each time, overabundant nutrition growth of cotton plants is caused, overabundant plants are generated, too little second composition is applied at each time, the cotton plants have long potential difference, the yield of later cotton fields is influenced, in the cotton boll stage, potential safety risks are caused when the third composition is applied at each time, waste is caused, and the third composition is too little at each time, the transition of crops from nutrition growth to reproductive growth is not promoted, flowering, boll formation and boll expansion are promoted, and the cotton boll shedding is reduced. Therefore, the application amount of the first composition is 2.5-5 kg/mu, the application amount of the second composition is 2-8 kg/mu, and the application amount of the third composition is 100-300 ml/mu, so that the emergence rate of cotton can be improved, and the bolls and bolls are prevented from falling off. Further, the first composition may be applied 1 time during the cotton seedling stage; the second composition can be used 3 times during the bud period to the boll period of the cotton; the third composition may be applied 2 to 3 times during the cotton boll period.
The invention will now be described with reference to specific examples, which are intended to be illustrative only and not limiting in any way.
Test 1
Test site: xinjiang stone and river 122 ball
Test time: 2021, 4, 20, 2021, 10, 17
And (3) test design: each treatment area is 20 mu.
Control group 1: after sowing for one week, 2.5kg of potassium fulvate organic liquid fertilizer is added per mu when seedling water is dripped. The method comprises the steps of (1) starting from a bud period, applying a water-soluble fertilizer containing nitrogen, phosphorus and potassium along with water drops, namely a component A in a second composition for 8 times during each irrigation, wherein 3 times of low-nitrogen high-phosphorus medium-potassium is applied from the bud period to topping, namely the mass ratio of nitrogen to phosphorus to potassium is 8:30:22, and 5 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 3 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 4 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 2 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total weight is 31 kg/mu in the whole process of 2 kg/mu/time; in addition, urea is applied along with water drops at 2 kg/mu each time of water filling, and the total amount is 16 kg/mu in the whole process.
Control group 2: after one week of sowing, 2.5kg of a first composition per mu was added at the time of seedling emergence water, the first composition comprising: 65 parts by weight of water, 6 parts by weight of urea, 7 parts by weight of urea phosphate, 7 parts by weight of potassium fulvate, 8 parts by weight of potassium dihydrogen phosphate, 4.5 parts by weight of potassium chloride, 2 parts by weight of a synergistic agent and 2 parts by weight of saline-alkali tolerant bacteria. The synergistic agent comprises 35 parts by weight of sodium salicylate, 10 parts by weight of nicotinamide, 10 parts by weight of gamma-aminobutyric acid, 10 parts by weight of glutamic acid, 10 parts by weight of glycine and 25 parts by weight of alpha-tocopherol based on the total mass of the synergistic agent. The saline-alkali tolerant bacteria comprise 60 parts of trichoderma harzianum, 10 parts of bacillus thuringiensis, 10 parts of bacillus subtilis, 10 parts of saccharomycetes and 10 parts of bacillus megaterium by weight based on the total mass of the saline-alkali tolerant bacteria. The method comprises the steps of (1) starting from a bud period, applying a water-soluble fertilizer containing nitrogen, phosphorus and potassium along with water drops, namely a component A in a second composition for 8 times during each irrigation, wherein 3 times of low-nitrogen high-phosphorus medium-potassium is applied from the bud period to topping, namely the mass ratio of nitrogen to phosphorus to potassium is 8:30:22, and 5 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 3 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 4 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 2 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total weight is 31 kg/mu in the whole process of 2 kg/mu/time; in addition, urea is applied along with water drops at 2 kg/mu each time of water filling, and the total amount is 16 kg/mu in the whole process.
Control group 3: after sowing for one week, 2.5kg of potassium fulvate organic liquid fertilizer is added per mu when seedling water is dripped. Dropping a second composition from the bud phase, the second composition comprising a component A and a component B, the component B comprising the following L-amino acids in mass fraction: glycine 3%, alanine 3%, leucine 10%, histidine 7%, phenylalanine 3%, aspartic acid 3%, glutamic acid 14%, proline 13%, lysine 14%, arginine 10%, cysteine 14% and other amino acids 6%, and from the bud stage, a water-soluble fertilizer containing nitrogen, phosphorus and potassium, namely a component A in the second composition, is applied along with water drops for 8 times during each irrigation, wherein from the bud stage to the topping, a low-nitrogen high-phosphorus medium-potassium type is applied for 3 times, namely the mass ratio of nitrogen, phosphorus and potassium is 8:30:22, 5/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 3 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 4 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 2 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total weight is 31 kg/mu in the whole process of 2 kg/mu/time; in addition, urea is applied along with water drops at 2 kg/mu each time of water filling, and the total amount is 16 kg/mu in the whole process. Wherein the mass ratio of the component A to the component B is 300:1.
Control group 4: after sowing for one week, 2.5kg of potassium fulvate organic liquid fertilizer is added per mu when seedling water is dripped. The method comprises the steps of (1) starting from a bud period, applying a water-soluble fertilizer containing nitrogen, phosphorus and potassium along with water drops, namely a component A in a second composition for 8 times during each irrigation, wherein 3 times of low-nitrogen high-phosphorus medium-potassium is applied from the bud period to topping, namely the mass ratio of nitrogen to phosphorus to potassium is 8:30:22, and 5 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 3 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 4 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 2 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total weight is 31 kg/mu in the whole process of 2 kg/mu/time; in addition, when water is irrigated each time, urea is applied along with water drops for 2 kg/mu, and the total amount is 16 kg/mu in the whole process; and applying the third composition during the boll period, foliar spraying 3 times, 150 ml/mu/time, and the third composition comprising: 20 parts of plant-derived amino acid polypeptide mother liquor, 30 parts of animal-derived amino acid polypeptide mother liquor, 30 parts of active compound amino acid, 15 parts of microelement raw materials (10 parts of zinc sulfate and 5 parts of manganese sulfate), 5 parts of biological stimulation hormone (2 parts of maltitol and 3 parts of potassium fulvate), and 5 parts of emulsifying dispersant (2 parts of defoamer, 1 part of polyethylene glycol and 2 parts of sodium dodecyl benzene sulfonate).
Treatment group: after one week of sowing, 2.5kg of the first composition was added per mu when seedling water was dropped, the first composition comprising: 65 parts by weight of water, 6 parts by weight of urea, 7 parts by weight of urea phosphate, 7 parts by weight of potassium fulvate, 8 parts by weight of potassium dihydrogen phosphate, 4.5 parts by weight of potassium chloride, 2 parts by weight of a synergistic agent and 2 parts by weight of saline-alkali tolerant bacteria. The synergistic agent comprises 35 parts by weight of sodium salicylate, 10 parts by weight of nicotinamide, 10 parts by weight of gamma-aminobutyric acid, 10 parts by weight of glutamic acid, 10 parts by weight of glycine and 25 parts by weight of alpha-tocopherol based on the total mass of the synergistic agent. The saline-alkali tolerant bacteria comprise 60 parts of trichoderma harzianum, 10 parts of bacillus thuringiensis, 10 parts of bacillus subtilis, 10 parts of saccharomycetes and 10 parts of bacillus megaterium by weight based on the total mass of the saline-alkali tolerant bacteria. Dropping a second composition from the bud phase, the second composition comprising a component A and a component B, the component B comprising the following L-amino acids in mass fraction: glycine 3%, alanine 3%, leucine 10%, histidine 7%, phenylalanine 3%, aspartic acid 3%, glutamic acid 14%, proline 13%, lysine 14%, arginine 10%, cysteine 14% and other amino acids 6%; the method comprises the steps of (1) starting from a bud period, applying a water-soluble fertilizer containing nitrogen, phosphorus and potassium along with water drops, namely a component A in a second composition for 8 times during each irrigation, wherein 3 times of low-nitrogen high-phosphorus medium-potassium is applied from the bud period to topping, namely the mass ratio of nitrogen to phosphorus to potassium is 8:30:22, and 5 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 3 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 4 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 2 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total weight is 31 kg/mu in the whole process of 2 kg/mu/time; in addition, urea is applied along with water drops at 2 kg/mu each time of water filling, and the total amount is 16 kg/mu in the whole process. Wherein the mass ratio of the component A to the component B is 300:1. And applying the third composition in the flowering bell period, the foliar spraying is performed 3 times, respectively, starting in the initial flowering period, 3 times continuously, at intervals of 7 days, 150 ml/mu/time, and the third composition comprises: 20 parts of plant-derived amino acid polypeptide mother liquor, 30 parts of animal-derived amino acid polypeptide mother liquor, 30 parts of active compound amino acid, 15 parts of microelement raw materials (10 parts of zinc sulfate and 5 parts of manganese sulfate), 5 parts of biological stimulation hormone (2 parts of maltitol and 3 parts of potassium fulvate), and 5 parts of emulsifying dispersant (2 parts of defoamer, 1 part of polyethylene glycol and 2 parts of sodium dodecyl benzene sulfonate).
The cotton emergence rate and average plant height were counted 7d after the first fertilization, the cotton seedling protection rate was investigated after low temperature, the leaf SPAD and dry matter accumulation were investigated in the pollen bell period, the number of individual plants, the weight of individual plants and the acre yield were counted at the time of harvesting, and the measurement results are shown in table 1.
TABLE 1
As can be seen from Table 1, the 15d emergence rate, 15d plant height, flower bell period SPAD, flower bell period dry matter accumulation, single plant bell number, single bell weight, mu yield and micronaire value of the treatment group are all larger than those of the control group 1 to the control group 4, so that the combined fertilizer and the cotton fertilization method can effectively improve the emergence rate of cotton, prevent the flower bell and the cotton bell from falling off, improve the stress resistance of the cotton and further remarkably improve the yield of the cotton. The first composition has obvious effect on solving the problem of low seedling emergence rate caused by adverse stress such as soil saline-alkali, low-temperature freeze injury and the like in the cotton seedling stage, and can promote the cotton seedling emergence and protection and seedling growth at present. The SPAD of the control group 1 and the SPAD of the control group 3 in the flower bell period and the accumulation of dry matters can be seen, and the second composition has the effects of improving the stress resistance of cotton, improving the nutrient utilization rate and balancing the vegetative growth and reproductive growth of cotton plants by providing necessary nitrogen, phosphorus and potassium elements and nutrients for the growth of cotton, and is higher in SPAD value and more in dry matter accumulation. As can be seen from the control group 1 and the control group 4, the number of single plants and the single boll weight of the control group 4 are better than those of the control group 1, which indicates that the third composition can continuously promote the transition of cotton from vegetative growth to reproductive growth and promote flowering, boll formation and boll expansion. In conclusion, the three groups of compositions are combined for use, so that the cotton yield and quality index are better.
Test 2
Test site: xinjiang Shaya county farm
Test time: 25 th 4 th 2021- -20 th 10 th 2021
And (3) test design: each treatment area is 20 mu.
Control group 1: after sowing for one week, 3kg of potassium fulvate organic liquid fertilizer is added per mu when seedling water is dripped. The method comprises the steps of (1) starting from a bud period, applying a water-soluble fertilizer containing nitrogen, phosphorus and potassium along with water drops, namely a component A in a second composition for 7 times during each irrigation, wherein 3 times of low-nitrogen high-phosphorus medium-potassium is applied from the bud period to topping, namely the mass ratio of nitrogen to phosphorus to potassium is 8:30:22, and 5 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 2-2 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 5 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 2-2 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total amount of 2 kg/mu is 29 kg/mu in the whole process; in addition, urea is applied along with water drops for 2 kg/mu in each water filling, and the total amount is 14 kg/mu in the whole process.
Control group 2: after one week of sowing, 3kg of the first composition was added per mu when seedling water was dropped, comprising: 60 parts by weight of water, 10 parts by weight of urea, 5 parts by weight of urea phosphate, 10 parts by weight of potassium fulvate, 5 parts by weight of potassium dihydrogen phosphate, 5 parts by weight of potassium chloride, 1 part by weight of a synergistic agent and 1.5 parts by weight of saline-alkali tolerant bacteria. The synergistic agent comprises 15 parts by weight of sodium salicylate, 15 parts by weight of nicotinamide, 5 parts by weight of gamma-aminobutyric acid, 15 parts by weight of glutamic acid, 5 parts by weight of glycine and 30 parts by weight of alpha-tocopherol based on the total mass of the synergistic agent. The saline-alkali tolerant bacteria comprise 55 parts by weight of trichoderma harzianum, 15 parts by weight of bacillus thuringiensis, 15 parts by weight of bacillus subtilis, 15 parts by weight of saccharomycetes and 15 parts by weight of bacillus megaterium based on the total mass of the saline-alkali tolerant bacteria. The method comprises the steps of (1) starting from a bud period, applying a water-soluble fertilizer containing nitrogen, phosphorus and potassium along with water drops, namely a component A in a second composition for 7 times during each irrigation, wherein 3 times of low-nitrogen high-phosphorus medium-potassium is applied from the bud period to topping, namely the mass ratio of nitrogen to phosphorus to potassium is 8:30:22, and 5 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 2 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 5 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 2 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total amount of 2 kg/mu is 29 kg/mu in the whole process; in addition, urea is applied along with water drops for 2 kg/mu in each water filling, and the total amount is 14 kg/mu in the whole process.
Control group 3: after sowing for one week, 3kg of potassium fulvate organic liquid fertilizer is added per mu when seedling water is dripped. Dropping a second composition from the bud phase, the second composition comprising a component A and a component B, the component B comprising the following L-amino acids in mass fraction: glycine 4%, alanine 4%, leucine 9%, histidine 8%, phenylalanine 3%, aspartic acid 4%, glutamic acid 12%, proline 12%, lysine 11%, arginine 13%, cysteine 13% and other amino acids 7%. The water-soluble fertilizer containing nitrogen, phosphorus and potassium is dripped from the bud stage to form the component A in the second composition, wherein the water-soluble fertilizer containing nitrogen, phosphorus and potassium is dripped with the water for 7 times when the water is irrigated from the bud stage, and the low-nitrogen high-phosphorus medium-potassium type is applied for 3 times from the bud stage to the topping stage, namely the mass ratio of the nitrogen, the phosphorus and the potassium is 8:30:22,5 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 2 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 5 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 2 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total amount of 2 kg/mu is 29 kg/mu in the whole process; in addition, when water is irrigated each time, urea is applied along with water drops for 2 kg/mu, and the total amount is 14 kg/mu in the whole process; wherein the mass ratio of the component A to the component B is 200:1.
Control group 4: after sowing for one week, 3kg of potassium fulvate organic liquid fertilizer is added per mu when seedling water is dripped. The water-soluble fertilizer containing nitrogen, phosphorus and potassium is dripped from the bud stage to form the component A in the second composition, wherein the water-soluble fertilizer containing nitrogen, phosphorus and potassium is dripped with the water for 7 times when the water is irrigated from the bud stage, and the low-nitrogen high-phosphorus medium-potassium type is applied for 3 times from the bud stage to the topping stage, namely the mass ratio of the nitrogen, the phosphorus and the potassium is 8:30:22,5 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 2 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 5 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 2 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total amount of 2 kg/mu is 29 kg/mu in the whole process; in addition, urea is applied along with water drops for 2 kg/mu in each water filling, and the total amount is 14 kg/mu in the whole process. And applying the third composition in the boll period, and spraying the third composition on the leaf surface for 3 times, wherein the third composition is 200 ml/mu/time. And the third composition comprises: 40 parts of plant-derived amino acid polypeptide mother liquor, 20 parts of animal-derived amino acid polypeptide mother liquor, 10 parts of active compound amino acid, 5 parts of microelement raw materials (zinc sulfate 3 parts and manganese sulfate 2 parts), 15 parts of biological stimulation hormone (polyglutamic acid 10 parts and potassium humate 5 parts) and 10 parts of emulsifying dispersant (defoamer 1 part, polyethylene glycol 8 parts and sodium dodecyl benzene sulfonate 1 part).
Treatment group: after one week of sowing, 3kg of the first composition was added per mu when seedling water was dropped, comprising: 60 parts by weight of water, 10 parts by weight of urea, 5 parts by weight of urea phosphate, 10 parts by weight of potassium fulvate, 5 parts by weight of potassium dihydrogen phosphate, 5 parts by weight of potassium chloride, 1 part by weight of a synergistic agent and 1.5 parts by weight of saline-alkali tolerant bacteria. The synergistic agent comprises 15 parts by weight of sodium salicylate, 15 parts by weight of nicotinamide, 5 parts by weight of gamma-aminobutyric acid, 15 parts by weight of glutamic acid, 5 parts by weight of glycine and 30 parts by weight of alpha-tocopherol based on the total mass of the synergistic agent. The saline-alkali tolerant bacteria comprise 55 parts by weight of trichoderma harzianum, 15 parts by weight of bacillus thuringiensis, 15 parts by weight of bacillus subtilis, 15 parts by weight of saccharomycetes and 15 parts by weight of bacillus megaterium based on the total mass of the saline-alkali tolerant bacteria. Dropping a second composition from the bud phase, the second composition comprising a component A and a component B, the component B comprising the following L-amino acids in mass fraction: glycine 4%, alanine 4%, leucine 9%, histidine 8%, phenylalanine 3%, aspartic acid 4%, glutamic acid 12%, proline 12%, lysine 11%, arginine 13%, cysteine 13% and other amino acids 7%. The method comprises the steps of (1) starting from a bud period, applying a water-soluble fertilizer containing nitrogen, phosphorus and potassium along with water drops, namely a component A in a second composition for 7 times during each irrigation, wherein 3 times of low-nitrogen high-phosphorus medium-potassium is applied from the bud period to topping, namely the mass ratio of nitrogen to phosphorus to potassium is 8:30:22, and 5 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 2 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 5 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 2 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total amount of 2 kg/mu is 29 kg/mu in the whole process; in addition, urea is applied along with water drops for 2 kg/mu in each water filling, and the total amount is 14 kg/mu in the whole process. Wherein the mass ratio of the component A to the component B is 200:1. And applying the third composition in the boll period, and spraying the third composition on the leaf surface for 3 times, wherein the third composition is 200 ml/mu/time. And the third composition comprises: 40 parts of plant-derived amino acid polypeptide mother liquor, 20 parts of animal-derived amino acid polypeptide mother liquor, 10 parts of active compound amino acid, 5 parts of microelement raw materials (zinc sulfate 3 parts and manganese sulfate 2 parts), 15 parts of biological stimulation hormone (polyglutamic acid 10 parts and potassium humate 5 parts) and 10 parts of emulsifying dispersant (defoamer 1 part, polyethylene glycol 8 parts and sodium dodecyl benzene sulfonate 1 part).
The cotton emergence rate and average plant height were counted 7d after the first fertilization, the cotton seedling protection rate was investigated after low temperature, the leaf SPAD and dry matter accumulation were investigated in the pollen bell period, the number of individual plants, the weight of individual plants and the acre yield were counted at the time of harvesting, and the measurement results are shown in table 2.
TABLE 2
From the data in table 2, it can be seen that the 15d emergence rate, 15d plant height, SPAD in the boll period, dry matter accumulation in the boll period, number of individual bolls, weight of individual bolls, acre yield and micronaire value of the treated group are all larger than those of the control group 1 to the control group 4, which indicates that the combined fertilizer and the cotton fertilization method can effectively improve the emergence rate of cotton, prevent the falling of the bolls and the bolls, improve the stress resistance of the cotton and further remarkably improve the yield of the cotton. The first composition has obvious effect on solving the problem of low seedling emergence rate caused by adverse stress such as soil saline-alkali, low-temperature freeze injury and the like in the cotton seedling stage, and can promote the cotton seedling emergence and protection and seedling growth at present. The SPAD of the control group 1 and the SPAD of the control group 3 in the flower bell period and the accumulation of dry matters can be seen, and the second composition has the effects of improving the stress resistance of cotton, improving the nutrient utilization rate and balancing the vegetative growth and reproductive growth of cotton plants by providing necessary nitrogen, phosphorus and potassium elements and nutrients for the growth of cotton, and is higher in SPAD value and more in dry matter accumulation. As can be seen from the control group 1 and the control group 4, the number of single plants and the single boll weight of the control group 4 are better than those of the control group 1, which indicates that the third composition can continuously promote the transition of cotton from vegetative growth to reproductive growth and promote flowering, boll formation and boll expansion. In conclusion, the three groups of compositions are combined for use, so that the cotton yield and quality index are better.
Test 3
Test site: liu Maowan of Xinjiang Shawan county
Test time: 2021, 4, 17, 2021, 10, 15
And (3) test design: each treatment area is 20 mu.
Control group 1: after one week of sowing, 3kg of the first composition was added per mu when seedling water was dropped, comprising: 60 parts by weight of water, 10 parts by weight of urea, 5 parts by weight of urea phosphate, 10 parts by weight of potassium fulvate, 5 parts by weight of potassium dihydrogen phosphate, 5 parts by weight of potassium chloride, 1 part by weight of a synergistic agent and 1.5 parts by weight of saline-alkali tolerant bacteria. The synergistic agent comprises 15 parts by weight of sodium salicylate, 15 parts by weight of nicotinamide, 5 parts by weight of gamma-aminobutyric acid, 15 parts by weight of glutamic acid, 5 parts by weight of glycine and 30 parts by weight of alpha-tocopherol based on the total mass of the synergistic agent. The saline-alkali tolerant bacteria comprise 55 parts by weight of trichoderma harzianum, 15 parts by weight of bacillus thuringiensis, 15 parts by weight of bacillus subtilis, 15 parts by weight of saccharomycetes and 15 parts by weight of bacillus megaterium based on the total mass of the saline-alkali tolerant bacteria. Dropping a second composition from the bud phase, the second composition comprising a component A and a component B, the component B comprising the following L-amino acids in mass fraction: glycine 4%, alanine 4%, leucine 9%, histidine 8%, phenylalanine 3%, aspartic acid 4%, glutamic acid 12%, proline 12%, lysine 11%, arginine 13%, cysteine 13% and other amino acids 7%. Starting from the bud period, applying a water-soluble fertilizer containing nitrogen, phosphorus and potassium along with water drops, namely, a component A in a second composition for 10 times when water is irrigated, wherein 3 times of low-nitrogen high-phosphorus medium-potassium is applied from the bud period to topping, namely, the mass ratio of nitrogen, phosphorus and potassium is 8:30:22, and 4 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 4 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 4 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 3 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total amount of 2 kg/mu is 34 kg/mu in the whole process; in addition, when water is irrigated each time, 1.5 kg/mu of urea is applied along with water drops, and the total amount is 15 kg/mu in the whole process. Wherein the mass ratio of the component A to the component B is 400:1. And applying the third composition in bud stage, and spraying on leaf surface for 3 times, 100 ml/mu/time. And the third composition comprises: 30 parts of plant-derived amino acid polypeptide mother liquor, 40 parts of animal-derived amino acid polypeptide mother liquor, 20 parts of active compound amino acid, 10 parts of microelement raw materials (5 parts of zinc sulfate and 5 parts of manganese sulfate), 10 parts of biological stimulation hormone (5 parts of polyglutamic acid and 5 parts of potassium humate), and 2 parts of emulsifying dispersant (1 part of defoamer and 1 part of polyethylene glycol).
Control group 2: after one week of sowing, 3kg of the first composition was added per mu when seedling water was dropped, comprising: 60 parts by weight of water, 10 parts by weight of urea, 5 parts by weight of urea phosphate, 10 parts by weight of potassium fulvate, 5 parts by weight of potassium dihydrogen phosphate, 5 parts by weight of potassium chloride, 1 part by weight of a synergistic agent and 1.5 parts by weight of saline-alkali tolerant bacteria. The synergistic agent comprises 15 parts by weight of sodium salicylate, 15 parts by weight of nicotinamide, 5 parts by weight of gamma-aminobutyric acid, 15 parts by weight of glutamic acid, 5 parts by weight of glycine and 30 parts by weight of alpha-tocopherol based on the total mass of the synergistic agent. The saline-alkali tolerant bacteria comprise 55 parts by weight of trichoderma harzianum, 15 parts by weight of bacillus thuringiensis, 15 parts by weight of bacillus subtilis, 15 parts by weight of saccharomycetes and 15 parts by weight of bacillus megaterium based on the total mass of the saline-alkali tolerant bacteria. Dropping a second composition from the bud phase, the second composition comprising a component A and a component B, the component B comprising the following L-amino acids in mass fraction: glycine 4%, alanine 4%, leucine 9%, histidine 8%, phenylalanine 3%, aspartic acid 4%, glutamic acid 12%, proline 12%, lysine 11%, arginine 13%, cysteine 13% and other amino acids 7%. Starting from the bud period, applying a water-soluble fertilizer containing nitrogen, phosphorus and potassium along with water drops, namely, a component A in a second composition for 10 times when water is irrigated, wherein 3 times of low-nitrogen high-phosphorus medium-potassium is applied from the bud period to topping, namely, the mass ratio of nitrogen, phosphorus and potassium is 8:30:22, and 4 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 4 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 4 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 3 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total amount of 2 kg/mu is 34 kg/mu in the whole process; in addition, when water is irrigated each time, 1.5 kg/mu of urea is applied along with water drops, and the total amount is 15 kg/mu in the whole process. Wherein the mass ratio of the component A to the component B is 400:1. And applying the third composition in the opening period, and spraying the third composition on the leaf surface for 3 times, wherein the third composition is 100 ml/mu/time. And the third composition comprises: 30 parts of plant-derived amino acid polypeptide mother liquor, 40 parts of animal-derived amino acid polypeptide mother liquor, 20 parts of active compound amino acid, 10 parts of microelement raw materials (5 parts of zinc sulfate and 5 parts of manganese sulfate), 10 parts of biological stimulation hormone (5 parts of polyglutamic acid and 5 parts of potassium humate), and 2 parts of emulsifying dispersant (1 part of defoamer and 1 part of polyethylene glycol).
Treatment group: after one week of sowing, 3kg of the first composition was added per mu when seedling water was dropped, comprising: 60 parts by weight of water, 10 parts by weight of urea, 5 parts by weight of urea phosphate, 10 parts by weight of potassium fulvate, 5 parts by weight of potassium dihydrogen phosphate, 5 parts by weight of potassium chloride, 1 part by weight of a synergistic agent and 1.5 parts by weight of saline-alkali tolerant bacteria. The synergistic agent comprises 15 parts by weight of sodium salicylate, 15 parts by weight of nicotinamide, 5 parts by weight of gamma-aminobutyric acid, 15 parts by weight of glutamic acid, 5 parts by weight of glycine and 30 parts by weight of alpha-tocopherol based on the total mass of the synergistic agent. The saline-alkali tolerant bacteria comprise 55 parts by weight of trichoderma harzianum, 15 parts by weight of bacillus thuringiensis, 15 parts by weight of bacillus subtilis, 15 parts by weight of saccharomycetes and 15 parts by weight of bacillus megaterium based on the total mass of the saline-alkali tolerant bacteria. Dropping a second composition from the bud phase, the second composition comprising a component A and a component B, the component B comprising the following L-amino acids in mass fraction: glycine 4%, alanine 4%, leucine 9%, histidine 8%, phenylalanine 3%, aspartic acid 4%, glutamic acid 12%, proline 12%, lysine 11%, arginine 13%, cysteine 13% and other amino acids 7%. Starting from the bud period, applying a water-soluble fertilizer containing nitrogen, phosphorus and potassium along with water drops, namely, a component A in a second composition for 10 times when water is irrigated, wherein 3 times of low-nitrogen high-phosphorus medium-potassium is applied from the bud period to topping, namely, the mass ratio of nitrogen, phosphorus and potassium is 8:30:22, and 4 kg/mu/time; applying low nitrogen and medium phosphorus and medium potassium for 4 times in the middle stage of the flower bell, wherein the mass ratio of nitrogen to phosphorus to potassium is 10:20:20, and 4 kg/mu/time; applying low nitrogen, low phosphorus and high potassium for 3 times at the later stage of the flower bell, namely, the mass ratio of nitrogen, phosphorus and potassium is 7:10:35, and the total amount of 2 kg/mu is 34 kg/mu in the whole process; in addition, when water is irrigated each time, 1.5 kg/mu of urea is applied along with water drops, and the total amount is 15 kg/mu in the whole process. Wherein the mass ratio of the component A to the component B is 400:1. And applying the third composition in the boll period, and spraying the third composition on the leaf surface for 3 times, wherein the third composition is 200 ml/mu/time. And the third composition comprises: 30 parts of plant-derived amino acid polypeptide mother liquor, 40 parts of animal-derived amino acid polypeptide mother liquor, 20 parts of active compound amino acid, 10 parts of microelement raw materials (5 parts of zinc sulfate and 5 parts of manganese sulfate), 10 parts of biological stimulation hormone (5 parts of polyglutamic acid and 5 parts of potassium humate), and 2 parts of emulsifying dispersant (1 part of defoamer and 1 part of polyethylene glycol).
The cotton emergence rate and average plant height were counted 7d after the first fertilization, the cotton seedling protection rate was investigated after low temperature, the leaf SPAD and dry matter accumulation were investigated in the pollen bell period, the number of individual plants, the weight of individual plants and the acre yield were counted at the time of harvesting, and the measurement results are shown in table 3.
TABLE 3 Table 3
As can be seen from the data in table 3, the third composition applied during the bud phase (control group 1) had a further promoting effect on SPAD and dry matter accumulation during the flower bell phase, but had less effect on individual plant bell number and individual bell weight, since cotton during the bud phase was in a period of vegetative and reproductive growth in which the promoting effect on vegetative growth was more pronounced by the third composition applied; when the third composition was applied during the opening period (control group 2), it was difficult to have an effect on the number of individual bolls and the weight of individual bolls of cotton at this time.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. A compound fertilizer for saline-alkali soil cotton, comprising:
a first composition, the first composition comprising: 50 to 70 parts by weight of water, 3 to 10 parts by weight of N, 3 to 10 parts by weight of urea phosphate and/or monoammonium phosphate, 3 to 10 parts by weight of potassium fulvate, 5 to 10 parts by weight of monopotassium phosphate, 4 to 10 parts by weight of potassium chloride and/or potassium sulfate, 0.2 to 2 parts by weight of synergistic auxiliary agent and 0.5 to 2 parts by weight of saline-alkali tolerant bacteria;
a second composition, the second composition comprising:
a component A, wherein the component A comprises a water-soluble fertilizer containing nitrogen, phosphorus and potassium;
a component B comprising an L-amino acid, the L-amino acid further comprising: 3-5 parts of glycine, 3-5 parts of alanine, 8-15 parts of leucine, 5-10 parts of histidine, 3-5 parts of phenylalanine, 3-8 parts of aspartic acid, 7-15 parts of glutamic acid, 7-15 parts of proline, 6-15 parts of lysine, 3-10 parts of arginine, 5-15 parts of cysteine and 5-8 parts of other amino acids;
A third composition, the third composition comprising: 20-40 parts by weight of plant-derived amino acid polypeptide mother liquor, 20-40 parts by weight of animal-derived amino acid polypeptide mother liquor, 10-30 parts by weight of active compound amino acid, 5-20 parts by weight of trace element raw materials, 5-15 parts by weight of biological stimulation hormone and 2-10 parts by weight of emulsifying dispersant.
2. The combination fertilizer of claim 1, wherein in the first composition, the co-agent comprises at least one of sodium salicylate, nicotinamide, gamma-aminobutyric acid, glutamic acid, glycine, and alpha-tocopherol.
3. The combined fertilizer of claim 1, wherein in the first composition, the saline-alkali tolerant bacteria comprise at least one of trichoderma harzianum, bacillus thuringiensis, bacillus subtilis, yeast and bacillus megaterium.
4. The combined fertilizer according to claim 2, wherein the co-agent comprises 15 to 45 parts by weight of sodium salicylate, 5 to 15 parts by weight of nicotinamide, 5 to 10 parts by weight of gamma-aminobutyric acid, 5 to 15 parts by weight of glutamic acid, 5 to 15 parts by weight of glycine and 10 to 30 parts by weight of alpha-tocopherol, based on the total mass of the co-agent.
5. The combined fertilizer according to claim 1, wherein in the second composition, the mass ratio of nitrogen, phosphorus and potassium in the component a is (7 to 10): (10-30): (20-35).
6. The combined fertilizer according to claim 1 or 5, wherein the nitrogen source in the water-soluble fertilizer containing nitrogen, phosphorus and potassium comprises at least one of urea, ammonium chloride and ammonium nitrate;
optionally, the phosphorus source in the water-soluble fertilizer containing nitrogen, phosphorus and potassium comprises at least one of urea phosphate, monoammonium phosphate and monopotassium phosphate;
optionally, the potassium source in the water-soluble fertilizer containing nitrogen, phosphorus and potassium comprises at least one of potassium nitrate and potassium chloride.
7. The combined fertilizer according to claim 1 or 5, characterized in that in the second composition, the mass ratio of the component a and the component B is (100 to 500): 1.
8. the combination fertilizer of claim 1, wherein in the third composition the plant-derived amino acid polypeptide mother liquor comprises L-amino acids, plant-derived small peptides, and plant-derived polypeptides;
optionally, the animal-derived amino acid polypeptide stock solution comprises L-amino acids, animal-derived small peptides, and animal-derived polypeptides;
optionally, the active compound amino acid comprises a plurality of L-amino acids.
9. A method of fertilizing cotton comprising:
during cotton seedling stage, drip irrigation or flushing with water the first composition of the combined fertilizer of any one of claims 1-8;
drip irrigation or flushing with water a second composition of the combined fertilizer of any one of claims 1-8 during the bud to boll period of cotton;
a third composition of the combined fertilizer of any one of claims 1-8 applied to the foliage of cotton during the boll period.
10. The method of claim 9, wherein the step of determining the position of the substrate comprises,
the application amount of the first composition is 2.5 to 5 kg/mu/time;
the application amount of the second composition is 2-8 kg/mu/time;
the application amount of the third composition is 100-300 ml/mu/time.
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