CN113336597A - Slow-release and controlled-release eucalyptus weeding medicinal fertilizer granule and preparation method thereof - Google Patents

Slow-release and controlled-release eucalyptus weeding medicinal fertilizer granule and preparation method thereof Download PDF

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Publication number
CN113336597A
CN113336597A CN202110733795.7A CN202110733795A CN113336597A CN 113336597 A CN113336597 A CN 113336597A CN 202110733795 A CN202110733795 A CN 202110733795A CN 113336597 A CN113336597 A CN 113336597A
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China
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fertilizer
eucalyptus
release
pesticide
controlled
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Inventor
王超
方冬林
杨淑兰
余青云
韦茂春
易芬远
罗燕梅
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Guangxi Sanjing Chemical Science & Technology Co ltd
Guangxi Research Institute of Chemical Industry
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Guangxi Sanjing Chemical Science & Technology Co ltd
Guangxi Research Institute of Chemical Industry
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Priority to CN202110733795.7A priority Critical patent/CN113336597A/en
Publication of CN113336597A publication Critical patent/CN113336597A/en
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    • 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
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/12—Powders or granules
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • 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
    • C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
    • 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
    • C05G5/10—Solid or semi-solid fertilisers, e.g. powders
    • C05G5/12—Granules or flakes
    • 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
    • C05G5/30—Layered or coated, e.g. dust-preventing coatings
    • 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
    • C05G5/30—Layered or coated, e.g. dust-preventing coatings
    • C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
    • 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
    • C05G5/30—Layered or coated, e.g. dust-preventing coatings
    • C05G5/38—Layered or coated, e.g. dust-preventing coatings layered or coated with wax or resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Plant Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Soil Sciences (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a controlled-release eucalyptus weeding pesticide-fertilizer granule and a preparation method thereof, wherein the weeding pesticide-fertilizer granule is prepared from the following raw materials in parts by weight: 0.04-0.21% of hexazinone, 30-65% of fertilizer, 0.02-0.05% of microbial agent (the number of effective viable bacteria is more than or equal to 1000 hundred million cfu/g), 0.2-0.5% of gamma-polyglutamic acid, 10-20% of humic acid, 5-10% of seaweed fermentation product, 0.75-1.2% of coating agent and the balance auxiliary material. The preparation method comprises the steps of preparing the pesticide-fertilizer core, coating the coating layer and coating the soil improvement layer. According to the invention, by utilizing the principle of interaction of pesticide and fertilizer, different types of fertilizers and the herbicide active ingredient hexazinone with a sealing effect are compounded for use according to the characteristics of nutrients required by eucalyptus in different periods of growth, and the coating slow release technology is combined, so that the nutrient requirements of fast-growing eucalyptus plant growth are met, and the effect of weed control is also taken into consideration.

Description

Slow-release and controlled-release eucalyptus weeding medicinal fertilizer granule and preparation method thereof
Technical Field
The invention relates to the technical field of pesticides, and particularly relates to a controlled-release eucalyptus weeding pesticide-fertilizer granule and a preparation method thereof.
Background
The eucalyptus has the characteristics of strong adaptability, fast growth, barren resistance, strong stress resistance and the like, and is widely planted in the world. At present, eucalyptus has become the main tree species for afforestation in southern areas of China. However, as the growing area of eucalyptus grows larger and the number of successive planting generations increases, the phenomenon that the fertility of soil is not applied is more and more serious. In some areas, due to insufficient land fertility, the eucalyptus is directly caused to generate physiological diseases, and the sustainable management of the eucalyptus artificial forest is directly influenced. Relevant researches show that reasonable fertilization can improve the growth condition of eucalyptus, and the plant height, the breast diameter and the ground diameter are obviously increased. Therefore, reasonable and effective fertilization is one of effective measures for improving the quality of the artificial forest, promoting the fast growth and high yield of the eucalyptus and preventing the decline of the land fertility, and is also one of important means for realizing the sustainable development of the forest land.
Although fertilizers were used in large quantities in the cultivation and planting of eucalyptus in the early 90 s of the 20 th century. However, in the practical application process, problems such as improper fertilizer selection, low fertilizer utilization rate, unsatisfactory fertilizer efficiency and the like exist. Among them, the problems of low fertilizer utilization rate and unsatisfactory fertilizer efficiency are the most prominent. The main reasons are as follows: (1) eucalyptus is mostly planted in areas with fluctuant topography such as mountainous regions, sloping fields and the like, a large amount of rainfall in a short time can cause leaching loss of fertilizer, and nutrients are lost without being absorbed by the eucalyptus in time; (2) the eucalyptus forest is mostly located on hills or hills, the management is relatively extensive, and weeds, miscellaneous irrigation and various vines are easy to overgrow. If these weeds are not controlled in time, a considerable amount of fertilizer is consumed, resulting in waste of fertilizer. Therefore, the method effectively controls weeds and simultaneously prolongs the fertilizer efficiency duration of the fertilizer as far as possible, and is the key for improving the fertilizer utilization rate in the eucalyptus planting process.
The hexazinone belongs to a biocidal herbicide and has low toxicity to people and livestock. Is suitable for tending evergreen coniferous forests, such as young forests of Korean pine, Pinus sylvestris, spruce, Pinus massoniana and the like. Weeding, irrigating, maintaining forest fire-proof lines, forest stand reconstruction and the like before afforestation, and can prevent and kill most monocotyledonous and dicotyledonous weeds and woody plants such as lonicera caprea, Japanese apricot, hazelnut, spiraea salicifolia, acanthopanax, aspen, birch, basswood, northeast China ash, yellow pineapple, walnut fruit and the like. After the herbicide is applied to soil, the herbicide has stable efficacy, is not easy to decompose and has longer lasting period, so the herbicide has a certain sealing effect on weeds and is an excellent effective component of the long-acting forest herbicide.
After the fertilizer is subjected to coating treatment, the nutrient release rate is slower than that of a quick-acting fertilizer or a fertilizer without a coating, the nutrient duration is long, and nutrient loss and waste caused by rainwater, scouring or microbial decomposition due to insufficient absorption of crops after the nutrients are quickly released at one time can be effectively avoided.
Therefore, the controlled-release coating technology is combined with the herbicide and the fertilizer to form the controlled-release herbicide fertilizer, the requirements of eucalyptus forest planting management can be effectively met, and weed prevention and control are achieved while fertilization is carried out. Firstly, the fertilizer utilization rate can be effectively improved, and secondly, the consumption of related manpower, material resources and financial resources caused by weeding can be reduced or avoided. In addition, the microbial agent and the soil conditioner are added into the pesticide-fertilizer particles, so that the effects of effectively improving the soil of the forest land, improving the microbial community structure of the soil and improving the water and fertilizer retention performance of the soil can be achieved.
Disclosure of Invention
The invention overcomes the defects of the existing product, provides the controlled-release eucalyptus weeding medicinal fertilizer granules and the preparation method thereof, and has the advantages of safety, high efficiency, environmental protection, easily obtained raw materials and simple and convenient preparation.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a sustained-release eucalyptus weeding pesticide-fertilizer granule comprises the following components in percentage by mass: 0.04-0.21% of hexazinone, 30-65% of fertilizer, 0.02-0.05% of microbial agent, 0.2-0.5% of gamma-polyglutamic acid, 10-20% of humic acid, 5-10% of seaweed fermentation product, 0.75-1.2% of coating agent and the balance of auxiliary materials.
Further, the herbicide-fertilizer granules comprise a herbicide-fertilizer core, a coating layer and a soil improvement layer which are sequentially arranged from inside to outside, wherein the herbicide-fertilizer core consists of hexazinone, a fertilizer, humic acid, seaweed fermentation products and auxiliary materials; the coating layer comprises a coating agent; the soil improvement layer comprises a microbial agent and gamma-polyglutamic acid.
Further, the fertilizer comprises one or a combination of more of urea, ammonium chloride, ammonium sulfate, monoammonium phosphate, diammonium phosphate, potassium chloride, potassium sulfate, monopotassium phosphate and the like. The selection and the proportion of the fertilizer can be adjusted according to the growth period and the growth condition of the eucalyptus.
Further, the auxiliary material comprises one or a mixture of two of a binder and a filler;
the binder is one or a mixture of more of vegetable gum, animal gum and polyethylene glycol;
the filler is one or a mixture of more of kaolin, bentonite and attapulgite.
Further, the coating agent is one or a mixture of more of Arabic gum, polyvinyl alcohol, cyclodextrin, diphenylmethane diisocyanate and polypropylene carbonate.
Further, the mass ratio of the coating agent to the pesticide fertilizer core is controlled to be 1:80-1: 140.
Further, the microbial agent is one or a mixture of more of bacillus subtilis, bacillus licheniformis and bacillus amyloliquefaciens. The effective viable count of the microbial agent is more than or equal to 1000 hundred million cfu/g.
The preparation method of the controlled-release eucalyptus herbicide fertilizer granules comprises the following steps:
A. preparing a pesticide fertilizer core: pulverizing hexazinone, fertilizer, humic acid, seaweed fermentation product and filler, uniformly mixing, adding binder, fully mixing, and slowly adding the materials into a granulator to prepare spherical particles; drying and sieving to obtain pesticide fertilizer particles with uniform particle size;
B. wrapping the coating layer: dissolving the coating agent by using water or a recyclable volatile organic solvent, uniformly mixing, uniformly spraying the coating agent on the surfaces of the pesticide-fertilizer particles by using a boiling drying spraying device, and drying to obtain coated pesticide-fertilizer particles;
C. wrapping a soil improvement layer: and C, uniformly mixing the microbial agent, the gamma-polyglutamic acid and a proper amount of water, adding a proper amount of starch, uniformly mixing to obtain a mixture bacterial slurry, uniformly spraying the bacterial slurry on the surface of the coated pesticide-fertilizer particles prepared in the step B by using a boiling drying spraying device, and drying to obtain the controlled-release eucalyptus herbicide-fertilizer particles.
The invention also provides application of the controlled-release eucalyptus herbicide fertilizer granules in eucalyptus planting and weeding.
Further, the application specifically comprises that a crescent fertilizing ditch which is 25-35cm long, 15-25cm wide and 5-8cm deep is arranged at a position 20-50cm away from the root of the fast-growing eucalyptus seedling in the upward slope direction, or a fertilizing ditch which is 40-60cm long, 20-40cm wide and 8-10cm deep is arranged between water dripping lines of old plants, the herbicide fertilizer is scattered into the ditch, and soil is covered; the use amount of the controlled-release eucalyptus herbicide fertilizer granules is calculated by the effective component amount of the hexazinone: eucalyptus seedlings (young forest tending period) 0.2-0.5 g/plant, and older plants 0.6-1.3 g/plant.
In view of the above, the present invention has the following remarkable effects:
(1) according to the invention, the enclosed herbicide hexazinone and the fertilizer are scientifically and reasonably combined together, and a sustained-release coating technology is combined, so that the purpose of normally fertilizing eucalyptus is achieved, various forest weeds can be effectively prevented and removed, the fertilizer loss caused by fertilizer competition between weeds and eucalyptus is reduced, and the effective utilization rate of the fertilizer is improved on the premise of ensuring the safety of the pesticide fertilizer to eucalyptus.
(2) The invention is also provided with a soil improvement layer outside the coating layer. The reasonable addition of the microbial agent, especially bacillus microbe, to the fertilizer can effectively improve the unbalance of soil microbial flora caused by continuous cropping or single planting structure, inhibit soil-borne diseases, activate soil nutrients, and increase the content of effective components in soil, especially the content of medium and trace nutrients. Thereby achieving the soil improvement effects of improving soil flora, increasing soil fertility and the like. The gamma-polyglutamic acid has the characteristics of excellent film forming property, plasticity, cohesiveness, moisture retention, biodegradability and the like, and can be used as a soil humectant and a fertility intensifier, so that the water-storing capacity of soil can be effectively enhanced, the nutrient absorption of crops is promoted, the fertilizer utilization rate is increased, the yield is increased, the quality is improved, and the stress resistance of the crops is improved. The organic combination of the microbial inoculum and the gamma-polyglutamic acid can effectively improve the soil microbial community structure of the eucalyptus woodland and improve the water and fertilizer retention performance of the soil. The microbial agent and the gamma-polyglutamic acid are coated on the outer layer of the pesticide fertilizer, so that the pesticide fertilizer is quickly and fully released, and the application effect is further improved. In addition, the coating layer can effectively isolate the pesticide-fertilizer core from the microbial agent, so that the potential influence of the fertilizer or the active ingredients of the herbicide in the pesticide-fertilizer core on the microbial activity is avoided.
(3) The invention takes the microorganisms, the gamma-polyglutamic acid, the humic acid and the seaweed fermentation product added in the herbicide fertilizer granules as soil conditioners, can effectively improve the soil of the forest land, improve the microbial community structure of the soil and improve the water and fertilizer retention performance of the soil, thereby realizing the effect of one fertilizer with multiple purposes.
(4) Because the herbicide fertilizer granules have better weed control effect and longer weed control time, the management cost of eucalyptus planting managers in the aspect of weeding can be effectively reduced, the purpose of reducing the use amount of pesticide and fertilizer is achieved, and the management of eucalyptus planting, quality improvement and efficiency improvement are effectively assisted.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more concise and clear, the present invention is described with reference to the following specific examples, but the present invention is by no means limited to these examples. The following are only preferred embodiments of the present invention, which are intended to illustrate the present invention and should not be construed as limiting the scope of the present invention. It should be understood that any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The specific preparation method of the seaweed fermentation product used in this example was: mixing kelp, brown algae, gulfweed and other large-scale seaweeds or leftover materials after deep processing with cellulose decomposition bacteria and acidic protein decomposition bacteria, adjusting the carbon-nitrogen ratio to be within the range of 25: 1-30: 1, stacking the materials into a stack, covering a plastic film for anaerobic fermentation, and controlling the stack temperature to be 55-60 ℃ (stack temperature is larger than 60 ℃ and stack turning treatment is carried out). Anaerobic fermentation for about 30-40 days, uncovering the plastic film, exposing the material to air, and performing facultative aerobic fermentation for 10-15 days. After fermentation, drying, dehydrating and crushing the fermented product for later use.
And (3) other raw materials:
the effective viable count of the bacillus subtilis is more than or equal to 1000 hundred million cfu/g; the effective viable count of the bacillus licheniformis is more than or equal to 1000 hundred million cfu/g; the effective viable count of the bacillus mucilaginosus is more than or equal to 1000 hundred million cfu/g;
gamma-polyglutamic acid with molecular weight of 20000.
Example 1
The controlled-release eucalyptus herbicide fertilizer granule comprises the following components in percentage by mass:
component name Mass percent (%)
Hexazinones 0.04
Urea 10
Potassium dihydrogen phosphate 20
Humic acid 10
Fermented product of seaweed 5
Vegetable gum 2
Bentonite clay 51.74
Arabic gum 1.0
Bacillus subtilis 0.02
Gamma-polyglutamic acid 0.2
The preparation method of the controlled-release eucalyptus herbicide fertilizer granule comprises the following steps:
A. preparing a pesticide fertilizer core: the hexazinone, the urea, the monopotassium phosphate, the humic acid, the seaweed fermentation product and the bentonite are crushed and uniformly mixed, then the vegetable gum is added to be used as a binder, and after the mixture is fully mixed, the material is slowly added into a granulator to prepare spherical particles. Boiling, drying and sieving to obtain pesticide fertilizer particles with uniform particle size;
B. wrapping the coating layer: dissolving Arabic gum with a certain amount of water, uniformly mixing, uniformly spraying the coating agent on the surfaces of the pesticide-fertilizer particles by using a boiling drying spraying device, and drying to obtain coated pesticide-fertilizer particles;
C. wrapping a soil improvement layer: mixing a small amount of starch and water according to the weight ratio of 1: and (4) mixing according to the proportion of 25, heating to boil, uniformly stirring, cooling the mixture to room temperature, uniformly mixing the bacillus subtilis and the gamma-polyglutamic acid with the mixture to obtain mixture bacterial slurry, and uniformly spraying the bacterial slurry on the surface of the particle prepared in the step (B) by utilizing boiling drying spraying equipment. Drying to obtain the controlled-release eucalyptus weeding pesticide-fertilizer granules.
The nutrient content of the sustained and controlled release fertilizer obtained in the embodiment is N: P2O5:K2O =4:11:7, can be used as a base fertilizer for seedling planting, and the using method comprises the following steps: a crescent fertilizing ditch which is 30cm long, 20cm wide and 5-8cm deep is formed at a position 30cm away from the upward slope direction of the roots of the fast-growing eucalyptus seedlings, the weeding pesticide fertilizer is spread in the ditch, the dosage and the fertilizing amount of the hexazinone are comprehensively considered, the dosage of the pesticide fertilizer is 500g per plant, and soil covering is carried out.
Example 2
The controlled-release eucalyptus herbicide fertilizer granule comprises the following components in percentage by mass:
component name Mass percent (%)
Hexazinones 0.08
Ammonium chloride 13
Monoammonium phosphate 9
Potassium sulfate 13
Humic acid 12
Fermented product of seaweed 6
Animal glue 1.5
Bentonite clay 44.3
Gelatin 0.8
Bacillus licheniformis 0.03
Gamma-polyglutamic acid 0.3
The preparation method of the controlled-release eucalyptus herbicide fertilizer granule comprises the following steps:
A. preparing a pesticide fertilizer core: pulverizing hexazinone, ammonium chloride, monoammonium phosphate, potassium sulfate, humic acid, seaweed fermentation product and bentonite, uniformly mixing, adding animal glue as a binder, fully mixing, slowly adding the materials into a granulator to prepare spherical particles, boiling, drying and sieving to obtain medicinal fertilizer particles with uniform particle size;
B. wrapping the coating layer: dissolving gelatin in a certain amount of water, uniformly mixing, uniformly spraying the coating agent on the surfaces of the pesticide-fertilizer granules by using a boiling drying spraying device, and drying to obtain coated pesticide-fertilizer granules;
C. wrapping a soil improvement layer: mixing a small amount of starch and water according to the weight ratio of 1: and (4) mixing according to the proportion of 25, heating to boil, uniformly stirring, cooling the mixture to room temperature, uniformly mixing the bacillus licheniformis and the gamma-polyglutamic acid to obtain mixture bacterial slurry, and uniformly spraying the bacterial slurry on the surface of the particle prepared in the step (B) by utilizing boiling drying spraying equipment. Drying to obtain the controlled-release eucalyptus weeding pesticide-fertilizer granules.
The nutrient content of the sustained and controlled release fertilizer obtained in the embodiment is N: P2O5:K2O =4:5:7, and the using method comprises the following steps: a crescent fertilizing ditch which is 30cm long, 20cm wide and 5-8cm deep is formed at the position 30cm away from the upward slope direction of the root of the fast-growing eucalyptus seedling, the weeding pesticide fertilizer is scattered in the ditch, the dosage and the fertilizing amount of the hexazinone are comprehensively considered, the dosage of the pesticide fertilizer in the embodiment is 500g per plant, and the soil is covered.
Example 3
The controlled-release eucalyptus herbicide fertilizer granule comprises the following components in percentage by mass:
component name Mass percent (%)
Hexazinones 0.12
Ammonium sulfate 11
Diammonium phosphate 19
Potassium chloride 10
Humic acid 14
Fermented product of seaweed 7
Polyethylene glycol 3
Attapulgite powder 34.24
Polyvinyl alcohol 1.2
Bacillus mucilaginosus 0.04
Gamma-polyglutamic acid 0.4
The preparation method of the controlled-release eucalyptus herbicide fertilizer granule comprises the following steps:
A. preparing a pesticide fertilizer core: pulverizing hexazinone, ammonium sulfate, diammonium phosphate, potassium chloride, humic acid, seaweed fermentation product and attapulgite powder, uniformly mixing, adding polyethylene glycol as a binder, fully mixing, slowly adding the materials into a granulator to prepare spherical particles, and sieving after boiling drying to obtain pesticide-fertilizer particles with uniform particle size;
B. wrapping the coating layer: dissolving polyvinyl alcohol with a certain amount of hot water, uniformly mixing, uniformly spraying the coating agent on the surfaces of the pesticide-fertilizer particles by using a boiling drying spraying device, and drying to obtain coated pesticide-fertilizer particles;
C. wrapping a soil improvement layer: mixing a small amount of starch and water according to the weight ratio of 1: and (4) mixing according to a ratio of 25, heating to boil, uniformly stirring, cooling the mixture to room temperature, uniformly mixing the bacillus mucilaginosus, the gamma-polyglutamic acid and a proper amount of water to obtain mixture bacterial pulp, and uniformly spraying the bacterial pulp on the surfaces of the particles prepared in the step (B) by using a boiling drying spraying device. Drying to obtain the controlled-release eucalyptus weeding pesticide-fertilizer granules.
The nutrient content of the sustained and controlled release fertilizer obtained in the embodiment is N: P2O5:K2O =6:10:6, can be used as a base fertilizer for seedling planting, and the using method comprises the following steps: a crescent fertilizing ditch which is 30cm long, 20cm wide and 5-8cm deep is formed at the position 30cm away from the upward slope direction of the root of the fast-growing eucalyptus seedling, the weeding pesticide fertilizer is scattered in the ditch, the dosage and the fertilizing amount of the hexazinone are comprehensively considered, the dosage of the pesticide fertilizer in the embodiment is 400g per plant, and the fast-growing eucalyptus seedling is covered with soil.
Example 4
The controlled-release eucalyptus herbicide fertilizer granule comprises the following components in percentage by mass:
component name Mass percent (%)
Hexazinones 0.16
Urea 28
Potassium sulfate 7
Potassium dihydrogen phosphate 10
Humic acid 16
Fermented product of seaweed 8
Vegetable gum 1.5
Animal glue 0.5
Kaolin clay 20
Bentonite clay Make up the balance
Cyclodextrin 0.75
Bacillus subtilis 0.05
Gamma-polyglutamic acid 0.5
The preparation method of the controlled-release eucalyptus herbicide fertilizer granule comprises the following steps:
A. preparing a pesticide fertilizer core: pulverizing hexazinone, urea, potassium sulfate, monopotassium phosphate, humic acid, seaweed fermentation product, kaolin and bentonite, uniformly mixing, adding plant gum and animal gum as binders, slowly adding the materials into a granulator after fully mixing to prepare spherical particles, and sieving after boiling drying to obtain medicinal fertilizer particles with uniform particle size;
B. wrapping the coating layer: dissolving cyclodextrin with a certain amount of water, mixing uniformly, and spraying the coating agent on the surface of the pesticide fertilizer particles uniformly by using a boiling drying spraying device. Drying to obtain coated pesticide-fertilizer granules;
C. wrapping a soil improvement layer: mixing a small amount of starch and water according to the weight ratio of 1: and (4) mixing at a ratio of 25, heating to boil, uniformly stirring, cooling the mixture to room temperature, uniformly mixing the bacillus subtilis, the gamma-polyglutamic acid and a proper amount of water to obtain mixture bacterial slurry, and uniformly spraying the bacterial slurry on the surfaces of the particles prepared in the step (B) by using boiling drying spraying equipment. Drying to obtain the controlled-release eucalyptus weeding pesticide-fertilizer granules.
The nutrient content of the sustained and controlled release fertilizer obtained in the embodiment is N: P2O5:K2O =13:5:7, can be used in eucalyptus forests with low fertility, and the using method comprises the following steps: a crescent fertilizing ditch which is 30cm long, 20cm wide and 5-8cm deep is formed at the position 30cm away from the upward slope direction of the root of the fast-growing eucalyptus seedling, the weeding pesticide fertilizer is scattered in the ditch, the dosage and the fertilizing amount of the hexazinone are comprehensively considered, the dosage of the pesticide fertilizer in the embodiment is 250 and 300g per plant, and the soil is covered.
Example 5
The controlled-release eucalyptus herbicide fertilizer granule comprises the following components in percentage by mass:
component name Mass percent (%)
Hexazinones 0.21
Urea 22
Diammonium phosphate 15
Potassium sulfate 13
Humic acid 18
Fermented product of seaweed 9
Vegetable gum 0.5
Polyethylene glycol 2
Kaolin clay 15
Attapulgite powder Make up the balance
Diphenylmethane diisocyanate 0.9
Bacillus subtilis 0.01
Bacillus licheniformis 0.01
Gamma-polyglutamic acid 0.5
The preparation method of the controlled-release eucalyptus herbicide fertilizer granule comprises the following steps:
A. preparing a pesticide fertilizer core: pulverizing and uniformly mixing hexazinone, urea, diammonium phosphate, potassium sulfate, humic acid, seaweed fermentation product, kaolin and attapulgite powder, adding vegetable gum and polyethylene glycol as binders, slowly adding the materials into a granulator after fully mixing to prepare spherical particles, and sieving after boiling drying to obtain pesticide-fertilizer particles with uniform particle size;
B. wrapping the coating layer: dissolving diphenylmethane diisocyanate by using a certain amount of soybean polyol, uniformly mixing, uniformly spraying the coating agent on the surfaces of the pesticide-fertilizer particles by using a boiling drying spraying device, and drying to obtain coated pesticide-fertilizer particles;
C. wrapping a soil improvement layer: mixing a small amount of starch and water according to the weight ratio of 1: and B, mixing the components according to a ratio of 25, heating to boil, uniformly stirring, cooling the mixture to room temperature, uniformly mixing the bacillus subtilis, the bacillus licheniformis and the gamma-polyglutamic acid with a proper amount of water to obtain mixture bacterial slurry, uniformly spraying the bacterial slurry on the surface of the particle prepared in the step B by using a boiling drying spraying device, and drying to obtain the controlled-release eucalyptus herbicide fertilizer particle.
The nutrient content of the sustained and controlled release fertilizer obtained in the embodiment is N: P2O5:K2O =13:8:7, can be used in the eucalyptus additional manuring, and the using method comprises the following steps: a crescent fertilizing ditch with the length of 30cm, the width of 20cm and the depth of 5-8cm or a fertilizing ditch with the length of 50cm, the width of 30cm and the depth of 8-10cm is arranged at a position 30cm away from the upward slope direction of the root of the seedling of the fast-growing eucalyptus, and the herbicide fertilizer is scattered in the ditchThe dosage and the fertilizing amount of the hexazinone are comprehensively considered, and the dosage of the pesticide fertilizer in the embodiment is as follows: the nursery period of the young forest is 200-.
Example 6
The controlled-release eucalyptus herbicide fertilizer granule comprises the following components in percentage by mass:
component name Mass percent (%)
Hexazinones 0.12
Ammonium chloride 21
Monoammonium phosphate 18
Potassium chloride 16
Humic acid 20
Fermented product of seaweed 10
Animal glue 0.5
Polyethylene glycol 1.5
Bentonite clay 10
Attapulgite powder Make up the balance
Polypropylene carbonate 1.1
Bacillus subtilis 0.02
Bacillus mucilaginosus 0.01
Gamma-polyglutamic acid 0.4
The preparation method of the controlled-release eucalyptus herbicide fertilizer granule comprises the following steps:
A. preparing a pesticide fertilizer core: pulverizing hexazinone, ammonium chloride, monoammonium phosphate, potassium chloride, humic acid, seaweed fermentation product, bentonite and attapulgite powder, uniformly mixing, adding animal glue and polyethylene glycol as binders, slowly adding the materials into a granulator after fully mixing to prepare spherical particles, and sieving after boiling drying to obtain medicinal fertilizer particles with uniform particle size;
B. wrapping the coating layer: dissolving polypropylene carbonate by using a certain amount of ethyl acetate, uniformly mixing, uniformly spraying the coating agent on the surfaces of the pesticide-fertilizer particles by using a boiling drying spraying device, and drying to obtain coated pesticide-fertilizer particles;
C. wrapping a soil improvement layer: mixing a small amount of starch and water according to the weight ratio of 1: and (4) mixing according to the proportion of 25, heating to boil, uniformly stirring, cooling the mixture to room temperature, uniformly mixing the bacillus subtilis, the bacillus mucilaginosus, the gamma-polyglutamic acid and a proper amount of water to obtain mixture bacterial pulp, and uniformly spraying the bacterial pulp on the surfaces of the particles prepared in the step (B) by utilizing a boiling drying spraying device. Drying to obtain the controlled-release eucalyptus weeding pesticide-fertilizer granules.
The nutrient content of the sustained and controlled release fertilizer obtained in the embodiment is N: P2O5:K2O =8:11:10, can be used in top dressing of eucalyptus, and can effectively promote the height of eucalyptus plants. The using method comprises the following steps: fertilizing furrows with the length of 50cm, the width of 30cm and the depth of 8-10cm are arranged between water dripping lines of the old plants, weeding pesticide fertilizer is scattered in the furrows, the dosage and the fertilizing amount of the hexazinone are comprehensively considered, the dosage of the pesticide fertilizer is 750 plus 1000 g/plant, and then the plants are covered with soil.
Example 7
The controlled-release eucalyptus herbicide fertilizer granule comprises the following components in percentage by mass:
component name Mass percent (%)
Hexazinones 0.21
Urea 31
Diammonium phosphate 9
Potassium sulfate 20
Humic acid 10
Fermented product of seaweed 5
Polyethylene glycol 2
Attapulgite powder 20.25
Polyvinyl alcohol 1.0
Cyclodextrin 1.2
Bacillus licheniformis 0.02
Bacillus mucilaginosus 0.02
Gamma-polyglutamic acid 0.3
The preparation method of the controlled-release eucalyptus herbicide fertilizer granule comprises the following steps:
A. preparing a pesticide fertilizer core: pulverizing hexazinone, urea, diammonium phosphate, potassium sulfate, humic acid, seaweed fermentation product and attapulgite powder, uniformly mixing, adding polyethylene glycol as a binder, fully mixing, slowly adding the materials into a granulator to prepare spherical particles, and sieving after boiling drying to obtain pesticide-fertilizer particles with uniform particle size;
B. wrapping the coating layer: dissolving polyvinyl alcohol with a certain amount of hot water, uniformly mixing, uniformly spraying the coating agent on the surfaces of the pesticide-fertilizer particles by using a boiling drying spraying device, and drying to obtain coated pesticide-fertilizer particles;
C. wrapping a soil improvement layer: mixing a small amount of starch and water according to the weight ratio of 1: and (4) mixing according to the proportion of 25, heating to boil, uniformly stirring, cooling the mixture to room temperature, uniformly mixing the bacillus licheniformis, the bacillus mucilaginosus, the gamma-polyglutamic acid and a proper amount of water to obtain mixture bacterial pulp, and uniformly spraying the bacterial pulp on the surfaces of the particles prepared in the step (B) by utilizing a boiling drying spraying device. Drying to obtain the controlled-release eucalyptus weeding pesticide-fertilizer granules.
The nutrient content of the sustained and controlled release fertilizer obtained in the embodiment is N: P2O5:K2O =15:5:11, can be used in top dressing of eucalyptus, and can effectively promote thickening of eucalyptus. The using method comprises the following steps: fertilizing furrows with the length of 50cm, the width of 30cm and the depth of 8-10cm are arranged between water dripping lines of the old plants, weeding pesticide fertilizer is scattered in the furrows, the dosage and the fertilizing amount of the hexazinone are comprehensively considered, the dosage of the pesticide fertilizer in the embodiment is 500-600 g/plant, and then the plants are covered with soil.
Example 8
The controlled-release eucalyptus herbicide fertilizer granule comprises the following components in percentage by mass:
component name Mass percent (%)
Hexazinones 0.2
Ammonium chloride 46
Monoammonium phosphate 8
Potassium chloride 11
Humic acid 20
Fermented product of seaweed 10
Vegetable gum 0.5
Animal glue 0.5
Polyethylene glycol 1.0
Kaolin clay 1.25
Arabic gum 0.6
Gelatin 0.4
Bacillus subtilis 0.01
Bacillus licheniformis 0.02
Bacillus mucilaginosus 0.02
Gamma-polyglutamic acid 0.5
The preparation method of the controlled-release eucalyptus herbicide fertilizer granule comprises the following steps:
A. preparing a pesticide fertilizer core: pulverizing hexazinone, ammonium chloride, monoammonium phosphate, potassium chloride, humic acid, seaweed fermentation product and kaolin, uniformly mixing, adding vegetable gum, animal gum and polyethylene glycol as binders, slowly adding the materials into a granulator after fully mixing to prepare spherical particles, and sieving after boiling drying to obtain pesticide-fertilizer particles with uniform particle size;
B. wrapping the coating layer: dissolving arabic gum and gelatin with a certain amount of water, uniformly mixing, uniformly spraying the coating agent on the surfaces of the pesticide-fertilizer granules by using a boiling drying spraying device, and drying to obtain coated pesticide-fertilizer granules;
C. wrapping a soil improvement layer: mixing a small amount of starch and water according to the weight ratio of 1: and (4) mixing according to the proportion of 25, heating to boil, uniformly stirring, cooling the mixture to room temperature, uniformly mixing the bacillus subtilis, the bacillus licheniformis, the bacillus mucilaginosus, the gamma-polyglutamic acid and a proper amount of water to obtain mixture bacterial pulp, and uniformly spraying the bacterial pulp on the surfaces of the particles prepared in the step (B) by using a boiling drying spraying device. Drying to obtain the controlled-release eucalyptus weeding pesticide-fertilizer granules;
the nutrient content of the sustained and controlled release fertilizer obtained in the embodiment is N: P2O5:K2O =13:5:7, can be used in top dressing of eucalyptus, and can effectively promote thickening of eucalyptus. Can be used as a base fertilizer for seedling planting, and the using method comprises the following steps: a crescent fertilizing ditch which is 30cm long, 20cm wide and 5-8cm deep is formed at the position 30cm away from the upward slope direction of the root of the fast-growing eucalyptus seedling, the weeding pesticide fertilizer is scattered in the ditch, the dosage and the fertilizing amount of the hexazinone are comprehensively considered, the dosage of the pesticide fertilizer in the embodiment is 200 and 250g per plant, and the soil is covered.
Example 9
The nitrogen release rate of the sustained and controlled release fertilizer in some embodiments of the invention is determined by referring to the national standard (GB/T) 23348-2009 sustained release fertilizer.
The samples of examples 1, 4, 6, 7 and 8 were used as test samples, and were used as ordinary fertilizers having nutrient contents equivalent to those of the test samples (no gamma-polyglutamic acid, humic acid, seaweed fermentation product, microbial agent and coating agent were added during granulation, and the balance of the excess was made up with an inert filler such as kaolin, bentonite or attapulgite powder, and no coating treatment was performed).
The proportion of the general fertilizer remarks is N: P2O5:K2And (4) proportioning of O.
TABLE 1 comparison of nitrogen nutrient release rates of slow/controlled release fertilizers and general fertilizers according to some examples of the present invention
Figure DEST_PATH_IMAGE001
Example 10
The samples of examples 1, 2, 3, 5 and 6 were used as samples, and the common fertilizer with corresponding nutrient content was used as a sample control (the preparation method of the common fertilizer is shown in example 9, and the ratio of the notes of the common fertilizer is N: P2O5:K2O proportion) and a blank control is additionally arranged, and the control effect of the test sample on weeds and the safety of the test sample on eucalyptus plants under corresponding application conditions are measured.
(1) The method for testing the control effect on weeds comprises the following steps: three replicates were set for each sample treatment and control treatment, each replicate containing two eucalyptus plants. Dividing each eucalyptus into 1 × 1m areas around each eucalyptus, and cleaning weeds around the plants by using a solution of acid and glyphosate. After the cleaning work is finished, the pesticide fertilizer or the contrast common fertilizer is applied to the ground according to the use method. After soil covering, uniformly spreading a mixture of bidens triphylla and couch grass seeds (25 seeds of each weed) in an area of 1 square meter around each eucalyptus plant, and covering a layer of fine soil. Finally, quantitative water is poured. The germination of each treated weed was observed 7 days, 15 days and 30 days after the treatment.
(2) And (3) safety test: and (4) observation.
TABLE 2 controlling effect of the controlled release fertilizer of some examples of the present invention on weeds and safety to eucalyptus
Figure 995414DEST_PATH_IMAGE002
Example 11
2 treatments are set according to different fertilizer varieties, namely treatment of a base fertilizer in one embodiment 8 and treatment of an additional fertilizer in another embodiment 6, and treatment of a common fertilizer in another embodiment 8 and treatment of a base fertilizer in another embodiment 6, wherein the preparation method of the common fertilizer is shown in the embodiment 9, afforestation measures are carried out according to a conventional mode, the base fertilizer is applied during field planting, and the fertilizing amount ensures that the total nutrient content of the fertilizers applied in each treatment is the same. Applying additional fertilizer once at 1.0a of tree age, making crescent fertilization ditch 30cm long, 20cm wide and 5-8cm deep at 30cm upward slope of fast-growing eucalyptus seedling root, spreading quantitative herbicide fertilizer in the ditch, and covering with soil. The plant height and diameter are measured 3 months (0.2 a) after planting, and then the growth index of each eucalyptus treatment is investigated every 0.5 a.
TABLE 3 Effect of different treatments on Eucalyptus Tree height and Tree diameter growth
Figure 916097DEST_PATH_IMAGE003
Example 12
The application amount of the fertilizer is calculated by 1000 g/strain by taking example 6 as a test sample, and comparing the effects of the two fertilizers on soil improvement by taking a common fertilizer (without coating, the microbial agent is directly mixed and granulated with a pesticide fertilizer) containing the same nutrient content, microbial agent dosage and gamma-polyglutamic acid content as a reference. Repeating the treatment for 3 times, taking a soil sample 60 days after the additional fertilization, and detecting the pH value, the EC value and the soil particle size of the soil. Wherein the soil particle size is measured to identify the soil texture. The dividing method of the soil texture refers to the classification standard of soil made in the United states: 1000-2000 μm is extra coarse sand; 500-1000 μm coarse sand; 250-500 mu m is medium sand; 100-250 is fine sand; 50-100 μm is superfine sand; 2-50 μm is powder; less than 2 μm is a sticky particle.
TABLE 4 Effect of different fertiliser treatments on the physicochemical Properties of the soil
Figure 763836DEST_PATH_IMAGE004
The data show that the addition of the microbial agent and the gamma-polyglutamic acid into the pesticide fertilizer or the fertilizer can stabilize the pH value of the soil to a certain extent, slow down the acidification process of the soil, increase the content of clay grains and powder grains of the soil and improve the air permeability, water retention and fertilizer retention performance of the soil to a certain extent. And the microbial agent, the gamma-polyglutamic acid and the pesticide fertilizer core are separated by the coating material, so that the influence of the pesticide fertilizer core on the microbial activity can be effectively avoided, and meanwhile, the gamma-polyglutamic acid can exert the effect on the outer layer of the fertilizer more quickly.

Claims (10)

1. A sustained and controlled release eucalyptus weeding medicinal fertilizer granule is characterized in that,
the herbicide fertilizer granules comprise the following components in percentage by mass: 0.04-0.21% of hexazinone, 30-65% of fertilizer, 0.02-0.05% of microbial agent, 0.2-0.5% of gamma-polyglutamic acid, 10-20% of humic acid, 5-10% of seaweed fermentation product, 0.75-1.2% of coating agent and the balance of auxiliary materials.
2. The controlled-release eucalyptus herbicidal fertilizer granule as set forth in claim 1,
the herbicide fertilizer granules comprise a pesticide fertilizer core, a coating layer and a soil improvement layer which are sequentially arranged from inside to outside, wherein the pesticide fertilizer core consists of hexazinone, a fertilizer, humic acid, seaweed leavening and auxiliary materials; the coating layer comprises a coating agent; the soil improvement layer comprises a microbial agent and gamma-polyglutamic acid.
3. The controlled-release eucalyptus herbicidal fertilizer granule as set forth in claim 1,
the fertilizer comprises one or a combination of more of urea, ammonium chloride, ammonium sulfate, monoammonium phosphate, diammonium phosphate, potassium chloride, potassium sulfate, monopotassium phosphate and the like.
4. The controlled-release eucalyptus herbicide fertilizer granule as claimed in claim 1, wherein the auxiliary material comprises one or a mixture of two of a binder and a filler;
the binder is one or a mixture of more of vegetable gum, animal gum and polyethylene glycol;
the filler is one or a mixture of more of kaolin, bentonite and attapulgite.
5. The controlled-release eucalyptus herbicidal fertilizer granule as set forth in claim 1,
the coating agent is one or a mixture of more of Arabic gum, polyvinyl alcohol, cyclodextrin, diphenylmethane diisocyanate and polypropylene carbonate.
6. The controlled release eucalyptus herbicidal fertilizer granule as set forth in claim 2,
the mass ratio of the coating agent to the pesticide fertilizer core is controlled to be 1:80-1: 140.
7. The controlled-release eucalyptus herbicidal fertilizer granule as set forth in claim 1,
the microbial agent is one or a mixture of more of bacillus subtilis, bacillus licheniformis and bacillus amyloliquefaciens.
8. The method for preparing the controlled-release eucalyptus herbicide fertilizer granule as claimed in any one of claims 1 to 7,
the method comprises the following steps:
A. preparing a pesticide fertilizer core: pulverizing hexazinone, fertilizer, humic acid, seaweed fermentation product and filler, uniformly mixing, adding binder, fully mixing, and slowly adding the materials into a granulator to prepare spherical particles; drying and sieving to obtain pesticide fertilizer particles with uniform particle size;
B. wrapping the coating layer: dissolving the coating agent by using water or a recyclable volatile organic solvent, uniformly mixing, uniformly spraying the coating agent on the surfaces of the pesticide-fertilizer particles by using a boiling drying spraying device, and drying to obtain coated pesticide-fertilizer particles;
C. wrapping a soil improvement layer: and C, uniformly mixing the microbial agent, the gamma-polyglutamic acid and a proper amount of water, adding a proper amount of starch, uniformly mixing to obtain a mixture bacterial slurry, uniformly spraying the bacterial slurry on the surface of the coated pesticide-fertilizer particles prepared in the step B by using a boiling drying spraying device, and drying to obtain the controlled-release eucalyptus herbicide-fertilizer particles.
9. The application of the controlled-release eucalyptus herbicide-fertilizer granules as claimed in any one of claims 1 to 7 in eucalyptus planting and weeding.
10. The application of claim 9, wherein a crescent fertilizing ditch 25-35cm long, 15-25cm wide and 5-8cm deep is opened 20-50cm up-slope from the root of the fast-growing eucalyptus seedling or a fertilizing ditch 40-60cm long, 20-40cm wide and 8-10cm deep is opened between the water dripping lines of the old plant, the herbicide fertilizer is scattered into the ditches, and soil is covered; the use amount of the controlled-release eucalyptus herbicide fertilizer granules is calculated by the effective component amount of the hexazinone: eucalyptus seedlings (young forest tending period) 0.2-0.5 g/plant, and older plants 0.6-1.3 g/plant.
CN202110733795.7A 2021-06-30 2021-06-30 Slow-release and controlled-release eucalyptus weeding medicinal fertilizer granule and preparation method thereof Pending CN113336597A (en)

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