CN114196412A - Soil conditioner capable of improving micro-domain environment around crop roots in saline-alkali soil farmland - Google Patents
Soil conditioner capable of improving micro-domain environment around crop roots in saline-alkali soil farmland Download PDFInfo
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- CN114196412A CN114196412A CN202010979370.XA CN202010979370A CN114196412A CN 114196412 A CN114196412 A CN 114196412A CN 202010979370 A CN202010979370 A CN 202010979370A CN 114196412 A CN114196412 A CN 114196412A
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- 239000002689 soil Substances 0.000 title claims abstract description 92
- 239000003513 alkali Substances 0.000 title claims abstract description 55
- 239000003516 soil conditioner Substances 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 13
- 108010020346 Polyglutamic Acid Proteins 0.000 claims abstract description 12
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 12
- 229920002643 polyglutamic acid Polymers 0.000 claims abstract description 12
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 11
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims abstract description 10
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000004021 humic acid Substances 0.000 claims abstract description 10
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims abstract description 10
- 235000019796 monopotassium phosphate Nutrition 0.000 claims abstract description 10
- 239000003077 lignite Substances 0.000 claims abstract description 8
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 claims abstract description 8
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims abstract description 8
- 239000003607 modifier Substances 0.000 claims description 28
- 210000003608 fece Anatomy 0.000 claims description 2
- 239000010871 livestock manure Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 14
- 238000011161 development Methods 0.000 abstract description 14
- 230000012010 growth Effects 0.000 abstract description 14
- 235000015097 nutrients Nutrition 0.000 abstract description 14
- 230000001965 increasing effect Effects 0.000 abstract description 13
- 150000003839 salts Chemical class 0.000 abstract description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 9
- 239000011574 phosphorus Substances 0.000 abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 9
- 230000001737 promoting effect Effects 0.000 abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- 235000016709 nutrition Nutrition 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000035764 nutrition Effects 0.000 abstract description 4
- 239000005648 plant growth regulator Substances 0.000 abstract description 4
- 235000015816 nutrient absorption Nutrition 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000011282 treatment Methods 0.000 description 17
- 240000008042 Zea mays Species 0.000 description 12
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 12
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 12
- 235000005822 corn Nutrition 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 230000018109 developmental process Effects 0.000 description 10
- 230000006872 improvement Effects 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 239000003337 fertilizer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000011033 desalting Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 2
- 230000002786 root growth Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 208000003643 Callosities Diseases 0.000 description 1
- 239000004129 EU approved improving agent Substances 0.000 description 1
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- RDXARWSSOJYNLI-UHFFFAOYSA-N [P].[K] Chemical compound [P].[K] RDXARWSSOJYNLI-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000003630 growth substance Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000010496 root system development Effects 0.000 description 1
- 239000002688 soil aggregate Substances 0.000 description 1
- 239000002681 soil colloid Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- 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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- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
- A01N37/46—N-acyl derivatives
-
- 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
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/26—Phosphorus; Compounds thereof
-
- 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
- C09K2101/00—Agricultural use
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- 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
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
Abstract
The invention relates to the fields of soil, organic and inorganic chemistry and the like, in particular to a soil conditioner which can reduce the salt content of rhizosphere soil, reduce the alkalization degree, improve the nutrient environment and promote the growth and development of crops and can improve the micro-area environment around the root systems of the crops in saline-alkali soil lands. According to weight percentage, the aluminum sulfate accounts for 15-35%, the phosphogypsum accounts for 30-55%, the polyacrylamide accounts for 1-5%, the lignite humic acid accounts for 10-30%, the monopotassium phosphate accounts for 1-4%, the polyglutamic acid accounts for 1-3%, and the rooting powder accounts for 0.1-0.2%. The conditioner of the invention improves the nutrient utilization rate of nitrogen, phosphorus and other nutrients and strengthens nutrition by reducing the salt content and pH value of soil around the root system of the crop in the saline-alkali land, improving the physicochemical properties of soil structure and the soil nutrient environment, enhancing the stress resistance and promoting the growth and development by relying on monopotassium phosphate as a plant growth regulator, promoting rooting by relying on rooting powder, promoting the growth and development of the root system by relying on polyglutamic acid and the like, further promoting the nutrient absorption of the crop, promoting the growth and development of the crop and achieving the purposes of increasing both production and income.
Description
Technical Field
The invention relates to the fields of soil, organic and inorganic chemistry and the like, in particular to a soil conditioner which can reduce the salt content of rhizosphere soil, reduce the alkalization degree, improve the nutritional environment and promote the growth and development of crops and can improve the micro-area environment (rhizosphere) around the root system of the crops in saline-alkali soil.
Background
The saline-alkali soil is an important reserve land in China, and due to the influence of barrier factors such as saline-alkali soil, the yield per unit of crops is not high, and the yield increasing potential is huge. The measures for improving the saline-alkali soil mainly comprise engineering, biological, chemical and other measures. The engineering measures are saline-alkali land treatment measures within the range of the region and the watershed, and after the saline-alkali land engineering treatment measures within the range of the region and the watershed are implemented, the specific measures for saline-alkali land treatment and improvement still depend on biological or chemical measures. As a result of research on improvement of saline-alkali soil by scientists, the water is not used for 1 time when the saline-alkali soil is irrigated for 100 times, but the investment for comprehensively improving the saline-alkali soil by applying the modifying agent is large, and even if the soil with the surface layer of 0-20cm is only improved, the investment for establishing a desalting surface layer is also very high.
In the past, most researches on saline-alkali soil improving agents are to improve saline-alkali soil by using aluminum sulfate and calcium sulfate, and organic matters and polyacrylamide are added; the research on the modifier for the micro-area of the saline-alkali farmland is less, and the modifier is only a mixed modifier of aluminum sulfate or calcium sulfate and organic matters, so that the modifier only has quick-acting or slow-acting effects and cannot combine the quick-acting effect and the slow-acting effect. Because polyacrylamide is not added, the soil structure is not improved, the leaching effect is poor, and the effect is not good; because no rooting powder is added, the root system does not grow well, and the yield per unit of crops is not high; because the polyglutamic acid, a growth promoting substance of a root system, is not added, the root system is not developed well; because the potassium dihydrogen phosphate fertilizer and the crop growth regulator are not added, the crop is dysplastic.
Disclosure of Invention
The invention aims to provide a saline-alkali farmland soil micro-domain modifier which has the function of improving the micro-domain environment around the root system (rhizosphere) of crops in the saline-alkali farmland.
In order to achieve the purpose, the invention adopts the technical scheme that:
the soil conditioner for improving the micro-area environment around the root system of the crop in the saline-alkali soil is prepared from (by weight) aluminum sulfate 15-35%, phosphogypsum 30-55%, polyacrylamide 1-5%, lignite humic acid 10-30%, potassium dihydrogen phosphate 1-4%, polyglutamic acid 1-3% and rooting powder 0.1-0.2%.
Preparation: according to the proportion, the aluminum sulfate, the phosphogypsum, the polyacrylamide, the lignite humic acid, the monopotassium phosphate and the polyglutamic acid of the powder are uniformly mixed with the rooting powder, and then the mixture is sieved by a sieve with the diameter of 5 mm.
The application amount of the micro-domain modifier is 16 kg/mu.
The modifier is used alone or applied together with seed manure after being mixed and stirred evenly.
The invention has the advantages that:
1. the conditioner is prepared by matching and combining a saline-alkali soil conditioner, a plant growth regulator or a growth-promoting root and a root system development promoter, so that the saline-alkali soil conditioner has stronger saline-alkali soil improving effect, integrates the functions of improving soil, improving the rhizosphere micro-area environment of the soil and improving the nutrient utilization rate of the soil into a whole, combines soil improvement and fertilization, achieves a synergistic effect, and simplifies farming operation; the salt content and the pH value of soil around the root system of the crop in the saline-alkali land can be reduced, the content of organic matters in the soil is increased, the physicochemical properties such as the soil structure and the soil nutrient environment are improved, the utilization rate of nutrients such as nitrogen and phosphorus is increased, and the fertilizing period of the fertilizer on the saline-alkali land reaches the fertilizing period and the effective period which the fertilizer in normal soil should have; enhancing nutrition and the like to promote the development of crop root systems, further promoting the absorption of crop nutrients, promoting the growth and development of crops and achieving the purposes of increasing both production and income; the method comprises the following specific steps:
the aluminum sulfate is added into the modifier, and after the modifier is applied to soil, the modifier is hydrolyzed into acid, so that the pH value of the saline-alkali soil can be reduced, the desalting is facilitated, the alkalization degree is reduced, and the saline-alkali soil is further modified; meanwhile, the utilization rate of nitrogen, phosphorus and the like in the soil is improved, and the interaction of the phosphorus, the phosphorus.
The phosphogypsum added in the modifying agent contains acid, so that the pH value of saline-alkali soil can be reduced, and the utilization rate of nitrogen, phosphorus and the like in the soil can be improved; meanwhile, the desalting is facilitated, the alkalization degree is reduced, and the saline-alkali soil is improved; calcium ions in the phosphogypsum can replace sodium ions on the saline-alkali soil colloid, so that the sodium ions enter the soil solution and are leached out of the soil along with irrigation water or rainwater, and the saline-alkali soil is further improved; under the synergistic effect of aluminum sulfate, humic acid, polyacrylamide and polyglutamic acid, the effect is more obvious.
The polyacrylamide added in the improver is a high molecular organic compound, has the function of improving the soil structure, and has better washing and improving effects under the action of various improvers and plant growth regulating and accelerating agents.
The modifier is added with lignite humic acid which can be used as a natural soil structure modifier, not only can agglomerate dispersed soil particles, but also can bond micro-aggregates mutually to promote the formation of a soil aggregate structure, so that the total porosity of soil is improved, the leaching capacity of the soil is improved, the salt and alkali removal is accelerated, and the saline-alkali soil is improved; meanwhile, the pH of the saline-alkali soil can be reduced by humic acid, and the utilization rate of nitrogen, phosphorus and the like in the soil can be improved.
The monopotassium phosphate added in the modifier can be used as a phosphorus-potassium fertilizer and a plant growth regulator, and can enhance the stress resistance of crops and promote growth and development after being applied.
The root powder is added into the modifying agent to promote rooting, and the polyglutamic acid can promote root growth, so that the combined effect of the root powder and the polyglutamic acid is to promote the root growth and quick growth, enhance the nutrient and moisture absorption capacity, further promote the growth and development of crops and achieve the purposes of increasing both production and income.
Description of the drawings:
FIG. 1 shows the effect of the soil micro-domain conditioner for saline-alkali farmland on the corn yield increase provided by the embodiment of the invention.
Detailed Description
The following examples are presented to further illustrate embodiments of the present invention, and it should be understood that the embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
The modifier is applied to the root of crops, embodies in micro-domain modification, and can improve the organic matter content of soil, improve the physical and chemical properties of the soil structure and the soil nutrient environment, improve the utilization rate of nutrients such as nitrogen and phosphorus, enhance the nutrition and the like to promote the development of the root of the crops by reducing the salt content and the pH value of the soil around the root of the crops in the saline-alkali land, further promote the absorption of the nutrients of the crops, promote the growth and the development of the crops and achieve the purposes of increasing the yield and the income. The modifier can be mixed with oral fertilizers or applied independently to form a saline-alkali soil improvement line one year, and the saline-alkali soil improvement line is connected into pieces for many years, so that the saline-alkali soil is comprehensively treated and improved in a sheet shape, the disposable high investment is changed into the scattered multi-year investment, and the modifier can be born by farmers; meanwhile, after the saline-alkali farmland soil micro-domain conditioner is applied, the yield per unit of crops is improved, the quantity of roots and straws is greatly increased, and materials are provided for biological treatment and improvement after the conditioner is applied to the soil through rotary tillage.
Example 1
The modifier comprises the following components: according to the weight percentage, 25 percent of aluminum sulfate, 45 percent of phosphogypsum, 3 percent of polyacrylamide, 24 percent of lignite humic acid, 1.5 percent of monopotassium phosphate, 1.3 percent of polyglutamic acid and 0.2 percent of rooting powder.
According to the proportion, the materials needed in 1 ton of the modifier are weighed, mixed evenly, sieved, weighed and bagged for later use. The application amount is 16 kg/mu.
Example 2
The modifier comprises the following components: 26.60 percent of aluminum sulfate, 47.87 percent of phosphogypsum and 25.53 percent of lignite humic acid.
According to the proportion, the materials needed in 1 ton of the modifier are weighed, mixed evenly, sieved, weighed and bagged for later use. The application amount is 15.04 kg/mu.
Example 3
The modifier comprises the following components: 34.25 percent of aluminum sulfate, 61.64 percent of phosphogypsum and 4.11 percent of polyacrylamide according to weight percentage.
According to the proportion, the materials needed in 1 ton of the modifier are weighed, mixed evenly, sieved, weighed and bagged for later use. The application amount is 11.68 kg/mu.
Application example:
the saline-alkali farmland soil micro-domain conditioner prepared in the embodiment is applied to plain saline-alkali farmlands in Tongshi county of Jilin province, crops are planted to be corns, and the experimental design is as follows:
TABLE 1 design of the experiments
1) After the saline-alkali farmland soil micro-domain conditioner is applied, the change of the physical and chemical properties of the rhizosphere of the soil
After the micro-area soil conditioner for the saline-alkali farmland is applied to soil, the alkalization degree, the salt content and the soil pH of rhizosphere soil are reduced (see table 2).
TABLE 2 Change in physical and chemical properties of soil rhizosphere after soil conditioner application
As can be seen from Table 2: the saline-alkali cultivated land soil micro-domain conditioner is continuously applied to moderate saline soil in Tongshi county for 2 years, the degree of alkalization of the soil rhizosphere is obviously reduced, and the degree of alkalization of the three treatments of T2, T3 and T4 is respectively reduced by 30.19%, 25.51% and 22.47% compared with that of the treatment of a control T1, and the degree of alkalization reaches an extremely obvious level; the salt content of the soil is reduced, and the salt content of the three treatments of T2, T3 and T4 is reduced by 3.79%, 2.37% and 1.42% respectively compared with the treatment of a control T1; the soil pH was also reduced, with three treatments T2, T3, and T4 reducing pH by 0.34, 0.28, and 0.20 units, respectively, compared to the control T1 treatment. Therefore, 3 kinds of micro-domain modifying agents have the function of modifying the micro-domain soil around the root system.
The alkalization degree of the T2 treatment is respectively reduced by 6.28 percent and 9.97 percent compared with the alkalization degree of the T3 treatment and the T4 treatment, and the treatment reaches a remarkable level; the salt content of the soil is reduced, and the salt content of T2 is respectively reduced by 1.46 percent and 2.40 percent compared with that of T3 and T4; the soil pH is also reduced, and the T2 is reduced by 0.06 unit and 0.14 unit compared with the T3 unit and the T4 unit. Thus, the modifier of example 1 has the most significant improvement effect. 2) After the saline-alkali farmland soil micro-domain conditioner is applied, the yield of the corn is increased.
After the saline-alkali farmland soil micro-domain conditioner is applied to soil, the soil environment around the corn rhizosphere is improved, so that the water and nutrient absorption capacity of the root system is enhanced, and the yield per unit is further improved (see figure 1 and table 3).
TABLE 3 yield increase effect after soil conditioner application
| Serial number | Treatment of | Corn kernel wind dry weight (kg/mu) | Increase production (kg/mu) | Yield increase (%) |
| T1 | Without applying modifying agent | 255.7 | ||
| T2 | Example 1 | 292.7 | 37.0 | 14.47﹡﹡ |
| T3 | Example 2 | 282.5 | 26.8 | 10.48﹡﹡ |
| T4 | Example 3 | 276.4 | 20.7 | 8.10﹡ |
As can be seen from Table 3: the saline-alkali cultivated land soil micro-domain conditioner is continuously applied to moderate saline soil in the Changshi county for 2 years, and the yield per unit of corn is remarkably and remarkably increased. Compared with the T1 control treatment, the T2, T3 and T4 treatment respectively increase the yield per unit area of corn by 37.0 kg/mu, 26.8 kg/mu and 20.7 kg/mu, and increase the relative yield by 14.47%, 10.47% and 8.10%, wherein the examples 1 and 2 achieve the extremely obvious yield increase level, and the example 3 achieves the obvious yield increase level.
The yield of the corn is increased by 3.61 percent and 5.90 percent compared with the yield of the corn in examples 2 and 3 respectively, and the yield per unit area of the corn is increased remarkably compared with the yield of the corn in example 3. The corn unit yield of the 3 examples was compared, and the one of example 1 was the best and the best micro-domain modifier.
The embodiment 1 is the best modifier by integrating the improvement and yield increase effects of the saline-alkali farmland soil micro-domain modifier on the physicochemical properties of the saline-alkali soil.
In conclusion, the conditioner of the invention can reduce the salt content and pH value of the soil around the root system of the crop in the saline-alkali land, improve the organic matter content of the soil, improve the physical and chemical properties of the soil structure and the soil nutrient environment, improve the nutrient utilization rate of nitrogen, phosphorus and the like, strengthen the nutrition, enhance the stress resistance and promote the growth and development by using monopotassium phosphate as a plant growth regulator, promote the rooting by using rooting powder, promote the growth and development of the root system by using polyglutamic acid and the like, further promote the nutrient absorption of the crop, promote the growth and development of the crop and achieve the purposes of increasing the yield and the income.
Claims (4)
1. The soil conditioner for improving the micro-area environment around the crop root system of saline-alkali soil farmland is characterized in that: according to weight percentage, the aluminum sulfate accounts for 15-35%, the phosphogypsum accounts for 30-55%, the polyacrylamide accounts for 1-5%, the lignite humic acid accounts for 10-30%, the monopotassium phosphate accounts for 1-4%, the polyglutamic acid accounts for 1-3%, and the rooting powder accounts for 0.1-0.2%.
2. The soil conditioner for improving the micro-area environment around the root system of the crop on the saline-alkali soil farmland as claimed in claim 1, which is characterized in that: according to the proportion, the aluminum sulfate, the phosphogypsum, the polyacrylamide, the lignite humic acid, the monopotassium phosphate and the polyglutamic acid of the powder are uniformly mixed with the rooting powder, and then the mixture is sieved by a sieve with the diameter of 5 mm.
3. The soil conditioner for improving the micro-area environment around the root system of the crop on the saline-alkali soil farmland as claimed in claim 1, which is characterized in that: the application amount of the micro-domain modifier is 16 kg/mu.
4. The soil conditioner for improving the micro-area environment around the root system of the crop on the saline-alkali soil farmland as claimed in claim 1, which is characterized in that: the modifier is used alone or applied together with seed manure after being mixed and stirred evenly.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115448803A (en) * | 2022-09-27 | 2022-12-09 | 李东霖 | Preparation and application method of multifunctional organic fertilizer with saline-alkali soil improvement effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276903A (en) * | 2014-09-15 | 2015-01-14 | 中国科学院南京土壤研究所 | Chemical improvement conditioner suitable for coastal beach and strongly saline-alkaline land and application method thereof |
| CN105103908A (en) * | 2015-08-28 | 2015-12-02 | 贵州开磷集团股份有限公司 | Method for planting peas in moderate saline-alkali land |
| CN106316571A (en) * | 2016-07-29 | 2017-01-11 | 山东胜伟园林科技有限公司 | Biological type organic-inorganic compound fertilizer for improvement in saline land and preparation method thereof |
| CN106518506A (en) * | 2015-09-15 | 2017-03-22 | 沈阳中科新型肥料有限公司 | Saline-alkali soil modifying agent with fertilizer synergia effect |
| CN114196413A (en) * | 2020-09-17 | 2022-03-18 | 沈阳中科新型肥料有限公司 | Saline-alkali soil conditioner suitable for moderate and severe salinization soil |
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2020
- 2020-09-17 CN CN202010979370.XA patent/CN114196412A/en active Pending
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| CN104276903A (en) * | 2014-09-15 | 2015-01-14 | 中国科学院南京土壤研究所 | Chemical improvement conditioner suitable for coastal beach and strongly saline-alkaline land and application method thereof |
| CN105103908A (en) * | 2015-08-28 | 2015-12-02 | 贵州开磷集团股份有限公司 | Method for planting peas in moderate saline-alkali land |
| CN106518506A (en) * | 2015-09-15 | 2017-03-22 | 沈阳中科新型肥料有限公司 | Saline-alkali soil modifying agent with fertilizer synergia effect |
| CN106316571A (en) * | 2016-07-29 | 2017-01-11 | 山东胜伟园林科技有限公司 | Biological type organic-inorganic compound fertilizer for improvement in saline land and preparation method thereof |
| CN114196413A (en) * | 2020-09-17 | 2022-03-18 | 沈阳中科新型肥料有限公司 | Saline-alkali soil conditioner suitable for moderate and severe salinization soil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115448803A (en) * | 2022-09-27 | 2022-12-09 | 李东霖 | Preparation and application method of multifunctional organic fertilizer with saline-alkali soil improvement effect |
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