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Saline-alkali soil modifier suitable for moderately and severely salinized soil

A technology of saline-alkali soil improvement and soil improver, which is applied in the field of saline-alkali soil improver, which can solve the problems of poor plant regulation ability, poor physical and chemical property improvement effect, and slow improvement effect, so as to reduce alkalization, increase soil organic matter content, Effect of improving soil structure

Pending Publication Date: 2022-03-18
沈阳中科新型肥料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, more studies on saline-alkaline soil improvers were made by using aluminum sulfate and calcium sulfate to improve saline-alkali soil. The improvement effect is slow, the physical and chemical properties such as soil structure are poor, and the ability to regulate plants is poor.

Method used

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  • Saline-alkali soil modifier suitable for moderately and severely salinized soil
  • Saline-alkali soil modifier suitable for moderately and severely salinized soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Saline-alkali soil improver: by weight percentage, 10% aluminum sulfate, 15% phosphogypsum, 74.89% composted and fermented organic matter of plant residues, 0.10% potassium dihydrogen phosphate and 0.01% rooting powder.

[0019] The organic matter for the composting and fermentation of plant residues is to use plant residues as raw materials and add crop stalks and / or plant residues and fallen leaves to some manure containing pyrolytic bacteria in the prior art or fermented The compost is piled up, the temperature in the compost is controlled at about 60 degrees, and the time lasts for about 20 days, which can fully kill the pathogenic bacteria, parasite eggs and weed seeds in the compost, and then the organic matter content of the obtained compost is 40%. -60%.

[0020] Preparation: Mix aluminum sulfate powder, phosphogypsum powder (dry in the air), crushed organic matter from composting and fermenting plant residues, potassium dihydrogen phosphate and rooting powder a...

Embodiment 2

[0023] The improving agent, by weight percentage, includes 39.82% aluminum sulfate, 59.74% phosphogypsum, 0.40% potassium dihydrogen phosphate and 0.04% rooting powder.

[0024] Preparation: Mix the raw materials evenly according to the above ratio, then pass through a 10mm sieve, and pack in a standard bag of 40kg.

[0025] Apply 0.502 tons of the above-mentioned improver to each mu of land, sprinkle it evenly on the surface of the saline-alkali soil with a machine, perform rotary tillage, and then sow sorghum.

Embodiment 3

[0027] Improver, by weight percentage, 99.27% ​​phosphogypsum, 0.66% potassium dihydrogen phosphate and 0.07% rooting powder.

[0028] Preparation: Mix the raw materials evenly according to the above ratio, then pass through a 10mm sieve, and pack in a standard bag of 40kg.

[0029] Apply 0.201 tons of the above-mentioned improver to each mu of land, sprinkle it evenly on the saline-alkali soil surface with a machine, and then sow sorghum.

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Abstract

The invention relates to a soil improvement technology, in particular to a saline-alkali soil improver suitable for moderate and severe saline-alkali soil. The fertilizer comprises the following components in percentage by weight: 3%-20% of aluminum sulfate, 5%-20% of ardealite, 60%-90% of organic matters obtained by composting and fermenting plant residues, 0.05%-0.20% of monopotassium phosphate and 0.005%-0.020% of rooting powder. The modifier improves the organic matter content of soil, reduces the soil salt content and pH value of saline-alkali soil, improves the physicochemical properties such as soil structure and the soil nutrition environment, improves the utilization rate of nutrients such as nitrogen and phosphorus, enhances nutrition and the like, promotes the root development of crops, and further promotes the nutrient absorption of the crops; monopotassium phosphate is used for regulating and promoting the growth and development of crops; rooting powder promotes rooting; through the synergistic effect of various substances in the modifier, the purposes of enabling the saline-alkali soil to be suitable for crop growth, gradually improving the yield and benefits, developing and utilizing the saline-alkali soil and increasing the yield and income are achieved.

Description

technical field [0001] The invention relates to soil improvement technology, in particular to a saline-alkali soil improver suitable for moderately and severely salinized soil. Background technique [0002] Saline-alkali land is an important reserve cultivated land in my country, especially in severe and moderate saline-alkali land. Due to the influence of saline-alkali and other obstacles, crops are difficult to grow. Even if crops grow, their per unit yield is not high, which affects the production potential of saline-alkali land. Improvement has become the necessity of the times. The measures to improve saline-alkali land mainly include engineering, biological and chemical measures. Engineering measures are saline-alkali land control measures within the region and watershed range. After the implementation of saline-alkali land engineering control measures within the region and watershed range, the specific measures for saline-alkali land control and improvement must rely ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K109/00C09K101/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 孙毅石元亮王玲莉石淏心李忠李杰魏占波张蕾
Owner 沈阳中科新型肥料有限公司
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