Nutrient slow-release type acid soil improver and preparation method thereof

An acidic soil, slow-release technology, applied in the direction of ammonium nitrate fertilizer, application, nitrogen fertilizer, etc., can solve the problem of easy loss of soil nutrients and achieve the effect of strong absorption and water storage capacity

Inactive Publication Date: 2018-06-29
段艳玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to overcome the problem of easy loss of soil nutrient elements in rainy climate areas in the prior art, and provides a nutrient slow-release acidic soil improver

Method used

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  • Nutrient slow-release type acid soil improver and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A nutrient slow-release acidic soil improver, made of the following raw materials in parts by weight:

[0025] 15 parts of modified coral reef with particle size of 10 meshes, 20 parts of acrylamide, 15 parts of diethanolamine, 8 parts of phosphorus tailings, 10 parts of plant ash, 8 parts of potassium sulfate, 6 parts of ammonium nitrate, 4 parts of ferrous sulfate, magnesium sulfate heptahydrate 2 parts, 10 parts of vermiculite with a particle size of 200 mesh and 0.5 part of ammonium persulfate.

[0026] Wherein, the preparation method of modified coral reef is:

[0027] Roast the coral reef at 200°C for 4 hours, take it out and cool it for 10 hours, then mix it with allyl alcohol, the mixing mass ratio of allyl alcohol and coral reef is 6:1, and then add dienyl triethoxy 0.1 times the mass of the coral reef Silane was stirred with a magnetic stirrer for 2 hours, then N-N methylenebisacrylamide 0.2 times the mass of the coral reef was added, ultrasonically oscillate...

Embodiment 2

[0032] A nutrient slow-release acidic soil improver, made of the following raw materials in parts by weight:

[0033] 16 parts of modified coral reef with particle size of 12 meshes, 22 parts of acrylamide, 16 parts of diethanolamine, 9 parts of phosphorus tailings, 12 parts of plant ash, 8 parts of potassium sulfate, 6 parts of ammonium nitrate, 5 parts of ferrous sulfate, magnesium sulfate heptahydrate 2.2 parts, 11 parts of vermiculite with a particle size of 220 mesh and 0.6 parts of ammonium persulfate.

[0034] Wherein, the preparation method of modified coral reef is:

[0035] Roast the coral reef at 220°C for 5 hours, take it out and cool it for 12 hours, then mix it with allyl alcohol, the mixing mass ratio of allyl alcohol and coral reef is 7:1, and then add dienyl triethoxy 0.15 times the mass of the coral reef Silane was stirred with a magnetic stirrer for 2.5 hours, then N-N methylenebisacrylamide 0.22 times the mass of the coral reef was added, ultrasonically os...

Embodiment 3

[0039] A nutrient slow-release acidic soil improver, made of the following raw materials in parts by weight:

[0040] 18 parts of modified coral reef with particle size of 15 meshes, 23 parts of acrylamide, 16.5 parts of diethanolamine, 9.6 parts of phosphorus tailings, 13 parts of plant ash, 8.5 parts of potassium sulfate, 6.7 parts of ammonium nitrate, 5.5 parts of ferrous sulfate, magnesium sulfate heptahydrate 2.5 parts, 11.5 parts of vermiculite with a particle size of 230 mesh and 0.7 parts of ammonium persulfate.

[0041] Wherein, the preparation method of modified coral reef is:

[0042] Roast the coral reef at 230°C for 6 hours, take it out and cool it for 15 hours, then mix it with allyl alcohol, the mixing mass ratio of allyl alcohol and coral reef is 8:1, and then add dienyl triethoxy which is 0.2 times the mass of the coral reef Silane was stirred with a magnetic stirrer for 3 hours, then N-N methylenebisacrylamide 0.25 times the mass of the coral reef was added, u...

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Abstract

The invention relates to the technical field of soil improvement and discloses a nutrient slow-release type acid soil improver and a preparation method thereof. The soil improver is prepared from thefollowing raw materials in parts by weight: 15-20 parts of modified coral reef, 20-25 parts of acrylamide, 15-18 parts of diethanol amine, 8-10 parts of phosphate tailings, 10-15 parts of plant ash, 8-10 parts of potassium sulfate, 6-8 parts of ammonium nitrate, 4-7 parts of ferrous sulfate, 2-3 parts of magnesium sulfate heptahydrate, 10-12 parts of vermiculite and 0.5-1 part of ammonium persulfate. The acid soil improver provided by the invention is capable of remarkably degrading acidity of soil and slowly releasing nutrient substances, and has a relatively good improvement effect on soil quality.

Description

technical field [0001] The invention relates to the technical field of agricultural soil regulation, in particular to a nutrient slow-release acidic soil improver and a preparation method thereof. Background technique [0002] Due to natural factors and human factors, my country's soil quality is seriously degraded, especially soil acidification. Soil acidification is mainly caused by large and concentrated precipitation, strong leaching, and a large amount of alkaline bases such as calcium, magnesium, and potassium are lost. Soil acidification will cause the pH value of the soil to decrease. Acidic soil affects biological activity, changes the form of nutrients in the soil, reduces the availability of nutrients, and promotes the integration of free manganese and aluminum ions into the soil, which is toxic to crops. In addition, soil acidification inhibits Root development, soil acidification can aggravate the compaction of the soil, making it difficult for the root system t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B17/00C05G3/00C05G3/80C05C1/00C05C3/00C05D1/00C05D1/02C05D3/02C05D5/00C05D9/00
Inventor 段艳玲
Owner 段艳玲
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