Anti-caking water-retaining compound fertilizer and preparation method thereof

A compound fertilizer and anti-caking technology, which is applied in the preparation of organic fertilizers, urea compound fertilizers, organic fertilizers, etc., can solve the problems of affecting the growth of crop roots, non-recyclable use, and soil environmental pollution, so as to improve particle stability, Good effect, the effect of improving soil structure

Inactive Publication Date: 2016-08-24
吕爱萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Mulch film has the functions of heat preservation, water retention, and frost protection for crops. The application of mulch film technology has greatly improved and increased the yield and benefit of crops. However, traditional mulch film is a synthetic polymer compound that is almost non-degradable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An anti-caking and water-retaining compound fertilizer, made of the following raw materials by weight (kg): urea 20, expanded perlite 10, EM bacterial agent 3, weathered coal 20, sodium humate 13, potassium dihydrogen phosphate 12, chitosan Sugar 10, polyacrylamide 2, ferric ammonium citrate 2, magnesium sulfate 5, activated carbon 4, Chinese herbal medicine residue 6, plant ash 8, pine needle soil 6, polylactic acid 6, polyvinyl alcohol 8, N,N-methylenebispropylene Amide 0.5, appropriate amount of water.

[0020] The preparation method of the anti-caking and water-retaining compound fertilizer is characterized in that it comprises the following steps:

[0021] (1) Dry and grind the weathered coal to 180 mesh, take 2 times the weight of the powder and add water to the reaction kettle, add the powder and an appropriate amount of potassium permanganate to prepare a 4-8% potassium permanganate solution, stir and oxidize for 50 minutes , heated to 100°C, adding 0.5% potass...

Embodiment 2

[0028] An anti-caking and water-retaining compound fertilizer, made of the following raw materials by weight (kg): urea 21, expanded perlite 11, EM bacterial agent 4, weathered coal 24, sodium humate 14, potassium dihydrogen phosphate 13, chitosan Sugar 10, polyacrylamide 2, ferric ammonium citrate 3, magnesium sulfate 6, activated carbon 5, Chinese herbal medicine residue 7, plant ash 9, pine needle soil 7, polylactic acid 8, polyvinyl alcohol 10, N,N-methylenebispropylene Amide 0.8, appropriate amount of water.

[0029] The preparation method of the anti-caking and water-retaining compound fertilizer is the same as in Example 1.

Embodiment 3

[0031] An anti-caking and water-retaining compound fertilizer, made of the following raw materials by weight (kg): urea 22, expanded perlite 12, EM bacterial agent 5, weathered coal 25, sodium humate 15, potassium dihydrogen phosphate 14, chitosan Sugar 11, polyacrylamide 3, ferric ammonium citrate 3, magnesium sulfate 8, activated carbon 6, Chinese herbal medicine residue 8, plant ash 10, pine needle soil 8, polylactic acid 9, polyvinyl alcohol 12, N,N-methylenebispropylene Amide 1. Appropriate amount of water.

[0032] The preparation method of the anti-caking and water-retaining compound fertilizer is the same as in Example 1.

[0033] Take two wheat fields with an area of ​​5 mu each, and divide them into a control group and an experimental group. The control group uses commercially available ordinary slow-release fertilizers, and the farmland wheat using the improved soil acidification and water-retaining compound fertilizer of the present invention has good luster, heal...

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PUM

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Abstract

The invention discloses an anti-caking water-retaining compound fertilizer and a preparation method thereof. The anti-caking water-retaining compound fertilizer comprises, by weight parts, 20-22 parts of urea, 10-12 parts of expanded perlite, 3-5 parts of EM fungicide, 20-25 parts of weathered coal, 13-15 parts of sodium humic acid, 12-14 parts of monopotassium phosphate, 10-11 parts of chitosan, 2-3 parts of polyacrylamide, 2-3 parts of ferric ammonium citrate, 5-8 parts of magnesium sulfate, 4-6 parts of activated carbon, 6-8 parts of Chinese herb residues, 8-10 parts of plant ash, 6-8 parts of pine needle mulch, 6-9 parts of polylactic acid, 8-12 parts of polyvinyl alcohol, 0.5-1 part of N,N-methylene-bisacrylamide and an appropriate amount of water. According to the anti-caking water-retaining compound fertilizer, the functional components including the plant ash, the pine needle mulch, the weathered coal and the activated carbon are added, fertilizer particle pores are added, and the particle stability is improved, so that the anti-caking effect of the fertilizer is good; mutual adhesion and caking between fertilizer particles can be avoided during use, and thus the fertilizer efficiency is guaranteed.

Description

technical field [0001] The invention relates to the technical field of slow-release fertilizers, in particular to an anti-caking and water-retaining compound fertilizer and a preparation method thereof. Background technique [0002] At present, there are generally three kinds of agricultural fertilizers in the Chinese market: one is chemical raw material fertilizer, one is organic fertilizer, and the other is chemical raw material and organic fertilizer mixed fertilizer; the disadvantage of chemical raw material: long-term use will cause land soil compaction, Affect the growth of crops, resulting in a gradual reduction in production; the disadvantages of organic fertilizers are: the nutrients required by plants are insufficient to meet the needs of crop production; they affect crop yields; the disadvantages of mixed fertilizers: the organic matter and total nutrients in the fertilizer formula are contradictory, so High and low, if the organic matter content is too high, it i...

Claims

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Application Information

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IPC IPC(8): C05F17/00C05G3/00C05G3/04C05G3/80
CPCC05B7/00C05F17/00C05G3/80C05G5/30C05C3/00C05C9/00C05D1/00C05D5/00C05F5/00C05F11/02C05F11/08Y02W30/40
Inventor 吕爱萍
Owner 吕爱萍
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