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Biomass charcoal-based slow-release fertilizer with starch-poly(butyl acrylate) as carrier and preparation method thereof

A technology of polybutyl acrylate and biomass charcoal, which is applied to organic fertilizers, inorganic fertilizers, fertilizer mixtures, etc., can solve problems such as insufficient water absorption and water retention capacity, and achieve good water retention capacity, increase crop yield, and improve the effects of salt resistance.

Inactive Publication Date: 2017-06-27
安徽帝元现代农业投资发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is insufficient water absorption and water retention capacity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] A kind of starch-polybutylacrylate is the biomass charcoal-based slow-release fertilizer of carrier, is made by the raw material of following parts by weight (g):

[0020] Rice straw 45, urea 24, kaolin 12, itaconic acid 10, acrylamide 8, cerium ammonium nitrate 3, attapulgite 6, N,N ， - Methylenebisacrylamide 4, bentonite 11, humic acid 9, zeolite 10, bacillus 8, corn starch 7, butyl acrylate 6, azobisisobutyronitrile 2, NaOH solution, distilled water in proper amount.

[0021] A kind of starch-polybutylacrylate is the preparation method of the biomass charcoal-based slow-release fertilizer of carrier, it is characterized in that, carry out according to the following steps:

[0022] a. Dry the rice straw at 50-60°C to constant weight, cut it with a cutting machine to a length of 5-10cm, put it into a continuous pyrolysis device, heat up to 550-600°C for 3 hours, and pass through a 100-mesh sieve. Cool to room temperature to prepare rice straw biochar;

[0023] b. Add...

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PUM

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Abstract

The invention discloses a biomass charcoal-based slow-release fertilizer with starch-poly(butyl acrylate) as a carrier and a preparation process thereof. The biomass charcoal-based slow-release fertilizer is characterized in that rice straw, urea, kaolin, itaconic acid, acrylamide, ceric ammonium nitrate, attapulgite, N,N-methylene bisacrylamide, bentonite, humic acid, zeolite, bacillus, corn starch, butyl acrylate and azodiisobutyronitrile and the like. Ceric ammonium nitrate serves as an initiator, N,N-methylene bisacrylamide, bentonite serves as a cross-linking agent, itaconic acid and acrylamide are subjected to graft copolymerization to prepare a compound super absorbent resin, and the water retaining capacity is good; bentonite can improve soil structure, improve water retention and drought resistance and fertilizer retaining and fertility increase capability of soil; water absorption, water retention capacity and heat stability of the super absorbent resin are improved; a soil conditioner is prepared by recombination with humic acid, zeolite and bacillus, the biomass charcoal-based slow-release fertilizer can be used for adjusting soil acility and alkalinity and buffering soil value, and crop yield is improved.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a biomass charcoal-based slow-release fertilizer with starch-polybutylacrylate as a carrier, and a preparation process thereof. Background technique [0002] my country is a large agricultural production country, which produces a large amount of crop straw, direct burning will cause serious environmental problems, such as soil erosion, desertification and so on. Under certain conditions, the crop straw is pyrolyzed to obtain a solid biochar product, and the biochar prepared from the crop straw waste can be widely used in the agricultural field. [0003] In Zhang Wei's master's degree thesis "Preparation and Performance Research of Rice Straw Charcoal-based Slow-release Fertilizer", rice straw was used as raw material, biochar was prepared by continuous pyrolysis device, and biomass charcoal was prepared by disc granulation. fertilizer. Rice straw is dried at 40°C to constant weight, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/00C08F222/02C08F220/56C08F222/38C08F2/44C05G3/80
CPCC05C9/00C05G3/00C05G3/80C08F2/44C08F222/02C08F220/56C08F222/385C05D5/00C05D9/00C05F11/00C05F11/02C05F11/08
Inventor 商文芳
Owner 安徽帝元现代农业投资发展有限公司
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