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Control agent for reduced sulfur poison in cold waterlogged paddy field and preparation and usage method thereof

A control agent, a technology of cold soaking field, applied in other chemical processes, chemical instruments and methods, restoration of contaminated soil, etc., can solve the problems of less than 10% comprehensive utilization rate, underutilized, low feed value, etc. , to achieve the effect of increasing production

Inactive Publication Date: 2014-03-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the main components of rice husk are cellulose, lignin and ash, each accounting for 26% to 36%, 20% to 24%, and 18% to 20%. The protein content is only 2% to 3%, so the feeding value Not high. At present, rice husk is mainly used as fuel or directly treated as waste, and the comprehensive utilization rate is less than 10%, which is far from being fully utilized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1, a kind of preparation method of reducing state sulfur poisoning control agent in cold soaking field, carries out following steps successively:

[0040] 1), ingredients:

[0041] The raw material is composed of the following components by weight:

[0042] 100 parts of rice husk, 12 parts of fresh pig manure, 1.8 parts of wheat bran, 0.18 parts of brown sugar, 1.7 parts of urea, 55 parts of water, 0.35 parts of enzyme bacteria and 168 parts of sodium hydroxide solution (concentration: 1.5mol / L). Rice husks are crushed to pass through a sieve with a 3mm aperture.

[0043] 2), the preparation of the base material:

[0044] ①. Dissolve brown sugar in part of water (1 / 2 volume of water) to get brown sugar water; dissolve urea in the remaining water to get urea water;

[0045] ②. Mix brown sugar water, urea water, wheat bran and enzyme bacteria evenly to get small ingredients;

[0046] ③. Mix the small ingredients with fresh pig manure evenly to obtain fermente...

Embodiment 2

[0055] Embodiment 2, a kind of preparation method of reducing state sulfur poisoning control agent in cold-leaching field, carries out following steps successively:

[0056] 1), ingredients:

[0057] The raw material is composed of the following components by weight:

[0058] 100 parts of rice husk, 15 parts of fresh pig manure, 2.0 parts of wheat bran, 0.2 parts of brown sugar, 1.8 parts of urea, 50 parts of water, 0.4 parts of enzyme bacteria and 144 parts of sodium hydroxide solution (concentration: 1.7mol / L). Rice husks are crushed to pass through a sieve with a 3mm aperture.

[0059] 2), the preparation of the base material:

[0060] With embodiment 1.

[0061] 3) Fermentation of control agent base material:

[0062] With embodiment 1.

[0063] 4) Modification of control agent base material after fermentation:

[0064] Mix the fermented control agent base material with the above-mentioned sodium hydroxide solution; then react at 95°C for 3.5 hours; after cooling to ...

Embodiment 3

[0065] Embodiment 3, a kind of preparation method of reducing state sulfur poisoning control agent in cold-leaching field, carries out following steps successively:

[0066] 1), ingredients:

[0067] The raw material is composed of the following components by weight:

[0068] 100 parts of rice husk, 10 parts of fresh pig manure, 1.5 parts of wheat bran, 0.15 parts of brown sugar, 1.5 parts of urea, 60 parts of water, 0.3 parts of enzyme bacteria and 180 parts of sodium hydroxide solution (concentration: 1.3mol / L). Rice husks are crushed to pass through a sieve with a 3mm aperture.

[0069] 2), the preparation of the base material:

[0070] With embodiment 1.

[0071] 3) Fermentation of control agent base material:

[0072] With embodiment 1.

[0073] 4) Modification of control agent base material after fermentation:

[0074] Mix the fermented control agent base material with NaOH solution; then react at 85°C for 4.5 hours; after cooling to room temperature, centrifuge to...

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Abstract

The invention discloses a control agent for reduced sulfur poison in the cold waterlogged paddy field, which comprises the following components in parts by weight: 100 parts of rice hull, 10-15 parts of pig manure, 1.5-2.0 part of wheat bran, 0.15-0.20 part of brown sugar, 1.5-1.8 parts of urea, 50-60 parts of water, 0.3-0.4 part of ferment fungus and 144-180 parts of 1.3-1.7mol / L solution of sodium oxide. The invention further discloses a preparation method of the control agent. The control agent is used as follows: applying the control agent 2 or 4 days before the rice is transplanted, and applying the control agent when the rice is in the tillering stage, wherein the 40-60kg of the control agent is applied to the cold waterlogged paddy field per mu.

Description

technical field [0001] The invention relates to a reducing state sulfur poisoning control agent for cold soaking field and its preparation method and application method. Background technique [0002] Cold-soaking field refers to paddy soil farmland under the joint action of natural or human factors, the groundwater level is too high, and the soil formation layer has been soaked by groundwater for a long time, causing cold soaking damage to the soil, strong reduction effect, physical and chemical properties and crop root system. The diseased farmland with deteriorating growth environment is called waterlogged low-yield field or secondary gleization by the agricultural department. Cold-leaching fields can be divided into primary and secondary cold-leaching fields according to their causes. The original type of cold soaking field is mainly controlled by soil quality, micro-geomorphology, and hydrogeological conditions, and there are mainly two types: water-soaked type and wate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30B09C1/00
Inventor 廖敏柴娟娟陈娜
Owner ZHEJIANG UNIV
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