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Safety and nuisance-free bio-gas liquid application method

An application method and biogas slurry technology, applied in fertilization methods, botanical equipment and methods, applications, etc., can solve the problems affecting soil ecology, the effect of increasing crop yield, the inability of single application of biogas slurry, etc., to ensure safety, The effect of increasing production is obvious

Inactive Publication Date: 2007-07-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the existing single application of biogas slurry cannot increase crop production, and long-term excessive application affects soil ecology and agricultural product safety.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: The applied crop is cabbage, and 3000-4000 kg of biogas slurry per mu is used as the base fertilizer to apply to the vegetable field. The total amount of topdressing fertilizer is 2000-2500 kg of biogas slurry per mu, and 0.3-0.6 kg of 45% compound fertilizer and urea are added to 100 kg of top-dressing biogas slurry. , Generally every 10-20 days water once.

[0009] Above-mentioned using method compares with only applying chemical fertilizer, and the result is: after harvesting, soil organic matter content improves 16.25% than using conventional chemical fertilizer, and EC (conductivity) value then reduces 11.26%; (sufficient fertilizer) and single application of biogas slurry (sufficient nutrient) increased production by 15.89% and 19.25%; the nitrate content in the obtained agricultural products was reduced by 13.23% compared with conventional chemical fertilizer application, and the Vc (ascorbic acid) content increased by 15.61% and 15.61% respectively...

Embodiment 2

[0014] Embodiment 2: The applied crop is cabbage, and 3000-4000 kg of biogas slurry per mu is used as the base fertilizer to apply to the vegetable field. Only chemical fertilizers are used for top dressing, and the total amount of top dressing is 0.3 to 0.6 kg of 45% compound fertilizer and urea. After fully dissolving water, water and fertilizer are applied multiple times in place of watering. Generally, water every 10-20 days.

[0015] The above method of use is compared with only applying chemical fertilizers, and the result is that the soil organic matter content after harvest is 15.22% higher than that of conventional chemical fertilizer application, while the EC value is reduced by 10.71%; (Sufficient fertilizer) and single application of biogas slurry (sufficient nutrient) increased production by 13.84%, 17.15%, nitrate decreased by 10.83% compared with conventional chemical fertilizer, Vc content increased by 18.44% and 12.87% respectively; heavy metal content product...

Embodiment 3

[0020] Embodiment 3: The applied crop is cabbage, and the amount of 2000-3000 kg of biogas slurry per mu is dissolved in the amount of 0.5-1 kg of 45% compound fertilizer per 100 kg of biogas slurry, and then the compound fertilizer is applied to the vegetable field as a base fertilizer. The total amount of biogas slurry for top dressing is 2000-2500 kg biogas slurry per mu, and 0.3-0.6 kg of 45% compound fertilizer and urea are added to each 100 kg of biogas slurry for top-dressing fertilizer. apply. Generally, water every 10-20 days.

[0021] The above method of use is compared with only using chemical fertilizers, and the result is: the soil organic matter content after harvest is 9.24% higher than that of conventional chemical fertilizers, and the EC value is reduced by 9.47%; (Sufficient fertilizer) and single application of biogas slurry (sufficient nutrient) increased production by 13.16%, nitrate was reduced by 9.55% by conventional application of chemical fertilizers...

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PUM

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Abstract

The invention relates to a method for irrigating vegetable with marsh liquid, wherein said method comprises that: collecting and transmitting the ferment marsh liquid to the field; when N:P2O5:K2O of marsh liquid is 1:0.4-0.6:0.8-1. 5, using 2000-4000kg marsh liquid of each unit as base fertilizer to be fed into vegetable field; adding 2000-2500kg marsh liquid via demand, and adding composite fertilizer and aquacare with 0.3-0.6kg / 100kg marsh liquid. The invention can realize non-pollution irrigation.

Description

technical field [0001] The invention relates to a method for applying organic fertilizers, in particular to a method for applying biogas slurry for safe and pollution-free irrigation. Background technique [0002] Biogas slurry is the residue after anaerobic fermentation of various organic matter such as human and animal manure and crop straw, and is a high-quality organic matter. It is rich in basic nutrient elements of nitrogen, phosphorus and potassium, and all of them exist in the form of quick-acting nutrients. Therefore, it has strong quick-acting nutrient capacity and high nutrient utilization rate. It is a multi-variety quick-acting compound fertilizer. The biogas slurry contains a certain amount of humic acid, which plays a direct role in the formation of soil aggregate structure; the organic components such as fibers in the biogas slurry provide an essential basis for loosening the soil and increasing the content of soil organic matter; and the biogas slurry contai...

Claims

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Application Information

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IPC IPC(8): A01C21/00A01G1/00A01B77/00C05F7/00B09C1/08
CPCY02A40/20
Inventor 石伟勇叶伟宗汤少红倪亮陆宏成国良罗光恩贾燕芳方芳
Owner ZHEJIANG UNIV
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