Multi-functional biomass carbon fertilizer produced by using biomass carbon from straws and kitchen waste

A technology for kitchen waste and biomass charcoal, which is applied in the application, fertilization device, fertilizer mixture, etc.

Inactive Publication Date: 2012-02-22
NANJING AGRICULTURAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Straw is an abundant resource in agricultural production in my country, but the phenomenon of straw open-air burning is becoming more and more serious. According to statistics, about hundreds of millions of tons of straw are burned every year, and the emissions A large number of pollutants seriously threaten the atmospheric environment, and at the same time, cause serious waste of resources

Method used

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  • Multi-functional biomass carbon fertilizer produced by using biomass carbon from straws and kitchen waste
  • Multi-functional biomass carbon fertilizer produced by using biomass carbon from straws and kitchen waste
  • Multi-functional biomass carbon fertilizer produced by using biomass carbon from straws and kitchen waste

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Experimental program
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Effect test

Embodiment 1

[0023] The field test of rice biochar fertilizer in Chizhou, Anhui Province, the following treatments were set up in the test: 1) Conventional fertilization (CF): 25 kg / mu of compound fertilizer was applied as base fertilizer, and 10 kg of urea was applied; 2) Biochar fertilizer treatment 1 (BCF1): charcoal Base fertilizer 28 kg / mu as base fertilizer, topdressing 10 kg urea; 3) Biochar fertilizer treatment 2 (BCF2): carbon-based fertilizer 30kg / mu as base fertilizer, topdressing 15 kg urea for 3 treatments, each treatment repeated 3 times, The area of ​​the plot is 15m 2 , 32 plants per treatment, arranged in random blocks. There are 1m wide protective rows between the plots. The soil organic matter content of biochar fertilizer was 4%~5% higher than that of purified fertilizer. (refer to figure 2 ).

[0024] The biochar fertilizer described therein is obtained by the following steps:

[0025] 1. Pyrolysis of straw or kitchen waste to produce biochar

[0026] Collect c...

Embodiment 2

[0033] Cotton biochar fertilizer test in Chizhou, Anhui, the test set up the following treatments: 1) Conventional fertilization (CF): 15 kg / mu of compound fertilizer was applied as base fertilizer, followed by 15 kg of compound fertilizer, 15 kg of urea and 10 kg of potassium fertilizer; 2) biochar Fertilizer treatment 1 (BCF1): 16.8 kg / mu of carbon-based fertilizer as base fertilizer, followed by 15 kg of compound fertilizer, 15 kg of urea and 10 kg of potassium fertilizer; 3) Biochar fertilizer treatment 2 (BCF2): 30kg / mu of carbon-based fertilizer Base fertilizer, 15 kg compound fertilizer, 15 kg urea and 10 kg potash fertilizer; 3 treatments, each treatment repeated 3 times, the plot area is 15m 2 , 32 plants per treatment, arranged in random blocks. There are 1m wide protective rows between the plots. CF soil bulk density is 1.30~1.27g / cm 3 , BCF1 is 1.25~1.27 g / cm 3 , BCF2 is 1.15~1.29 g / cm 3 , the bulk density increased by 3%~4%. (refer to image 3 );

[0034] T...

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Abstract

The present invention relates to multi-functional biomass carbon fertilizer produced by using biomass carbon from straws and kitchen waste, and belongs to the technical field of organic and inorganic compound fertilizer. The fertilizer mainly comprises the following components, by weight, 15-30% of biomass carbon, 25-35% of nitrogen fertilizer, 15-25% of phosphorus fertilizer, 15-25% of potassium fertilizer and 2-4% of clay, wherein the total nutrient weight percentage of the prepared fertilizer is 35-42%, the organic matter content is 15-20%. The preparation method comprises the following steps: crushing the biomass carbon; screening the crushed biomass carbon by using a 1 mm sieve; uniformly mixing the screened biomass carbon, the nitrogen fertilizer, the phosphorus fertilizer and the potassium fertilizer; then mixing the clay to the resulting mixture; carrying out pelletizing by a steam drum, drying and screening to prepare uniform particles with the particle sizes of 2-3 mm. According to the present invention, the resource utilization of the waste can be effectively realized; the discharge of nitrous oxide of the soil can be significantly reduced; the fixed carbon content in the soil can be improved; the soil bulk density can be regulated; the nitrogen utilization efficiency of the crop can be increased; the yield and the quality of the crop can be substantially improved.

Description

[0001] technical field [0002] The invention relates to a multifunctional biomass charcoal fertilizer produced by using agricultural and domestic kitchen waste and a preparation method thereof. The multifunctional biomass charcoal fertilizer developed has the functions of improving nitrogen fertilizer efficiency, improving soil structure and biological activity, and effectively It has many good effects such as inhibiting soil nitrous oxide greenhouse gas emissions. The invention belongs to a technical method for increasing organic matter content and soil carbon sequestration, promoting crop production and reducing farmland greenhouse gas emissions, and belongs to the technical field of resource recycling and organic-inorganic multifunctional new fertilizers. [0003] Background technique [0004] my country's grain yield has increased year by year, and the grain production capacity per unit area has been significantly improved. Among them, the application of chemical fertil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
Inventor 潘根兴李恋卿刘福礼吴新民郑金伟乔志刚李晓张旭辉郑聚锋
Owner NANJING AGRICULTURAL UNIVERSITY
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