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Carbon-based water-soluble fertilizer and preparation method and application thereof

A water-soluble fertilizer and carbon-based technology, applied in botany equipment and methods, applications, nitrogen fertilizers, etc., can solve the problems of organic-inorganic composite water-soluble fertilizers that have not yet been seen, to ensure nutrient efficiency and fertilization effect, reduce fertilizer loss, water-soluble Good results

Pending Publication Date: 2018-09-28
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no organic-inorganic compound water-soluble fertilizer

Method used

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  • Carbon-based water-soluble fertilizer and preparation method and application thereof
  • Carbon-based water-soluble fertilizer and preparation method and application thereof
  • Carbon-based water-soluble fertilizer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 For the technical process of carbon-based water-soluble fertilizer of the present invention, refer to figure 1 Shown: the preparation process of carbon-based water-soluble fertilizer is as follows:

[0025] (1) The wood vinegar liquid obtained by the separation of volatile matter during the carbonization of corn stalks, the temperature is above 80°C, directly spray the hot biochar, control the carbon-to-liquid ratio of 1:20 (m:V=1kg:20L), and stir At least 30 minutes, using a centrifuge or membrane filtration to separate the solid from the liquid, and the liquid components for later use;

[0026] (2) add inorganic fertilizer in liquid, and inorganic fertilizer selects urea, K for use 2 SO 4 、KH 2 PO4 (addition amount is urea 85g L respectively -1 、K 2 SO 4 25g·L -1 、KH 2 PO 4 76g·L -1 , other medium and micronutrient elements can also be transferred according to the type of crops and the law of fertilizer requirements), feed at 60°C, stir for at le...

Embodiment 2

[0028] Application method of carbon-based water-soluble fertilizer (field test of water spinach): sowed on July 3, 2017, and harvested two crops of water spinach until September 10. After sowing, start spraying carbon-based water-soluble fertilizer after about 3 to 4 leaves unfold, according to 1L·m -2 The amount of fertilizer applied is sprayed once every 7 days, and one crop of water spinach is harvested after spraying 4 times of carbon-based water-soluble fertilizer. And set the control treatment (CK) of spraying the same amount of clear water, each treatment is repeated 3 times, arranged in random blocks, and the area of ​​the plot is 12m 2 (3m×4m). Adjacent plots are separated by 20cm wide field ridges. The basal fertilizer is applied according to the conventional fertilization method of local farmers, and the total nutrient is 48% (N-P 2 o 5 -K 2 O, 16-16-16, %) compound fertilizer, the application rate is 1000kg / hm 2 , do not apply top dressing. Sowing, weeding, ...

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Abstract

The invention relates to a carbon-based water-soluble fertilizer and a preparation method and application thereof. According to the carbon-based water-soluble fertilizer, wood vinegar of the temperature of 80 DEG C or above is sprayed to hot biomass charcoal, the ratio of the biomass charcoal to the wood vinegar is controlled at 1 kg :20 L, and stirring is carried out for at least 30 min; after solid-liquid separation is carried out, soluble inorganic fertilizer is added to the liquid, and the carbon-based water-soluble fertilizer is obtained. The carbon-based water-soluble fertilizer is overall liquid, the content of soluble organic matter (DOM) is 91 g L<-1>, and the content of inorganic nutrients (N+P2O5+K2O) is 120 g L<-1>. The wood vinegar is generated in the carbonization process ofcorn straw, and the biomass charcoal is corn straw biomass charcoal. According to the carbon-based water-soluble fertilizer and the preparation method and application thereof, the yield of vegetablescan be remarkably increased, and the quality of the vegetables can be remarkably improved.

Description

technical field [0001] The invention relates to a carbon-based water-soluble fertilizer and a preparation method thereof. It is prepared by using biomass charcoal, wood vinegar produced in a carbonization process and inorganic fertilizers. It is suitable for modern agricultural facilities such as spray irrigation and drip irrigation, and can improve crop yield and quality. It is simple and convenient to use, realizes the integration of water and fertilizer, is beneficial to promote the comprehensive utilization of agricultural waste biomass carbonization products, and belongs to the field of agricultural waste resource utilization and new green ecological agricultural production materials. Background technique [0002] Biochar is a solid product obtained from oxygen-limited pyrolysis of biomass waste. Biochar produced by pyrolysis of agricultural biomass such as straw can improve soil structure, improve soil fertility and increase crop yield. At present, China's straw bioma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04A01G25/02C05G3/80
CPCA01G25/02C05B7/00C05G3/80C05G5/20C05C9/00C05D1/02C05D9/00C05G3/00
Inventor 王盼潘根兴李恋卿卞荣军郑庭茜
Owner NANJING AGRICULTURAL UNIVERSITY
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