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Ca/Fe/GO/biomass charcoal, carbon-based slow-release fertilizer special for corn and application of carbon-based slow-release fertilizer

A special technology for biomass charcoal and corn, applied in the application, fertilization device, fertilizer mixture and other directions, can solve the problems of biomass charcoal base fertilizer can not play a role in weight loss and efficiency, easily damaged nutrients and biomass charcoal, difficult to form, etc. Good bonding effect, good effect, improve the effect of organic bonding

Inactive Publication Date: 2019-05-28
QINGDAO AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biochar-based fertilizer dedicated to corn in the prior art is not easy to form, is easily damaged, and the nutrients and biochar are not adsorbed firmly, and the defects of short fertilizer efficiency are easy to make the biochar-based fertilizer unable to play the role of reducing weight and increasing efficiency.

Method used

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  • Ca/Fe/GO/biomass charcoal, carbon-based slow-release fertilizer special for corn and application of carbon-based slow-release fertilizer
  • Ca/Fe/GO/biomass charcoal, carbon-based slow-release fertilizer special for corn and application of carbon-based slow-release fertilizer
  • Ca/Fe/GO/biomass charcoal, carbon-based slow-release fertilizer special for corn and application of carbon-based slow-release fertilizer

Examples

Experimental program
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Effect test

preparation example Construction

[0047] The special carbon-based slow-release fertilizer for corn provided by the invention includes decomposed mushroom residue. In parts by weight, the decomposed mushroom residue is preferably 5 parts. In the present invention, the preparation method of the decomposed mushroom residue preferably includes the following steps:

[0048] A. After inoculating the EM bacteria compost starter to the fungus slag raw material, adjust the water content to 60% to 70% to obtain the pre-wet material;

[0049] B. Building and fermenting the pre-wet material for 10 to 18 days, and turning the pile once every 2 to 4 days to obtain a fermentation product;

[0050] C. The fermentation product is left to stand for 15 days to obtain decomposed mushroom fertilizer.

[0051] In the present invention, the fungi dregs preferably include the following components in parts by weight: 15-30 parts of oyster mushroom dregs, 10-15 parts of fungus dregs, 10-20 parts of chicken leg dregs, and 10-20 parts ...

Embodiment 1

[0057] The corn stalks are washed with water to remove surface impurities, dried at 70°C, crushed, and passed through a 100-mesh sieve. The obtained corn stalk slag powder is mixed with calcium chloride, ferric chloride and graphene oxide. 0.5% of the quality of slag powder; the quality of ferric chloride accounts for 1.5% of the quality of biomass raw material slag powder; the quality of graphene oxide accounts for 1.5% of the quality of biomass raw material slag powder to obtain a mixed material; the mixed material is sequentially heated at 100 ° C Carbonization at high temperature for 1 h and carbonization at 600°C for 6 h to obtain the primary product of modified biochar; wash the primary product of modified biochar to neutrality to obtain Ca / Fe / GO modified biochar.

Embodiment 2

[0062] A special modified biochar-based fertilizer for corn, comprising the following raw materials in parts by weight: 15kg of Ca / Fe / GO / biomass charcoal prepared in Example 1 (the biochar prepared in Comparative Example 1 is a control group), cyanamide Calcium chloride 8kg, calcium superphosphate 35kg, potassium sulfate 30kg, plant ash 6kg, bentonite 5kg, calcium sulfate 5kg and fungus residue 6kg.

[0063] Its preparation method is:

[0064] (1) Weigh each component and mix them evenly.

[0065] (2) The mixed raw materials are granulated. The granulation process uses high-temperature steam as the reaction medium. The amount of steam used is 25% of the total mass of the raw materials. The granulation temperature is maintained at 100° C. by high-temperature steam.

[0066] (3) Quickly dry the formed biochar-based fertilizer granules at 400°C to make the moisture content lower than 5%, and pass through a 20-mesh sieve to obtain biochar-based fertilizers with a fertilizer parti...

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Abstract

The invention provides Ca / Fe / GO / biomass charcoal, carbon-based slow-release fertilizer special for corn and application of the carbon-based slow-release fertilizer, and belongs to the technical fieldof fertilizer. The Ca / Fe / GO / biomass charcoal is prepared by the following steps: mixing biomass raw material slag powder with calcium chloride, ferric chloride and graphene oxide, carbonizing the mixed material at 100 to 120 DEG C for 1 to 2hours and at 500 to 600 DEG C for 4 to 6 hours in sequence, and washing the carbonized product to be neutral to obtain modified biomass charcoal. The carbon-based slow-release fertilizer special for the corn is prepared from the following components in parts by weight: 15 to 20 parts of the modified biomass charcoal, 5 to 8 parts of calcium cyanamide, 35 to40 parts of superphosphate, 20 to 30 parts of potassium salt, 6 to 9 parts of plant ash, 5 to 10 parts of bentonite, 1 to 5 parts of calcium sulfate and 3 to 7 parts of a mushroom dreg composted material. The slow-release fertilizer provided by the invention is not easily broken, and the fertilizer effect is prolonged; when the slow-release fertilizer is applied in a corn planting process, the yield is increased by 5% or above and the soil structure can be improved.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, in particular to Ca / Fe / GO / biomass charcoal, special carbon-based slow-release fertilizers for corn and applications thereof. Background technique [0002] The macronutrients nitrogen, phosphorus, and potassium in the soil usually cannot meet the needs of crop growth, and fertilizers containing nitrogen, phosphorus, and potassium need to be used to make up for it. Common chemical fertilizers include nitrogen fertilizers, phosphorus fertilizers, potassium fertilizers, micro-fertilizers, compound fertilizers, etc., which have the characteristics of simple ingredients, high nutrient content, fast fertilizer efficiency, and strong fertilizer. The effect of improving soil and fertilizing. [0003] Due to factors such as volatilization, leaching and soil fixation, the utilization rate of nitrogen fertilizer in traditional chemical fertilizers has been low. The seasonal utilization rate of nitrogen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
CPCY02A40/22Y02P60/21
Inventor 宋宁宁李绍静宗海英刘君
Owner QINGDAO AGRI UNIV
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