GO/Mn modified corncob charcoal organic fertilizer, preparation method and application thereof

A biochar and corncob technology, applied in the field of fertilizers, can solve the problems of not meeting the needs of crop growth, affecting the increase of crop yield and quality, low utilization rate of trace elements, etc., to improve the rhizosphere environment, high added value of products, improved Effects of structure and porosity

Inactive Publication Date: 2019-06-14
QINGDAO AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The macronutrient 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 role 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 fertilizer is only 30% to 40%, and the seasonal utilization rate of phosphorus fertilizer is only about 10% to 20%. The element utilization rate is lower, and it is difficult to fully exert its effect when applied in the season
The low utilization rate of fertilizers not only affects crop yield and quality, reduces economic benefits, but may also cause a series of ecological and environmental problems

Method used

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  • GO/Mn modified corncob charcoal organic fertilizer, preparation method and application thereof

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preparation example Construction

[0036] The raw material of the organic fertilizer provided by the invention includes GO / Mn modified corncob biochar. In parts by weight, the GO / Mn modified corncob biochar is preferably 22-28 parts, more preferably 25 parts. The preparation method of described GO / MnGO / Mn modified corn cob biochar comprises the following steps:

[0037] 1) mixing corncob powder and graphene oxide to obtain a mixture;

[0038] 2) carbonizing the mixture at 90-110° C. for 55-65 minutes to obtain biochar raw materials;

[0039] 3) mixing the biochar raw material and manganese chloride solution, and carbonizing at 500-600° C. for 3-5 hours to obtain the primary modified biochar;

[0040] 4) Remove ash from the modified biochar primary product to obtain GO / Mn modified corncob biochar.

[0041] In the present invention, the corncob powder is preferably obtained by removing surface attachments from corncobs, crushing and sieving. The method for removing surface attachments is preferably to wash th...

Embodiment 1

[0067] A preparation method of GO / Mn modified corn cob biochar-based organic fertilizer, comprising the following steps:

[0068] Weigh the following raw materials: 20kg of GO / Mn modified corncob biochar, 40kg of decomposed bean cake dregs, 18kg of fish bone meal, 10kg of enzyme residue, 7kg of biological humic acid, 5kg of molasses, 3kg of Bacillus subtilis compost starter and fiber Sulfase 0.35kg.

[0069] 1) Soybean cake dregs decomposing: inoculate Rhodotorula gum OP11 into bean cake dregs for aerobic fermentation and decomposing. Adjust the water content of bean cake dregs to 60%, and the concentration of bacteria solution is about 2×10 8 The spore suspension of Rhodotorula japonicus OP11 per spore / mL was added to bean cake dregs according to the inoculum amount of 1.5%, fully mixed and stirred, and naturally fermented for 12 days. The bean cake dregs are naturally air-dried to normal temperature, dried, pulverized in a pulverizer, and passed through a 20-mesh sieve to ...

Embodiment 2

[0079] A preparation method of GO / Mn modified corn cob biochar-based organic fertilizer, comprising the following steps:

[0080] Weigh the following raw materials by weight: 25kg of GO / Mn / biomass charcoal, 25kg of decomposed bean cake dregs, 15kg of fish bone meal, 15kg of enzyme residue, 5kg of biological humic acid, 3kg of molasses, 3kg of Bacillus subtilis compost starter and cellulose Enzyme 0.15kg.

[0081] 1) Decomposition of bean cake dregs: Inoculate Rhodotorula japonicus OP11 into bean cake dregs for aerobic fermentation and decomposition. Adjust the water content of bean cake dregs to 70%, and the concentration of bacteria solution is about 1×10 7 spores / mL Rhodotorula gum OP11 spore suspension was added to bean cake dregs according to the inoculum amount of 1%, fully mixed and stirred, and naturally fermented for 15 days. The decomposed bean cake dregs are naturally air-dried to normal temperature, dried, pulverized in a pulverizer, and passed through a 20-mesh s...

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Abstract

The invention provides a GO/Mn modified corncob charcoal organic fertilizer, a preparation method and an application thereof and belongs to the technical field of fertilizers. The organic fertilizer is prepared by fermenting the following raw materials: 20-30 parts of modified corncob charcoal, 25-45 parts of rotten bean cake residue, 10-15 parts of ferment residue, 10-15 parts of fishbone dust, 5-7 parts of biologic humic acid, 3-5 parts of molasses, 2-4 parts of bacillus subtilis compost leavening agent and 0.15-0.3 part of cellulase. The modified corncob charcoal is modified with graphene oxide and Mn. The rotten bean cake residue is prepared by naturally fermenting bean cake residue in rhodotorula mucilaginosa OP11 strain with preservation number of CGMCC No.13540. When the organic fertilizer is applied to corn planting, organic content of soil can be supplemented, water and nutrition can be effectively preserved and soil fertility can be promoted. The GO/Mn modified corncob charcoal organic fertilizer is an ideal organic fertilizer and is capable of achieving the effects of reducing fertilizer and preserving fertilizer.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a GO / Mn modified corncob biochar-based organic fertilizer and a preparation method and application 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04A01G22/20C05G3/80
Inventor 王芳丽宋宁宁
Owner QINGDAO AGRI UNIV
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