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A method for preparing rice light-duty soilless seedling-raising substrate by using biological chelation technology

A technology of biological chelation and soilless seedling cultivation, applied in the direction of application, fertilizer mixture, fertilization device, etc.

Active Publication Date: 2018-05-29
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A new, efficient, safe, green, and environmentally friendly light-duty soilless seedling-raising substrate, rarely reported at home and abroad

Method used

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  • A method for preparing rice light-duty soilless seedling-raising substrate by using biological chelation technology
  • A method for preparing rice light-duty soilless seedling-raising substrate by using biological chelation technology
  • A method for preparing rice light-duty soilless seedling-raising substrate by using biological chelation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Dry distiller's grains and coarsely grind them to a particle size of less than 10mm for later use. The drying conditions are: drying temperature 50°C, drying 3h;

[0022] (2) Add distiller's grain powder and phosphate rock powder obtained by coarse crushing to the biochelation reactor at a weight ratio of 20:80, and add citric acid at a weight ratio of 1:200 between additives and coarsely crushed distiller's grain powder, and control The speed of the host of the biochelation reactor is 1500r / min, the temperature is 55°C, the pH value of the reaction solution is 7, and the biochelation reaction time is 3h;

[0023] (3) The biochelation material after the biochelation reaction and the rice straw powder with a particle size of 10mm are prepared at a weight ratio of 50:50 to obtain a light soilless seedling raising substrate, which is measured and packaged.

[0024] Table 1 Nutrient soil and light soilless matrix main property data of the present invention

[0025] ...

Embodiment 2

[0029] (1) Dried rice distiller's grains and coarsely crushed them with a particle size of less than 10 mm for later use, wherein the drying conditions were as follows: drying temperature 40°C, drying 4 hours;

[0030] (2) Add distiller's grain powder and phosphate rock powder obtained by coarse crushing to the biochelation reactor at a weight ratio of 20:85, and add citric acid at a weight ratio of 1:300 between additives and coarsely crushed distiller's grain powder, and control The host speed of the biochelation reactor is 2000r / min, the temperature is 60°C, the pH value of the reaction solution is 6, and the biochelation reaction time is 4h;

[0031] (3) After the biochelation reaction, the biochelation material and wheat straw powder with a particle size of 20 mm were prepared at a weight ratio of 50:70 to obtain a light soilless seedling raising substrate, which was measured and packaged.

[0032] Table 3 Nutrient soil and light soilless substrate main attribute data of ...

Embodiment 3

[0037] (1) Dry the brewer's grains and coarsely grind them to a particle size of less than 10mm for later use, wherein the drying conditions are: drying temperature 60°C, drying for 2 hours;

[0038] (2) Add distiller's grain powder obtained by coarse crushing and phosphate rock powder into the biochelation reaction kettle at a weight ratio of 20:95, and add humic acid at a weight ratio of 1:250 between additives and coarsely crushed distiller's grain powder, and Control the host speed of the biochelation reactor to 1500r / min, the temperature to 70°C, the pH value of the reaction solution to 8, and the biochelation reaction time to 4h;

[0039] (3) The biochelation material after the biochelation reaction was prepared with rice straw powder and rapeseed straw powder with a particle size of 15 mm at a weight ratio of 50:60 to obtain a light soilless seedling raising substrate, which was measured and packaged.

[0040] Table 5 nutrient soil and light soilless matrix main attribu...

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Abstract

The invention discloses a method for preparing a light-duty soilless seedling-raising substrate for rice by using biochelation technology, which belongs to the technical field of preparation methods for light-duty soilless seedling-raising substrates for rice. The method includes the following process steps: 1) drying and pulverizing the distiller's grains; 2) mixing the distiller's grains obtained in step 1) with phosphate rock powder, adding them to a biochelation reaction kettle, and adding additives at the same time to perform biochelation on the distiller's grains reaction, the additive is one or both of humic acid and citric acid; 3) the biological chelation material obtained in step 2) is added with straw powder and mixed to obtain a light soilless seedling-raising substrate for rice. The distiller's grains of the present invention are firstly treated in the early stage, and then processed by biological chelation reaction. At the same time, the conditions of the biological chelation reaction are reasonably controlled, and then prepared with straw powder to prepare a new, efficient, safe, green, and environmentally friendly light soilless Seedling-raising substrate is the first choice for the development of green organic agriculture.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of rice light-duty soilless seedling-raising substrates, and in particular relates to a method for preparing rice light-duty soilless seedling-raising substrates by using biochelation technology. Background technique [0002] With the continuous expansion of the planting area of ​​machine-transplanted rice in my country, commercialization, large-scale and standardized seedling raising will be an inevitable trend in rice production, but the preparation of nutrient soil for seedling raising has become a difficult problem for mechanized seedling raising, which is the key to promoting rice machine-transplanted rice in a large area in my country. One of the main limiting factors. In order to solve the problems of difficulty in taking nutrient soil and destroying vegetation and environment in rice seedling raising, protect farmland soil resources, and alleviate the tense situation of rural la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
Inventor 张均华金千瑜赵夫涛朱练峰禹盛苗
Owner CHINA NAT RICE RES INST