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Method for improving rice seedling raising soil by using artificial humus

A technology of rice seedling soil and humus, which is applied in the field of agricultural production, can solve the problems of promoting the growth of seedlings caused by diseases and insect pests, difficulties in the utilization of solid waste resources, labor and time-consuming fertilization procedures, etc., so as to promote the growth of seedlings, reduce the cost of raising seedlings, improve The effect of seedling quality

Active Publication Date: 2022-02-01
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the current northern rice seedling soil is nowhere to be taken, the cost of soil extraction is rising, the utilization of solid waste is difficult, the cost of production and transportation is high, the labor intensity of fertilization is high, the fertilization process is labor-intensive and time-consuming, and the soil obtained brings Pests and diseases and the poor effect of promoting the growth of seedlings, and provide a method for improving rice seedling soil with artificial humus

Method used

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  • Method for improving rice seedling raising soil by using artificial humus
  • Method for improving rice seedling raising soil by using artificial humus
  • Method for improving rice seedling raising soil by using artificial humus

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specific Embodiment approach 1

[0015] Specific embodiment one: a kind of method of artificial humus improving paddy rice seedling raising soil of this embodiment is finished according to the following steps:

[0016] One, prepare artificial humus seedling fertilizer:

[0017] ①. Grinding the carbon derived from hydrothermal humification to obtain solid reaction product I;

[0018] ②. First, dissolve the solid artificial humic acid into the alkaline solution, and then dilute with water to obtain the liquid reaction product II;

[0019] 2. First, select the local soil as the seedling-raising substrate, then mechanically mix it with the solid reaction product Ⅰ, spray the liquid reaction product Ⅱ after packing, and obtain artificial humus-improved rice seedling-raising soil, and finally raise seedlings according to the seedling-raising process.

specific Embodiment approach 2

[0020] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the preparation method of the hydrothermal humification derived charcoal described in step one ① is completed according to the following steps:

[0021] First, the agricultural waste biomass is washed, dried, ground and sieved, then the biomass powder is added to a strong alkaline aqueous solution, and transferred to a high-pressure reactor for hydrothermal humification reaction, and the solid-liquid separation is carried out by suction filtration. The solid is collected, washed and dried to obtain hydrothermal humification derived carbon; the liquid is collected, and the pH value of the reaction product is adjusted to acidic with dilute hydrochloric acid, the solid is precipitated, the solid and liquid are separated by centrifugation, and finally the solid is collected, washed and dried to obtain Artificial humic acid solids. Other steps are the same as in the first embodime...

specific Embodiment approach 3

[0022] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the agricultural waste biomass is eucalyptus leaves, rice straw, soybean straw or corn straw; in step 1, the agricultural waste biomass is first Wash 3 to 5 times, dry at 50°C to 70°C, grind and pass through a 60-mesh standard sieve, then add 20g to 25g of biomass powder into 180mL to 250mL of strong alkaline aqueous solution, and transfer to a high-pressure reactor The hydrothermal humification reaction is carried out in a hydrothermal humification reaction, the temperature of the hydrothermal humification reaction is 180 ° C ~ 220 ° C, the pressure is 1.0 MPa ~ 3 MPa, the reaction time is 20 h ~ 24 h, the solid and liquid are separated by suction filtration, and the solid and liquid are collected. A solid-liquid reaction product is obtained; the strong alkaline aqueous solution is that a strong base is dissolved in deionized water, wherein the volume ratio of the quality of the strong ba...

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Abstract

The invention discloses a method for improving rice seedling raising soil through artificial humus, and relates to the technical field of agricultural production, in particular to a method for improving the rice seedling raising soil. The invention aims to solve the problems that the existing northern rice seedling raising soil is nowhere to take, the soil taking cost is increased, the solid waste resource utilization is difficult, the production and transportation cost is high, the fertilization labor intensity is high, the fertilization process wastes labor and time, and the taken soil brings plant diseases and insect pests and has a poor seedling growth promoting effect. The method comprises the following steps: 1, preparing an artificial humus seedling raising fertilizer; 2, selecting field soil as a seedling raising substrate, mechanically mixing the seedling raising substrate with the solid reaction product I, loading into a tray, spraying a liquid reaction product II, and finally raising seedlings according to a seedling raising process. The quality of seedlings raised by the artificial humus improved rice seedling raising soil is superior to that of the seedlings raised by a traditional seedling raising method, root systems are developed, the seedlings are robust, diseases and insect pests in the seedling stage are few, the seedling emergence rate is high, the seedling raising cost is remarkably reduced, and the invention is suitable for large-scale popularization and application and has important practical application and agricultural production value.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to a method for improving seedling soil. Background technique [0002] Hydrothermal humification technology (HTH) synthesizes a variety of soil components on the basis of simulating geochemical processes, and cracks and recombines the main components of solid waste biomass such as straw to synthesize artificial humus. Artificial humus is a high-molecular organic polymer with a complex structure, containing a large number of carboxyl groups, quinone groups and phenolic hydroxyl groups. It has the functions of soil improver and fertilizer enhancer, and can effectively improve the stress resistance of crops. However, the soil is currently degraded seriously, especially the seedling soil that requires high soil quality. Taking Heilongjiang Province as an example, the annual amount of soil taken for rice seedling cultivation is equivalent to the cultivated land area of ​​...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/12A01G24/10A01G24/30
CPCA01G24/12A01G24/10A01G24/30
Inventor 杨帆袁月兰依博程魁
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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