Multilayer rice straw matrix block for machine-transplanted seedlings and seedling raising method

A technology of rice straw and matrix block, which is applied in the field of agricultural waste resource utilization, can solve the problems of cumbersome paving process of bulk straw matrix, low seedling rate of rice seeds, large consumption of manpower and material resources, etc., so as to reduce manpower paving. Process, excellent packing performance, and the effect of improving utilization

Active Publication Date: 2019-11-22
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the existing problems in the prior art for machine-transplanted rice seedling-raising matrix blocks, the straw utilization rate of the matrix block with straw as the main component is low, the seedling rate of rice seeds is not high, the use of adhesives, the matrix block At the same time, solve the problems of cumbersome paving process of bulk straw substrate, huge consumption of manpower and material resources, low degree of fiber interweaving and low mechanical strength

Method used

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  • Multilayer rice straw matrix block for machine-transplanted seedlings and seedling raising method
  • Multilayer rice straw matrix block for machine-transplanted seedlings and seedling raising method
  • Multilayer rice straw matrix block for machine-transplanted seedlings and seedling raising method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) adjust the moisture content of recovered crop straw (rice and wheat straw) to 25%, and prepare undecomposed straw fibers with an average length of 30 mm after the straw is kneaded and pulverized, and set aside;

[0037] Knead and pulverize straw fibers with an average length of 30mm and fully mix them with dung water with a concentration of 5%. Control at 55%; the fully mixed material is filled into a fermenter with a mechanical vent at the bottom for the fermentation process, and 15kg of cow dung water with a concentration of 1% is added every day, turned every 5 days, and part of it is taken out after 10 days of fermentation Straw fiber, that is, the straw fiber that has been decomposed for 10 days, is used for later use; after 10 days of fermentation, the color of the material becomes darker and slightly softened;

[0038] Continue to ferment the remaining straw fibers, turn the pile fully and evenly each time, add 8kg of dung water every day, keep the temperature...

Embodiment 2

[0065] Example 2 Preparation of multi-layer straw matrix block

[0066] 1) Adjust the moisture content of the recovered crop straw to 25%, and prepare undecomposed fiber straw with an average length of 15 mm after the straw is kneaded and pulverized, and set aside;

[0067] Fully stir and mix the kneaded and crushed undecomposed straw fiber with 1% manure water, add 150kg sheep manure water for every 75kg straw fiber, and control the moisture content of the selected cow manure water at 60%; the fully mixed material is loaded Enter the fermentation tank with a mechanical vent at the bottom for the fermentation process, add 15kg of sheep manure water with a concentration of 1% every day, turn the pile once every 5 days, and take out part of the straw fiber when it is fermented for 10 days, which is the straw fiber that has been decomposed for 10 days. Standby; the straw fiber material obtained by this fermentation becomes darker and slightly softened;

[0068] Continue to ferme...

Embodiment 3

[0078] Example 3 Preparation of multi-layer straw matrix block

[0079] 1) Adjust the moisture content of the recycled crop straw to 25%, and prepare fiber straw with an average length of 20 mm after the straw is kneaded and crushed, which is the unripe straw fiber, and is ready for use;

[0080] The kneaded and crushed undecomposed straw fiber is fully mixed with the manure water with a concentration of 3%, and 150kg of pig manure water is added to every 75kg of straw fiber, and the moisture content of the selected pig manure water is controlled at 75%; the fully mixed material is filled into The fermenter with a mechanical vent at the bottom is used for the fermentation process, and 15kg of pig manure water with a concentration of 1% is added every day, and the pile is turned every 5 days. After 10 days of fermentation, some straw fibers that have been decomposed for 10 days are taken out for use; the color of the material becomes darker. , with slight softening.

[0081] T...

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Abstract

The invention discloses a multilayer rice straw matrix block for machine-transplanted seedlings and a seedling raising method. The method comprises the steps that 1), non-decomposed straw fiber with the length being 5-30 mm, 10-day-decomposed straw fiber and 20-day-decomposed straw fiber are prepared; 2), decomposed straw fiber is prepared; 3), decomposed and extruded straw fiber is prepared through a twin-screw extruder; 4), pulping is conducted by means of the non-decomposed straw fiber, the decomposed straw fiber and the decomposed and extruded straw fiber in sequence, suction molding is conducted, and the multilayer rice straw matrix block is obtained. The matrix block is small in bulk density, high in water-holding porosity, good in mechanical property during transplantation and highin rice seedling rate; the matric block is applicable to machine-transplanted seedling raising.

Description

technical field [0001] The invention belongs to the field of resource utilization of agricultural waste, and in particular relates to a multilayer rice substrate block for machine-transplanted rice seedlings and a multilayer rice substrate block with differently processed straws as raw materials and a seedling raising method thereof. Background technique [0002] The total output of grain and rice in Jiangsu Province ranks fourth in the country, and occupies a pivotal position in my country's grain and rice supply. There are more than 1 billion plastic seedling trays and more than 200 million discarded seedling trays. Every year, the disposal of waste straw and discarded seedling trays is faced with huge environmental pollution pressure, and Jiangsu is the first batch of provinces in the country to successfully implement a comprehensive ban on straw burning. The phenomenon of straw burning has basically been eliminated. However, long-term excessive returning of straw to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/22A01G24/20A01G24/30A01G24/10A01G22/22A01G31/00
CPCA01G31/00A01G22/22A01G24/10A01G24/20A01G24/22A01G24/30
Inventor 雍宬黄红英孙恩惠曲萍徐跃定张晶
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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