Multilayer straw substrate for rice hole tray dry nursery seedling and preparation method and application thereof

A technology for dry seedling raising and straw is applied to the field of multilayer substrates for dry seedling raising in rice plug trays and the field of preparation thereof, which can solve the problems of low utilization rate of straw and low seedling rate of rice seeds, and achieve excellent mechanical properties and strong mechanical properties. , the effect of neat emergence

Active Publication Date: 2019-02-22
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to solve the problem of low straw utilization rate and low seedling rate of rice seeds in the substrate for rice seedling raising in the prior art with straw

Method used

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  • Multilayer straw substrate for rice hole tray dry nursery seedling and preparation method and application thereof
  • Multilayer straw substrate for rice hole tray dry nursery seedling and preparation method and application thereof
  • Multilayer straw substrate for rice hole tray dry nursery seedling and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Preparation of multilayer straw substrate

[0036] 1) The recovered crop stalks adjust the moisture content to 25%. After the straws are rubbed and crushed, they are prepared into short fiber straws with an average length of 2cm and long fiber straws with an average length of 6cm, for use;

[0037] 2) Mix the long straw fibers and short straw fibers obtained in step 1) with 1% cow dung water, and add 150 kg of cow dung water for every 75 kg of stalk fibers. The moisture content of the selected cow dung water is controlled at about 55%. ; The fully mixed materials are filled into a fermentation tank with a mechanical vent at the bottom for fermentation. 15kg of cow dung water with a concentration of 1% is replenished every day, and the pile is turned over every 7 days. When the fermentation is 20 days and 40 days, they are added separately 10kg long straw fiber or short straw fiber, turn the pile fully and evenly each time, keep the temperature error of each part of the fe...

Embodiment 2

[0056] Example 2 Preparation of multi-layer straw substrate

[0057] 1) The recovered crop stalks adjust the moisture content to 55%. After the straws are rubbed and crushed, they are prepared into short fiber straws with an average length of 3cm and long fiber straws with an average length of 5cm, for use;

[0058] 2) Mix the long straw fibers and short straw fibers obtained in step 1) with the sheep manure water with a concentration of 3%, and add 150kg of sheep manure water for every 75kg of straw fibers. The moisture content of the selected cow manure water is controlled at about 60%. ; The fully mixed materials are filled into a fermentation tank with a mechanical vent at the bottom for fermentation. 15kg of sheep dung water with a concentration of 3% is added every day, and the pile is turned over every 7 days. When the fermentation is 20 days and 40 days, they are added separately 10kg long straw fiber or short straw fiber, turn the pile fully and evenly each time, keep the ...

Embodiment 3

[0069] 1) The recovered crop stalks adjust the moisture content to 75%. After the straws are rubbed and crushed, they are prepared into short fiber straws with an average length of 4cm and long fiber straws with an average length of 8cm, for use;

[0070] 2) Mix the long straw fiber and short straw fiber obtained in step 1) with 5% pig manure water, and add 150kg pig manure water for every 75kg of straw fiber. The moisture content of the selected pig manure water should be controlled at about 75%. ; The fully mixed materials are filled into a fermentation tank with a mechanical vent at the bottom to carry out the fermentation process. 15kg of pig manure water with a concentration of 5% is added every day, and the pile is turned over every 7 days. When the fermentation is 20 days and 40 days, they are added separately 10kg long straw fiber or short straw fiber, turn the pile fully and evenly each time, keep the temperature error of each part of the fermentation tank within 5℃ after...

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Abstract

The invention discloses a multilayer straw substrate for rice hole tray dry nursery seedling. The multilayer straw substrate comprises an expanded long stalk fiber layer, an expanded short stalk fiberlayer, a decomposed long stalk fiber layer, a decomposed short stalk fiber layer and a substrate layer; for the multilayer straw substrate, crop straw fiber obtained after rubbing and crushing are conducted is mixed with dung water for fermentation, decomposed straw fiber is obtained, by means of the extrusion expansion process, cellulose in long fiber straw is relieved, the cross-linking property between fiber and fiber is weakened, it is guaranteed that nutrient elements are reserved to the maximum extent and fully absorbed by rice seedlings, it is also guaranteed that the rice seedling rate is high, and additional fertilizer is not needed in the seedling raising stage; the root vigor is high, seedling emergence is neat, the cost is low, the dosage of the expensive substrate such as grass carbon is greatly reduced, the straw is recycled, and the phenomenon that due to misuse, the environment is affected is avoided.

Description

Technical field [0001] The invention relates to the field of resource utilization of agricultural wastes, in particular to a multi-layer substrate for dry-growing paddy rice seedlings and a preparation method thereof. Background technique [0002] Rice plug seedling raising technology refers to the use of plastic plug trays as seedling containers, using a mixture of grass charcoal, perlite, vermiculite and other materials as the growth substrate for rice seedlings, and providing seedling nutrients by adding proper amount of fertilizer or watering nutrient solution in advance A soilless way of raising seedlings. The outstanding advantages of rice plug seedling cultivation are that the distance between the roots of the seedlings is kept, the roots and the substrate are tightly bonded, the root lumps are not easy to fall, and the roots are not easy to damage during transplanting. After planting, the seedlings grow rapidly and are suitable for long-distance transportation. [0003] Cu...

Claims

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Application Information

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IPC IPC(8): A01G24/22A01G24/20A01G24/28A01G24/15A01G22/22
CPCA01G22/22A01G24/15A01G24/20A01G24/22A01G24/28
Inventor 雍宬孙恩惠黄红英曲萍徐跃定黄莹吴华山曹云张晶
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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