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Preparation method for total-degradation layer-structured rice seedling-growing tray

A rice seedling raising and layered structure technology, applied in the field of rice seedling raising, can solve the problems that plastic seedling trays cannot be degraded, the degradable seedling raising matrix has poor formability, and paper-based seedling trays cannot realize soilless cultivation, etc., so as to save plastic processing costs , reduce environmental and soil pollution, and save the cost of use

Inactive Publication Date: 2015-12-23
JIAMUSI 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 provide a method for preparing a fully degradable layered structure rice seedling tray to solve the problem that the plastic seedling tray cannot be degraded in the existing rice seedling raising tray; the degradable seedling raising matrix has poor formability and needs to be used in conjunction with the seedling tray Problem; paper-based seedling tray can not realize the problem of real soilless cultivation

Method used

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  • Preparation method for total-degradation layer-structured rice seedling-growing tray

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Experimental program
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specific Embodiment approach 1

[0020] Specific embodiment 1: The preparation method of a fully degradable layered rice seedling raising tray in this embodiment is specifically carried out according to the following steps:

[0021] Step 1: Preparation of rice stalk biochar: using dried rice stalks, using muffle furnace equipment, heating to 500 ℃, under oxygen-limited conditions, put the rice stalks in the heat for 1 hour to obtain rice stalk biochar, rice The specific surface area of ​​biochar in rod biochar can reach 350m 2 / g, PH is 9.0;

[0022] In this step, the dried rice straw is put into a muffle furnace and heated to 500°C, which is the optimized charcoal production temperature obtained by pyrolysis of the rice straw at 300-600°C. In this step, preparing biochar from straw and returning it to the field is one of the new ways to effectively utilize crop resources;

[0023] Step 2: Nitriding modification of rice stalk biochar: fully dissolve 35 parts by mass of ammonium nitrate in 100 parts by mass of disti...

Embodiment 1

[0031] Example 1: Using three formulas, a seedling cultivation experiment was carried out with Longdao No. 16 with a sowing amount of 80 g per tray, about 3800 seeds, and three trays with the same formula. Comparative sample: plastic floppy disk + seedling soil and seedling soil. among them:

[0032] Formula 1: 35 parts of nitriding biochar, 35 parts of fungus chaff compost, 30 parts of pulp, 0.5 parts of strong seedling agent;

[0033] Formula 2: 30 parts of nitriding biochar, 40 parts of fungus chaff compost, 30 parts of paper pulp, 0.5 parts of seedling strengthening agent;

[0034] Formulation 3: 30 parts of nitriding biochar, 30 parts of fungus chaff compost, 40 parts of pulp, 0.5 parts of strong seedling agent;

[0035] The experimental results between formula 1, formula 2, formula 3, plastic floppy disk + seedling soil and seedling soil are shown in the following table:

[0036]

[0037] According to the comparison of formula 1, formula 2 and formula 3 with plastic floppy disk ...

specific Embodiment approach 2

[0038] Embodiment 2: This embodiment is a further limitation of Embodiment 1. In this embodiment, the upper fiber mat and the lower fiber mat have the same structure, the initial thickness of the upper fiber mat is 7mm, and the unit area mass is 0.25kg / m 2 . The air permeability of the upper fiber mat and the lower fiber mat with such a structure is the best.

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Abstract

A Preparation method for total-degradation layer-structured rice seedling-growing tray relates to the preparation method for the rice seedling-growing tray. The preparation method settles the following problems in existing rice seedling growing: degrading incapability of plastic seedling-growing tray, low moldability of a degradable seedling-growing matrix, requirement for matched use of the seedling-growing tray, and incapability of realizing soilless cultivation. The preparation method of the invention comprises seven steps: a first step, preparing rice straw biological carbon; a second step, performing nitriding modification processing on the rice straw biological carbon; a third step, processing compost; a fourth step, preparing a seedling growing main material; a fifth step, performing acid treatment and drying treatment; a sixth step, performing laying operation by means of a seedling-growing tray mold; and a seventh step, laying a lower-layer fiber felt, the seedling growing main material and an upper-layer fiber felt. According to the preparation method, the waste material of a crop is sufficiently utilized, and total degradation of a rice seedling growing matrix is realized. The seedling growing matrix which is prepared according to the invention can improve the condition of a farmland soil year by year. The preparation method is used for preparing the total-degradation rice seedling-growing tray.

Description

Technical field [0001] The invention relates to a method for preparing a rice seedling raising tray, which belongs to the field of rice seedling raising. Background technique [0002] At present, there are a variety of degradable substrates and seedling tray forms in rice seedling raising. Due to the poor formability of the seedling raising substrate, the use of supporting containers is needed to increase the intensity of the seedling raising operation. At present, most rice seedling raising trays are mainly plastic floppy disks. Although the cost is low, it is difficult to recycle and process, and the characteristic of plastics that are not degradable for a hundred years puts a lot of pressure on the environment. In addition, although the paper-based seedling tray can achieve full degradation, it still requires the coordinated application of seedbed soil, which cannot achieve true soilless cultivation. At the same time, the problem of using surplus straw resources has become a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/10A01G31/00
CPCA01G24/00A01G24/60Y02P60/21
Inventor 姚嘉卢伟刘向东邵东伟董雪
Owner JIAMUSI UNIVERSITY
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