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A preparation method of fully degradable layered structure rice seedling tray

A technology for raising rice seedlings and layered structure is applied in the field of raising rice seedlings, which can solve the problems of inability to degrade plastic seedling trays, poor formability of degradable seedling raising substrates, and inability to realize soilless cultivation in paper-based seedling trays, thereby saving plastic treatment costs. , the effect of reducing environmental and soil pollution, and saving the cost of use

Inactive Publication Date: 2017-06-30
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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  • A preparation method of fully degradable layered structure rice seedling tray

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specific Embodiment approach 1

[0021] Specific embodiment one: a kind of preparation method of fully degradable layered rice seedling raising tray in this embodiment is specifically carried out according to the following steps:

[0022] Step 1: Preparation of rice stalk biochar: use dried rice straw, use muffle furnace equipment, heat to 500°C, and under oxygen-limited conditions, put rice straw into it 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;

[0023] In this step, the dried rice straw is put into a muffle furnace and heated to 500° C., which is the optimal charcoal production temperature obtained by pyrolyzing 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;

[0024] Step 2: Nitriding modification of rice stalk biochar: 35 parts by mass of ammonium nitrate are fully dissolved in distilled water with 100 ...

Embodiment 1

[0032] Example 1: Three kinds of formulas were used to carry out seedling cultivation experiments with Longdao No. 16, the seeding rate per tray was 80g / pan, about 3800 seeds, and three trays were sown with the same formula. Comparative sample: plastic floppy disk + seedling soil and seedling soil. in:

[0033] Formula 1: 35 parts of nitrogenized biochar, 35 parts of fungus bran compost, 30 parts of pulp, 0.5 parts of seedling strengthening agent;

[0034] Formula 2: 30 parts of nitrogenized biochar, 40 parts of fungus bran compost, 30 parts of pulp, 0.5 parts of seedling strengthening agent;

[0035] Formula 3: 30 parts of nitrogenized biochar, 30 parts of fungus bran compost, 40 parts of pulp, 0.5 parts of seedling strengthening agent;

[0036] The experimental results between formula 1, formula 2, formula 3, plastic floppy disk + seedling soil and seedling soil are shown in the table below:

[0037]

[0038] By comparing formula 1, formula 2 and formula 3 in the above...

specific Embodiment approach 2

[0039] 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 7 mm, and the mass per unit area is 0.25 kg. / m 2 . The air permeability of the upper layer fiber mat and the lower layer fiber mat of such 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, in rice seedling raising, there are many kinds of degradable substrates and seedling trays. Due to the poor formability of seedling raising substrates, the use of supporting containers is required, which increases the intensity of seedling raising operations. And the paddy rice seedling raising dish of present application mostly is based on plastic pot body floppy disk. Although the cost is low, it is difficult to recycle, and the fact that plastics do not degrade for a hundred years puts a lot of pressure on the environment. In addition, although paper-based seedling trays can be fully degraded, they still need the combined application of seedbed soil, which cannot achieve true soilless cultivation. At the same time, the utilization of remaining straw resources has become an urge...

Claims

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Application Information

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Patent Type & Authority Patents(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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