Seedling growing matrix block having nutrient controlled-release function and preparation method thereof

A technology for raising seedling substrates and substrate blocks, which can be applied to planting substrates, botanical equipment and methods, culture medium, etc., can solve the problems of low survival rate, easily broken and damaged roots, poor permeability, etc. Robust growth and reduced artificial effects

Active Publication Date: 2017-05-31
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] These matrix blocks generally need to be mixed with slow-release fertilizers, which need to be formed by hot pressing, and are made of soil lumps for seedling cultivation, which are pressed from relatively viscous soil, which has poor permeability and low survival rate. easily broken roots
At present, there is no report on the use of biodegradable adhesives with both adhesiveness and nutrient release function to assist matrix agglomeration

Method used

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  • Seedling growing matrix block having nutrient controlled-release function and preparation method thereof
  • Seedling growing matrix block having nutrient controlled-release function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 prepares the seedling-raising matrix block with nutrient controlled release function

[0027] 1. Preparation of adhesive

[0028] Prepare a mixed aqueous solution of potassium hydroxide with a final concentration of 1mol / L urea and 0.01mol / L, heat to 95°C, add soybean protein to it, heat and stir for 1 hour, then naturally cool and discharge the material to obtain a hydrolyzed solution with a solid content of 15%. Protein (in the specific operation process, the solid content of hydrolyzed protein can be selected within the range of 10-15%);

[0029] Add formaldehyde in the reaction kettle, adjust pH=7.0 with (mass fraction is 20%) potassium oxide solution (in the specific operation process, the scope of pH can be selected between 7.0-7.5); add urea for the first time (this embodiment In the process, the amount of urea added for the first time is 75% of the total amount of urea, in the specific implementation process, you can choose between 70-75% of the to...

Embodiment 2

[0039] 1. Preparation of matrix

[0040] In terms of volume percentage, measure 80% of coconut peat, 5% of peat, 5% of perlite, and the rest is vermiculite, and mix well;

[0041] 2. Measure shredded coconut and adhesive (prepared in Example 1) according to the matrix quality 8%, 50% respectively, put into the mixed matrix, and mix evenly;

[0042] 3. Put the mixed material into a plug tray with 72 holes; put the plug tray into an oven at 60° C. for 1 hour, and dry it to form the seedling-growing matrix block with the function of controlled nutrient release.

Embodiment 3

[0044] 1. Preparation of matrix

[0045] In terms of volume percentage, measure 70% of shredded coconut, 10% of peat, 10% of perlite, and the rest is vermiculite, and mix well;

[0046] 2. Measure shredded coconut and adhesive (prepared in Example 1) according to the substrate quality 10%, 50% respectively, put into the mixed substrate, and mix evenly;

[0047]3. Put the mixed material into a plug tray with 72 holes; put the plug tray into an oven at 60° C., and dry it for 3 hours to obtain the seedling-raising matrix block with the function of nutrient controlled release.

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Abstract

The invention provides a matrix block having a nutrient controlled-release function. A matrix is formulated by 70-80% of coconut coir, 5-10% of peat, 5-10% of perlite and 5-10% of vermiculite, coconut shred accounts for 5-10% of mass of the matrix, and an adhesive is soybean protein modified urea-formaldehyde resin adhesive and accounts for 32-50% of the mass of the matrix. The adhesive can bond the matrix to form the block and can provide nutrient at a seedling stage in the process of degrading, and fertilizing is not needed from the seedling stage to a growing stage.

Description

technical field [0001] The invention relates to a seedling-raising substrate in the technical field of agricultural production and a processing technology thereof, in particular to a seedling-raising substrate block with a nutrient controlled release function and a preparation method thereof. Background technique [0002] In our country, vegetables and commercial crops are planted by transplanting seedlings. Traditional seedlings mainly rely on manual work, which is labor-intensive, time-consuming, and inefficient. Seedling cultivation in plug trays is labor-saving, labor-saving, high-efficiency, sterile, free from diseases and insect pests, and is convenient for the promotion of fine varieties and standardized management of seedling cultivation. [0003] At present, during the mechanized transplanting process of the seedling substrates on the market, that is, during the process of taking out the seedling trays and moving them to the ground and then covering the soil, the se...

Claims

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Application Information

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IPC IPC(8): A01G31/00
CPCA01G24/00
Inventor 曲萍夏礼如汪敏冯敏王合叶
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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