Seedling raising matrix and seedling raising method for soilless rice plate

A technology for raising seedling substrate and rice is applied in the directions of rice cultivation, soilless cultivation, botanical equipment and method, etc., and achieves the effects of simple and convenient operation, improved machine-planting efficiency and low cost.

Active Publication Date: 2012-07-18
CHINA NAT RICE RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the soilless seedling substrate for seedlings of field crops, especially the research and application of soilless substrate for rice machine-transplanted seedlings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take 100 ml of phosphate buffer solution with a pH of 4.60, stir to dissolve 150g of acrylamide and 0.60g of N,N'-methacryloyl, stir and add 80ml of water, stir and add 0.8g of potassium persulfate, stir and add 0.045g of anhydrous Sodium bisulfate, stir evenly, polymerize in a plastic container to solidify, crush through a 18-mesh sieve (1mm), weigh 60g of the powder and absorb water fully, mix evenly 100g of fine soil, mix evenly 150g of buds, pour 1 In a seedling tray, smooth it out, and raise seedlings according to conventional methods in the field.

[0026] Table 1 Quality of rice seedlings raised in soilless seedling substrate trays

[0027] Variety deal with Plant height cm number of green leaves leaf age root length cm The number of Stem base width mm Grain rate of seedlings% aboveground dry species g root dry weight g Guodao No.6 Soilless Seedling Substrate 9.75 2.67 2.42 5.57 8.27 0.30 96.67 0.0105 0.0036 pr...

Embodiment 2

[0029] Take 100 ml of pH 4.60 phosphate buffer solution, stir to dissolve 150g of acrylamide, stir and add 50ml of water, dissolve 0.60g of N,N'-methacryloyl in 10ml of water, dissolve 0.8g of potassium persulfate in 10ml of water, and use Dissolve 0.045g of anhydrous sodium bisulfite in 10ml of water. Add anhydrous sodium bisulfate solution, N,N'-methacryloyl solution and potassium persulfate solution to the acrylamide solution successively, stir evenly, carry out polymerization reaction in a plastic container to solidify, and crush through a 18-mesh sieve (1mm), weigh 60g of powder and fully absorb water, mix evenly 100g of fine soil, mix evenly 150g of bud grain, pour it into a seedling tray, smooth it, and raise seedlings in the field according to the conventional method.

[0030] Table 2 Seedling quality of rice seedlings raised in soilless seedling substrate trays

[0031] Variety deal with Plant height cm number of green leaves leaf age root length c...

Embodiment 3

[0033] Take 100 ml of phosphate buffer solution with a pH of 4.60, stir to dissolve 150g of acrylic acid, stir and add 50ml of water, dissolve 0.60g of N,N'-methacryloyl in 10ml of water, dissolve 0.8g of potassium persulfate in 10ml of water, and use 10ml of Dissolve 0.045g of anhydrous sodium bisulfite in water. Add anhydrous sodium bisulfate solution, N,N'-methacryloyl solution and potassium persulfate solution to the acrylic acid solution successively, stir evenly, carry out polymerization reaction in a plastic container to solidify, and crush through a 18-mesh sieve ( 1mm), weigh 60g of powder and fully absorb water, mix evenly with 100g of fine soil, mix evenly with 150g of bud grain, pour it into a seedling tray, smooth it, and raise seedlings in the field according to the conventional method.

[0034] Table 3 Seedling quality of rice seedling raised in soilless seedling substrate tray

[0035] Variety deal with Plant height cm number of green leaves l...

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Abstract

The invention relates to a seedling raising matrix and a seedling raising method for a soilless rice plate, and belongs to the technical field of plate raising matrixes of crop seedlings. The seedling raising matrix is characterized by being prepared by the following steps of: preparing a phosphate buffer solution of which the pH value is 4.0 to 5.5, preparing acrylic acid and / or an acrylamide solution by using the phosphate buffer solution, adding N,N'-methylene bisacrylamide serving as a crosslinking agent, stirring, dissolving, adding water and manganese ferrite black or fine earth before polymerization, and stirring uniformly; adding an initiator and a stabilizer into a reaction mixed solution, stirring uniformly, and performing crosslinking reaction at room temperature to generate a solidified substance; and after the reaction is finished, crushing the solidified substance by using a crusher, and sieving to obtain the final product. According to the seedling raising matrix and the seedling raising method for the soilless rice plate, the matrix is high in hydroscopicity and water-retaining property, the cultivation of seedlings with robust roots is facilitated, and particularly, the seedling raising matrix and the seedling raising method are suitable for the plate seedling raising of a mechanical rice transplanter; and the seedling raising matrix and the seedling raising method are easy and convenient to operate by farmers or seedling raising factories, little in using amount and low in cost, and the acrylic acid and acrylamide polymers are easy to degrade in fields.

Description

technical field [0001] The invention belongs to the technical field of substrates for raising seedlings in trays, and in particular relates to a substrate for raising seedlings in trays without soil and a seedling raising method. Background technique [0002] Traditional rice machine-transplanted seedlings are mainly based on field soil or nutrient soil. The specifications of the general seedling-raising trays are 58cm in length, 28cm in width and 2cm in height. With such a seedling tray, the average amount of field soil or nutrient soil needed for machine-transplanted seedlings per acre is about 80 kg. Based on the area of ​​200,000 mu of machine-transplanted rice in a certain area, 133 mu of fertile land is needed as a soil source for machine-transplanted seedlings every year, resulting in a serious loss of surface mellow soil. At the same time, machine-transplanted seedlings and seedlings are mainly cooperatives with professional services. The area of ​​machine-transplan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00A01G16/00A01G31/00A01C1/00A01G22/22
CPCY02P60/21
Inventor 闻丽邵国胜王艳丽欧阳由男
Owner CHINA NAT RICE RES INST
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