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Seedling culture substrate, preparation method and application thereof in vegetable plug seedling culture

A seedling-raising matrix and plug tray technology is applied to the seedling-raising base and its application field in vegetable plug seedling raising, and can solve the problems of inability to meet the growth requirements of seedlings, increasing the labor cost by the number of water sprays, reducing root ventilation, and the like. Achieve the effect of avoiding the chance of infestation, reducing the rate of loose lumps, and saving ecological resources

Inactive Publication Date: 2010-10-06
HEBEI AGRICULTURAL UNIV.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the soilless cultivation technology disclosed in the prior art, most of the plug seedling substrates adopt a composite substrate with peat as the main raw material, but because peat is a non-renewable resource, large-scale mining will cause ecological environment damage, and the cost is high; in addition , peat, mushroom dregs and other substrates have poor water retention and low water use efficiency, which is more prominent in summer seedling cultivation. The increase in the number of water sprays not only increases the labor cost, but also reduces the aeration of the root system and prolongs the growth of the root system. Seedling cycle; the fertilizer supply for plug seedlings is mainly sterilized chicken manure, and chemical fertilizers are sprayed on the leaves from time to time during the growth of seedlings. This method cannot meet all the fertilizers required for seedling growth, and requires higher technology and more more labor force

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Tomato: 72-hole plug, dry water retention agent volume is 0.4% of vermiculite volume, water retention agent A, B particle size ratio 2:1, nutrient solution volume 50 times the water retention agent volume.

[0031] In order to achieve satisfactory results, this example conducts an experimental study on each step of the tomato plug seedling process, which is summarized as follows:

[0032] 1. Preparation of seedling substrate

[0033] (1) Choose vermiculite with a particle size of 1~3mm as the base material;

[0034] (2) Choose 100 plug trays with 72 holes, each plug requires about 3.5L of vermiculite, and 100 plugs require 350L of vermiculite;

[0035] (3) Calculate the dry water-retaining agent (the main component of the water-retaining agent is acrylamide-acrylate copolymer crosslinked product, purchased from Beijing Hanlimiao New Technology Co., Ltd.) according to the proportion of 0.4% of the total volume of vermiculite, and the amount is 1.4L, water retention The particle s...

Embodiment 2

[0047] Cucumber: 50-hole plug, dry water retention agent volume is 0.3% of vermiculite volume, water retention agent A, B particle size ratio 3:1, nutrient solution volume 40 times the water retention agent volume.

[0048] In this example, an experimental study was conducted on each step of the cucumber plug seedling raising process, and the summary is as follows:

[0049] 1. Preparation of seedling substrate

[0050] (1) Choose vermiculite with a particle size of 1~3mm as the base material;

[0051] (2) Choose 100 plug trays with 50 holes, each plug requires 3.6L of vermiculite, and 100 plugs require 360L of vermiculite;

[0052] (3) Calculate the amount of dry water-retaining agent (the source is the same as in Example 1) based on 0.3% of the total volume of vermiculite, which is 1.08L. The particle size of the water-retaining agent is A: 1.0mm and B: 0.25mm. Therefore, the volume of water retaining agent with particle size A is 0.81L, and the volume of water retaining agent with pa...

Embodiment 3

[0064] Pepper: 72-hole plug, the volume of dry water-retaining agent is 0.4% of the volume of vermiculite, the particle size ratio of water-retaining agent A and B is 3:1, and the volume of nutrient solution is 40 times the volume of water-retaining agent.

[0065] In this example, the various steps of the pepper plug seedling raising process were tested successively, and the summary is as follows:

[0066] 1. Preparation of seedling substrate

[0067] (1) Choose vermiculite with a particle size of 1~3mm as the base material;

[0068] (2) Choose 50 plugs with 72 holes, each plug needs about 3.5L of vermiculite, and 50 plugs need 175L of vermiculite;

[0069] (3) Calculate the amount of dry water-retaining agent (the source is the same as in Example 1) based on 0.4% of the total volume of vermiculite, which is 0.7L. The particle size of the water-retaining agent is A: 1.2mm and B: 0.2mm, and the volume ratio is 3:1. Therefore, the volume of water retaining agent with particle size A is ...

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Abstract

The invention discloses a water-saving and fertilizer-holding seedling culture substrate, which is prepared by compounding vermiculite and water retention agents in certain proportion, wherein the vermiculite serves as a base material; and the water retention agents have different particle sizes and fully absorb high-concentration fertilizers. The invention also relates to a method for preparing the substrate and the method for performing vegetable plug seedling culture by using the substrate. The seedling culture substrate and the method for performing the vegetable plug seedling culture have the advantages that: seedlings are watered only with clear water in a seedling culture period, so seedling culture procedures are greatly simplified, labor efficiency can be improved by 0.5-1 time, the seedlings are grown fast and have developed root systems, the seedling culture period is shortened by 5 to 7 days, fresh water and turf resources can be saved and the cost is reduced by 20 to 30 percent.

Description

Technical field [0001] The invention relates to a seedling raising substrate and its application in vegetable plug seedling raising, and belongs to the technical field of soilless culture. Background technique [0002] With the rapid development of facility horticulture, soilless culture technology and factory plug seedling technology are being widely promoted and applied, and have become a core technology to promote the development of my country’s vegetable industry, which has played a huge role in promoting the increase in production and efficiency of facility agriculture. effect. The selection of seedling substrate and supporting cultivation technology is an important part of the factory plug seedling technology. In the soilless culture technology disclosed in the prior art, the plug seedling substrate mostly uses a composite substrate with peat as the main raw material. However, because peat is a non-renewable resource, a large amount of mining will cause damage to the ecolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00A01G1/00
Inventor 高洪波高志奎宫彬彬章铁军吴晓蕾王梅
Owner HEBEI AGRICULTURAL UNIV.
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