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Wormcast-based seedling culture substrate and application thereof

A technology of seedling raising substrate and vermicompost, which is applied in the field of seedling raising substrate, can solve the problems of complex formula, high cost, and unfavorable popularization and use, and achieve the effects of reducing dry bulk density, reducing EC value, and improving nutrient and water retention performance

Pending Publication Date: 2022-06-07
ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, some seedling substrates with good seedling raising effects have complex formulas and high costs, which are not conducive to widespread promotion and use.

Method used

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  • Wormcast-based seedling culture substrate and application thereof
  • Wormcast-based seedling culture substrate and application thereof
  • Wormcast-based seedling culture substrate and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Use vermicompost to prepare seedling substrate:

[0020] Taking the commercial substrate as the control and cherry tomatoes, peppers and cowpeas as the test crops, the effect of vermicompost (YF) addition (5-40% (V / V) on the effect of "mushroom residue-peat-perlite (45:45)" was studied. : 10(V / V), J+C+Z)" composite matrix on seedling effect. The results show that the matrix formula "J+C+Z+40%YF" has the best effect on cherry tomatoes, peppers and cowpea seedlings. Good (see Table 1-Table 3), wherein the seedling indexes of cherry tomatoes and cowpeas bred are equivalent to those of seedlings bred in commercial substrates, but the seedling effect on pepper is not as good as that in commercial substrates.

[0021] Table 1 Effects of different formula substrates on cherry tomatoes seedlings (3 weeks seedlings)

[0022]

[0023] Note: If the letters after the numbers in the same column in the table are the same, the difference is not significant by Duncan's new full-ran...

Embodiment 2

[0030] Analysis of physical and chemical properties of different formula matrices:

[0031] Vermicompost has the characteristics of low EC value, low porosity, large dry volume, and high P nutrient content. The addition of vermicompost can improve the physicochemical properties of the "fungus-peat-perlite" composite matrix. In terms of chemical properties, the pH values ​​of all formula matrices were significantly higher than those of commercial matrices, but still within the range of ideal matrices (6-8); the EC values ​​of all formulation matrices were significantly higher than those of commercial matrices, and the amount of vermicompost added If it exceeds 10%, the EC value of the composite matrix of "mycetes residues-peat-perlite" can be adjusted to within the required range of the ideal matrix (3 ), but were significantly higher than those of commercial matrices; the total porosity was within the required range of ideal matrices (70-90%), but significantly smaller than tha...

Embodiment 3

[0038] Seedling matrix EC value, dry bulk density optimization and seedling verification:

[0039] If the EC value of the seedling matrix is ​​too high, the growth of the seedling will be inhibited, and if the dry bulk density is too high, the effect of "lifting the seedling" will be affected. Therefore, the added volume of vermicompost in the composite matrix formula "J+C+Z+40%YF" was reduced to 10%, and the added volume of perlite was increased to 20%, that is, the matrix formula became "scum: peat: pearl rock: vermicompost = 35:35:20:10 (V / V)". After optimization, the EC value of the matrix was reduced from 2250μs / cm to 1030μs / cm, and the bulk density was reduced from 0.595g / cm 3 down to 0.245g / cm 3 , and other physical and chemical properties have no significant difference with the commercial matrix (see Table 6, Table 7). The results of seedling cultivation showed that the number of true leaves, total biomass, above-ground biomass and underground biomass of cherry toma...

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Abstract

The invention discloses a seedling substrate based on wormcast and application of the seedling substrate, the wormcast, mushroom dregs, turf and perlite are used as materials, and the optimal formula of the seedling substrate for cherry tomatoes, peppers and cowpeas is researched and developed as follows: mushroom dregs: turf: perlite: earthworm cast = 35: 35: 20: 10 (V / V) + 2g / L calcium superphosphate, mushroom dregs: turf: perlite: earthworm cast = 35: 35: 20: 10 (V / V), and mushroom dregs: turf: perlite: earthworm cast = 35: 35: 20: 10 (V / V) + 3g / L calcium superphosphate. Under the optimal formula, the seedling strengthening indexes of the cherry tomato seedlings, the pepper seedlings and the cowpea seedlings are respectively improved by 26.0%, 43.9% and 8.5% compared with those of commercial substrates. According to the wormcast-based seedling culture substrate, the EC value and the dry bulk density of the seedling culture substrate can be reduced, and the quick-acting P nutrient and the water retention capacity are improved.

Description

technical field [0001] The invention belongs to the technical field of seedling matrix, in particular to a vermicompost-based seedling matrix and application thereof. Background technique [0002] With the rapid development of specialization, standardization and factory-based matrix plug seedlings, the demand for seedling matrix is ​​also increasing. The seedling matrices on the market are mainly prepared from materials such as peat, perlite and vermiculite, and the proportion of peat is mostly higher than 50%, such as the formula of the classic seedling matrices (peat: vermiculite: perlite = 3:1:1), The proportion of peat moss is 60%. Peat, vermiculite and perlite are all non-renewable resources, which are not inexhaustible. Therefore, the development of suitable environmentally friendly matrix materials is particularly important for the sustainable development of my country's matrix industry. [0003] Vermicompost is a pellet produced by using earthworms to devour livest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/20A01G24/28A01G24/15A01G24/10A01G22/05A01G22/40
CPCA01G24/20A01G24/28A01G24/15A01G24/10A01G22/05A01G22/40Y02P60/21
Inventor 李光义邹雨坤余小兰侯宪文张红燕李勤奋
Owner ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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