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Seedling raising substrate containing arbuscular mycorrhiza as well as preparation method and application thereof

A technology for raising seedling substrates and arbuscular mycorrhizal fungi is applied in the field of raising seedlings containing arbuscular mycorrhizae and their preparation, which can solve the problems of loss of vigor, reducing infection rate, failing to meet the root system of host plants, and the like, so as to promote germination. , the effect of promoting infection, protecting the viability and inoculation potential of strains

Active Publication Date: 2021-02-23
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the spores and other propagules of arbuscular mycorrhizal fungi are too dispersed to reduce their infection rate
On the other hand, it is possible that the arbuscular mycorrhizal strains germinate early in the shelf life and lose their vitality because they cannot meet the root system of the host plant.

Method used

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  • Seedling raising substrate containing arbuscular mycorrhiza as well as preparation method and application thereof
  • Seedling raising substrate containing arbuscular mycorrhiza as well as preparation method and application thereof
  • Seedling raising substrate containing arbuscular mycorrhiza as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Preparation of matrix.

[0036] Straw is purchased from farmers' fields, rice husk, sawdust, biogas residue, mushroom residue and wine residue are purchased from the market, and plant capsules are purchased from the market. The manufacturer is Shanxi Guangsheng Capsule Co., Ltd.

[0037] (1) Mix straw, rice husk, sawdust, biogas residue, mushroom residue, and wine residue evenly, and the mass ratio of straw, rice husk, wood chips, biogas residue, mushroom residue, and wine residue is 40:20:15:15:15 : 15, the matrix raw material was obtained.

[0038] (2) Add fermenting agent to the substrate raw material, the mass ratio of fermenting substrate and fermenting inoculating agent is 500:1, adjust its water content to 60%-65%, compost and ferment for 30 days to obtain compost fermentation product. The fermenting agent is a mixture of saccharomyces, actinomycetes, lactic acid bacteria and bacillus; Bacillus dead valley, the mass ratio of yeast, actinomycetes, lactic acid...

Embodiment 2

[0053] Embodiment 2: arbuscular mycorrhizal seedling raising substrate cultivates robust seedlings

[0054] 1. Test method

[0055] Watermelon and tomato seeds were soaked, sterilized, and germinated. After the seeds germinated and turned white, seeds that were plump and uniformly germinated were sown in a 50-hole tray equipped with a mixed matrix, one seed per hole. After sowing, the plug trays were placed in the glass greenhouse. During the seedling raising period, according to the moist state of the seedling raising substrate and the growth state of the seedlings, the water of the substrate is replenished with tap water from time to time, and the watering amount of each plug is based on the fact that the water does not leak out of the plug.

[0056] 2. Test results

[0057] Table 3 shows that, compared with the substrate not containing arbuscular mycorrhizal bacteria, the arbuscular mycorrhizal seedling raising substrate of the present invention significantly improves the...

Embodiment 3

[0064] Embodiment 3: the advantage after the transplanting of the watermelon seedling that the arbuscular mycorrhizal seedling raising substrate of the present invention cultivates

[0065] 30 days after the transplanting of the watermelon seedlings cultivated by the seedling-raising matrix prepared in embodiment 1, the growth condition was better than the watermelon seedlings cultivated by the common seedling-raising matrix ( Figure 5 A), the watermelon seedlings after 28 days of seedling cultivation were transplanted into the potted plants filled with the above-mentioned mixed matrix, and three watermelon seedlings were transplanted in every pot. According to the wet state of the substrate and the growth state of the watermelon seedlings, supplement the moisture of the substrate with tap water from time to time, and the amount of water for each pot is based on the fact that the water does not leak out of the pot. By measuring the growth index of watermelon one month after t...

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Abstract

The invention relates to a seedling raising substrate containing arbuscular mycorrhiza as well as a preparation method and application thereof. The substrate is composed of an organic substrate, an inorganic substrate and arbuscular mycorrhizal fungus strains. The subtrate is characterized in that the crop seedling raising substrate contains arbuscular mycorrhizal fungi, and the arbuscular mycorrhizal fungi are encapsulated by capsules. Encapsulation of the capsules can isolate direct contact between the arbuscular mycorrhizal fungi and the substrate, so that inhibition of nutrients, especially rapid available phosphorus, in the substrate on arbuscular mycorrhizal strain germination is avoided, the strain activity is maintained, and the shelf life is prolonged. The capsules can controllably dissolve and release the encapsulated arbuscular mycorrhizal fungi to form an arbuscular mycorrhizal structure with crop roots. The dissolution time of the capsules can be regulated and controlled by regulating the water content of the substrate, the capsules are completely dissolved in 8 hours under the condition of 100% water content, and the dissolution time is prolonged along with the reduction of the water content of the substrate.

Description

technical field [0001] The invention belongs to the technical field of crop seedling raising and cultivation, and in particular relates to a seedling raising substrate containing arbuscular mycorrhiza, a preparation method and application thereof. Background technique [0002] With the rapid development of protected horticulture, organic substrate cultivation has become a new soilless cultivation technology in greenhouses in recent years, which has promoted the research on organic substrates. Organic matter resources are extremely rich, organic matter that can be obtained locally such as crop straw, carbonized rice husk, wheat husk, mushroom dregs, peat mud, peat, coconut shell, bark, sawdust, wood shavings, sunflower straw, bagasse, distiller's grains, corn core, tobacco residue, flax, waste cotton, wine residue, pomace sawdust, reed powder, waste paper pulp, traditional Chinese medicine residue, bean dregs, oil meal (rapeseed cake, cottonseed cake, bean cake, etc.), urban ...

Claims

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Application Information

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IPC IPC(8): A01G24/20A01G24/15A01G24/50A01G31/00C05F17/20C05G3/00C12N1/14C12R1/645
CPCA01G22/05A01G24/15A01G24/20A01G24/50C05D9/00C05G3/00C12N1/14C05F17/20C05F5/00C05F5/002C05F5/008C05F9/04C05F11/00C05F11/08Y02W30/40
Inventor 任丽轩王媛王兵爽
Owner NANJING AGRICULTURAL UNIVERSITY
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