Seedling raising substrate for cultivating salt resistant plant seedlings, and preparation method and application of seedling raising substrate for cultivating salt resistant plant seedlings

Abstract

The invention discloses a seedling raising substrate for cultivating salt resistant plant seedlings, and a preparation method and application of the seedling raising substrate for cultivating salt resistant plant seedlings. The seedling raising substrate for cultivating salt resistant plant seedlings is prepared from mushroom residues, livestock and poultry excrement and urine, vinegar residues, gypsum residues, vermiculite, functional microorganisms and plant nutrient substances. The preparation method comprises the steps of preparing thoroughly decomposed mushroom residues through stacking fermentation of the mushroom residues, the livestock and poultry excrement and urine and the vinegar residues, preparing plant nutrition element enveloping bodies through entrapping potassium nitrate and magnesium sulphate with urea-formaldehyde resins, preparing microorganism enveloping bodies through entrapping functional microorganisms of trichoderma harzinum T83 and bacillus amyloliquefaciens IAE with polyglutamic acid, and preparing the substrate through solid fermentation and compounding of raw materials. The prepared substrate has stable high-cation environment, resistance of seedlings to hyperosmosis is continuously trained, and seedling raising substrate products suitable for heavy-salt soil regions are developed. The salinity of transplanted soil, which can be borne by plant seedlings cultivated by the products, is increased by 50% to 200%.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a seedling-raising substrate for cultivating salt-resistant plant seedlings, a preparation method and application thereof. Background technique [0002] With the acceleration of urbanization and industrialization in my country, the area of ​​effective cultivated land and high-quality land is gradually decreasing, and residents' demand for sea-friendly space is increasing. A large amount of land has been formed in the eastern coastal areas of my country in recent decades, but this type of land has a high salt content, which severely restricts agricultural use and the construction of ecological vegetation in coastal areas. Planting salt-tolerant plants such as Aquana, Suaeda salsa, Spartina spartina, and Tamarix in coastal areas with heavy saline soil, and agricultural plants such as rice, wheat, corn, sorghum, quinoa, and oil sunflower are very important for local ecologic...

AI Technical Summary

Problems solved by technology

[0003] Traditional seedling substrates have a good effect on plant emergence and growth, but they are not conducive to transplanting them into poor soils, especially seashore heavy saline soils, which have high salt content and can easily cause dehydration and death of plants

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