Vegetable seedling raising substrate and manufacturing method thereof

Abstract

The invention discloses a vegetable seedling raising substrate and a manufacturing method thereof, belonging to the technical field of soilless culture. The substrate comprises the following components in parts by volume: 15-30 parts of coconut shell flour base material, 15-30 parts of alcohol marsh slag fermentation material, 15-25 parts of carbonized rice hull, 0.5-2 parts of marsh sludge, 5-10 parts of perlite and 15-25 parts of vermiculite. The water content of the substrate is 35-50%, the total porosity is 65-95%, the organic content is at least 20%, the total nutrient content is 3-5%, the particle size is 0.1-4.9mm, the volume weight is 0.2-0.8 g/cm<3>, the gas-water ratio is 1:(2-4), the EC value is at most 2.5 mS/cm, and the pH value is 5.8-7.5. The organic waste used as the raw material is subjected to high temperature fermentation to produce the vegetable seedling raising substrate, thereby changing wastes into valuable substances and changing harm into benefits. The vegetable seedling raising substrate has the advantages of low cost, light weight and complete nutrients, is very suitable for growth and development of vegetable seedlings, and is a favorable hole-tray seedling raising substrate for vegetable soilless culture plants.

Description

technical field [0001] The invention relates to a nutrient substrate for soilless cultivation of vegetables and a preparation method thereof, in particular to a vegetable seedling-raising substrate and a preparation method thereof, and belongs to the technical field of soilless cultivation of vegetables. Background technique [0002] Soilless cultivation refers to the method of cultivating with substrate instead of natural soil. It is mainly used in vegetables or flowers. It is a high-yield and high-quality advanced technology that saves water, fertilizer and labor. [0003] Substrate cultivation is a method with the largest promotion area in soilless cultivation. It fixes the roots of crops in organic or inorganic substrates, and supplies the nutrients or water needed by crops through drip irrigation or trickle irrigation. At present, most countries in the world use gravel, sand, mud (grass) charcoal, vermiculite, perlite, rock wool, sawdust, etc. as fixed substrates. Wit...

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Problems solved by technology

However, peat is produced in the Northeast, resources are scarce, and it cannot be regenerated. Enterprises in Jiangsu use peat at high cost; reed powder, traditional Chinese medicine residue, mushroom residue, etc. are large in size and need to be crushed; Difficulties and other deficiencies, it is difficult to meet the needs of industrial seedlings

Li Pingping of Jiangsu University and others used vinegar grains to produce plant seedlings and cultivation substrates. Because it was proposed earlier, some production processes are not too mature, and it is mainly used for cultivation, not strictly a special seedling substrate.

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