Soilless culture substrate and preparation method thereof

Abstract

The invention discloses soilless cultivation substrate and a preparation method thereof, and relates to the field of cultivation substrate. The soilless cultivation substrate comprises the following raw materials in parts by weight: 30 to 40 parts of peat, 10 to 15 parts of coated expanded perlite, 6 to 12 parts of montmorillonite powder, 10 to 15 parts of plant ash, 10 to 15 parts of egg shell powder, 4 to 9 parts of waste asbestos powder, 10 to 15 parts of straw, 4 to 9 parts of bean dregs, 4 to 9 parts of potato residue, 3 to 7 parts of rice hull powder, 2 to 5 parts of cyclodextrin, 1 to 3parts of carboxymethyl cellulose sodium, 3 to 7 parts of calcium lime, and 0.2 to 0.8 part of microelements. The soilless cultivation substrate is rich in nutrient substance, and excellent in water absorption and air permeability, has good water retention, does not produce hazardous substance during preparation, is green and environmentally friendly, takes domestic waste as a raw material, is wide in source, low in production cost, and simple in preparation method.

Description

technical field [0001] The invention relates to the field of cultivation substrates, in particular to a soilless cultivation substrate and a preparation method thereof. Background technique [0002] Soilless cultivation is a new technology of crop cultivation developed in recent decades. Crops are not cultivated in soil, but in some kind of cultivation medium, and crops are cultivated with nutrient solution. As long as there are certain cultivation equipment and certain management measures, crops can grow normally and achieve high yields. Because it does not use natural soil, but uses some kind of nutrient solution or substrate, it is called soilless cultivation. [0003] Soilless culture is characterized by artificially created crop root growth environment instead of soil environment, it can not only meet the needs of crops for nutrients, water, air and other conditions, but also control and adjust these conditions to promote better crop growth , and obtain better vegeta...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN10411915A discloses a method for producing biological substrates for wheat, which includes mixing wheat straw, corn straw and pumice, adding water to the crushed wheat straw and corn straw, adding water to peat, fermented bedding material, and adding a small amount of maturing substrate. The fermentation substrate is made, the mixed fermentation substrate is stacked and decomposed, and it is thrown over regularly. After the composting is completed, earthworms are introduced into the compost, matured, and dried. Disadvantages of a single ingredient

[0005] Chinese patent CN102648696A discloses a method for producing vegetable cultivation substrates and seedling raising substrates by using Lycium barbarum paper strips. The production steps are as follows: crush Lycium barbarum branches, sprinkle them with water, add organic fertilizer, urea and enzyme preparations, mix well, and heat them at an ambient temperature of 10 Stacking fermentation at -40 degrees Celsius, when the temperature in the center of the pile is higher than 75 degrees Celsius, turn the pile until the temperature in the pile drops to close to the ambient temperature, complete the fermentation, and then mix it with perlite, organic vermiculite and perlite. Yes, it has the advantages of water absorption, breathability, and rich nutrition, but the raw material Lycium barbarum branches of the present invention has regional restrictions, and the source of raw materials is limited

Images