Soil requirements and soil formula for soil yuan breeding

Tuyuan can not do without soil all his life. Raising soil is not only a place for Tuyuan to live and breed, but also a safe haven for it to escape unfavorable factors. The quality and material composition of feeding soil are directly related to its smooth growth and development.

The soil is usually taken in winter, when there are few pathogenic microorganisms, pests and eggs in the soil, so it is easy to purify.

Taking soil requires that the soil should be loose and ventilated. The advantages of loose soil are as follows: one is sufficient oxygen, and the other is convenient for soil element drilling, which is beneficial to its growth and development. The acidity and alkalinity of the soil should be neutral or slightly alkaline, and the particle size is suitable, which is convenient to screen the egg sheath in the later stage of soil growth.

Sterilization: first mix the sterilized medicine into a solution, then mix it into the breeding soil, accumulate and use it after a certain period of time. Raising soil for sterilization can be mixed with 0.1%-0.2% potassium permanganate solution, 0.1% bromogeramine solution, 0.1%-0.2% copper sulfate solution and so on. Disinfestation: 100 grams of 80% dichlorvos EC per cubic meter of breeding soil, diluted 100 times, then evenly sprayed on the breeding soil, spray and turn over, so that it can be evenly distributed. Then cover with plastic film, press all around to prevent air leakage, accumulate for about 1 week and open the gas for 10 to 15 days before use. The higher the ambient temperature, the better the insecticidal effect. Pay attention to spray liquid to stand in the limelight, downwind livestock should also rush to other places, in case of poisoning.

The filler can add lime powder to the soil, one is to supplement the calcium consumed by the soil element during spawning and molting, to promote its rapid growth, and the other is to play the role of disinfection and sterilization.

Formula 1 of feeding soil is 40% rice chaff ash and 60% pure soil (with low impurity content). Second, pure land 90%, plant ash 10%. You can also use Pure Land directly. Both of the above formulations can prevent the growth of germs.