Nursery nutrient soil requires loose texture, good air permeability, adequate nutrients, and strong water retention and fertilizer retention. Generally, the method for preparing nutritious soil with biological organic fertilizer is as follows: 60% vegetable garden soil, 20% fine sand, and 20% biological organic fertilizer, which have been matured, fertile, not planted with eggplant, and evenly sieved. The amount of chemical fertilizer added to nursery soil can be estimated based on its effective nutrient content. Generally, 100 kg of nursery soil contains 3 kg of superphosphate, 0.2 kg of potassium sulfate, and 0.5 kg of ammonium sulfate. If bed soil is used for seedling raising, generally 2 kg of bio-organic fertilizer is used per square meter of seedbed soil. After sowing, the combined soil is mixed with the soil in the 15 cm layer and sowed.
Hespax Latex Gloves,White Latex Gloves,Blue Rubber Gloves,Latex Rubber Gloves
Jiangsu Hespax Security Co., Ltd , https://www.hespax.com