The biogas residues cannot be used immediately after the biogas residue is discharged. The reduction of the biogas residue is strong. If the biogas residue is used immediately after being discharged, it will compete with the crops for oxygen in the soil and affect the seed germination and root development, resulting in yellowing and wilting of the crop leaves. Therefore, it should generally be stored in the septic tank for 5-7 days after being discharged from the pond. If it is mixed with phosphate fertilizer at a ratio of 10:1 for 5-7 days, the effect will be better. Biogas slurry can't be directly applied with biogas slurry for fertilizer application, especially when the seedlings are topped up, they must be mixed with water first, otherwise they will burn the crops. Biogas residue can not be applied to the topsoil in the dry land crops. It is better to use a hole or trench, then cover the soil, apply it to the paddy fields and spread the plow to the bottom. Can not be over-used generally less than the average amount of pig manure, if a large number of blind applications will lead to crop lengthened production. Fruit Powder,Guava Powder,Blackcurrant Powder,Blueberry Powder Xi'an Healthway Biotech Co.,Ltd , https://www.xahealthway.com