一、沼肥作肥料 1.作底肥。由于沼渣含有丰富的有机质、腐植酸类物质,因而应用沼渣作底肥不仅能使作物增产,长期使用,还能改变土壤的理化性状,使土壤疏松,容重下降,团粒结构改善。直接施用。用作旱地作物时,先将土壤挖松一次,将沼渣以每亩2000公斤,均匀撒播在土壤中,翻耕,耙平,使沼渣埋于土表下10厘米, First, the manure for fertilizer 1. For the base fertilizer. Because biogas residue is rich in organic matter and humic substances, biogas residue can not only increase crop yield and long-term use, but also change the physical and chemical properties of soil so that the soil is loose and the bulk density is reduced and the aggregate structure is improved. Direct application. When used as a dryland crop, the soil is dug once and the biogas residue is evenly distributed in the soil at a rate of 2000 kg per mu. After tilling and raking, the biogas residue is buried 10 cm below the soil surface,