包膜沼气发酵残留物颗粒有机肥的制备及应用研究

Study on Preparation and Application of Biogas Residue Coated Organic Fertilizer

[目的]为沼气发酵残留物制备包膜颗粒有机肥的应用前景提供科学依据。[方法]以沼气发酵残留物为原料,辅以无机肥氮、磷、钾添加剂,以浓度10%琼脂和浓度10%PVA为包膜材料,制备包膜颗粒有机肥,并在温室中开展应用研究。[结果]该自制颗粒有机肥对小白菜的产量具有明显的促进作用,其中琼脂包膜颗粒肥可增产371.36%,PVA包膜颗粒肥可增产245.50%,不包膜颗粒肥可增产312.07%。[结论]该研究可为沼气发酵残留物制备包膜颗粒有机肥的应用提供科学依据。

[Objective]The research aimed to provide the scientific basis for the application aspect of the organic fertilizer with biogas residue.[Method] A kind of coated organic fertilizer was prepared,with biogas residue as the raw material,supplemented by the inorganic N,P,K fertilizer additives,and with 10% concentration of AGAR and 10% concentration of PVA as the coated materials.Then an application research in the greenhouse was carried out.[Result] This kind of homemade coated organic fertilizer could improve the yield of the pakchoi obviously.The yield of coated organic fertilizer with AGAR was increased by 371.36%.The yield of coated organic fertilizer with PVA was increased by 245.50%.The yield of not coated organic fertilizer was increased by 312.07%.[Conclusion] This study could provide scientific basis for preparing and application of biogas residue coated organic fertilizer.