沼气肥在农作物上的应用现状与展望

Present status of biogas fertilizers in crops and the future perspectives

在介绍沼气肥养分组成及作用机理的基础上,概述了沼气肥在主要粮食、果蔬及其他农作物上的应用现状,施用沼气肥可使作物增产4.82%～26.14%,促进作物的正常生长发育、改善农产品品质和提高作物抗逆性。分析了沼气肥生产量低、成分复杂、价值及经济效益尚需明确等主要问题,最后提出加强沼气肥科学研究、加大政策资金扶持和推行大中型沼气工程等发展建议。

In order to promote efficient use of biogas fertilizers,this paper has sumarized the inland application of biogas fertilizers during two decades and explicated the effect of biogas fertilizers on various kinds of crops.On the basis of introducing the nutrients and main action mechanisms of biogas fertilizers,the effects of biogas fertilizers on main grain crops,fruits,vegetables and other crops were overviewed.The biogas fertilizers could increase the crops production by about 4.82-26.14%,promote the growth and development of crops,improve the quality of agriculture products and provide biotic.The problems of low production capacity,complex composition,value and undefined economic benefits in total were analyzed,and the development direction was put forward for strengthening the studies on biogas fertilizers,providing national policy and capital support and carrying out large and medium scale biagas engineering.