大豆重茬减产原因分析  

作　　者：申小杰[1] 

机构地区：[1]黑龙江省孙吴县农业技术推广中心,164200

出　　处：《现代农业研究》2016年第5期53-53,共1页Modern Agriculture Research

摘　　要：和许多瓜类作物重茬种植造成减产相似,大豆在种植过程中也应尽量避免重茬种植.一方面,重茬种植会因大豆长期选择性吸收土壤养分,造成土壤养分结构失调;另一方面还会改变土壤的理化性质,影响大豆的正常生长发育,同时导致大豆病虫害问题的加重.避免大豆减产的最有效手段时建立合理的轮作耕作制度,当确实需要进行重茬种植时,要通过合理施肥施药,品种筛选等手段提高大豆的抗逆性,减少重茬带来的减产危害.The process of planting soybean is very similar to many melon crops, should be avoided in the process of planting soybean continuous cropping. On the one hand, soybean continuous cropping plant selects absorption of soil for long-term and makes soil nutrientstructure disorder. On the other hand, it will also change the physical and chemical properties of soil, affecting the normal growth and development of soybean, increase of soybean pest problems.

关 键 词：大豆 重茬减产 原因 

分 类 号：S431[农业科学—农业昆虫与害虫防治]