春小麦和红豆草抑盐效应的比较研究  

Effect of Triticum aestivum and Onobrychis viciaefolia on salt restraint

作　　者：陈源娥 李昂[2] 

机构地区：[1]甘肃省种子管理总站,甘肃兰州730020 [2]甘肃农业大学

出　　处：《草业科学》2006年第5期53-56,共4页Pratacultural Science

摘　　要：通过田间试验，测定了种植红豆草Onobrychls viciaefolia和春小麦TriticumA aestivum对土壤可溶性盐分的影响。结果表明：绿色覆盖对0～20cm土层具有明显的抑盐效应，且随着地上生物量的增加，土壤表层的可溶性盐分下降幅度达24．4％；在生育期内，一年生红豆草使0～80cm土层脱盐率达23.4％，而小麦使0～80cm土屉积盐率达14．4％；单作小麦收获后，土壤表层盐分上升很快，其上升速度较裸地快。The effect of Onobrychis viciaefolia and spring wheat（Triticum aestivum ） on the content of soluble salt was studied by field experiment . The results showed that in 0-20 cm soil layer , green cover had obvious effect of restraining salt ,and with the increase of aboveground biomass, the salt content within 20 cm was reduced by 24.4% . During the growth period, the salt content within 80 cm decreased by 23.4% through sowing O. viciaefolia, but it was increased by 14.4% through sowing T. aestivum. After spring wheat was harvested, the increasing-speed of soil salt content in wheat land was higher than that in uncovered land.

关 键 词：红豆草 春小麦 可溶性盐分 抑盐效应 

分 类 号：S156.4[农业科学—土壤学]