覆盖秸秆和种植牧草对盐碱化草地的影响  

The Influence of Using Straw Mulch and Forage Grass on the Alkali Soil

作　　者：李景欣[1] 杨帆[1] 李洪影[1] 崔国文[1] 阎南南[1] 

机构地区：[1]东北农业大学动物科技学院,黑龙江哈尔滨150030

出　　处：《作物杂志》2013年第3期83-86,共4页Crops

基　　金：农业部跨越计划项目(2009跨29);公益性行业科研专项经费(200903060);东北农业大学科学研究基金

摘　　要：为了分析秸秆覆盖和种植耐盐碱牧草对盐碱土壤的影响,本研究通过田间裂区试验,比较了在采取不同的改良措施下,盐碱土壤养分含量及微生物数量的变化情况。结果表明:秸秆覆盖和种植耐盐碱牧草可改变土壤养分及微生物含量,但并不是所有覆盖量以及所有耐盐碱牧草均适宜,研究发现,当覆盖量为2kg/m2时,种植一年生牧草东饲一号稗草对土壤的改良效果较好。The influence of straw mulching and planting forage grass on alkali soil was studied by split plot design. This experiment analyzed the changes of soil nutrient and soil microbial biomass under the two soil improvement methods. The results revealed that the measures of straw mulching and planting forage grass were good for soil im- provement such as soil nutrient contents and microbial biomass to certain extent but not on all foraging grass. Among all the methods, the effect of planting Echinochloa crusgalli with the mulching quantity of 2 kilograms for every square meter had an ideal result.

关 键 词：秸秆覆盖 盐碱土壤 牧草 

分 类 号：S54[农业科学—作物学]