保护性耕作对土壤耕作层水肥保持能力及玉米产量的影响分析  

Effect of Sheltered Farming on Corn Yield and Retention Capacity of Water-fertilizer in Plough Horizon

作　　者：李艳[1] 

机构地区：[1]沈阳市东陵区沈抚污水灌区管理所,沈阳110006

出　　处：《农业科技与装备》2008年第2期22-24,共3页Agricultural Science & Technology and Equipment

摘　　要：保护性耕作是农业生产的一项重要技术措施。本文以玉米(东单60)为材料进行秸秆覆盖试验,探讨了保护性耕作对土壤耕作层水、肥保持能力及玉米产量的影响。采用SPSS软件对实测数据进行分析,结果表明:保护性耕作水、肥保持能力均优于传统耕作,免耕覆盖对耕层土壤含水率影响显著,而浅耕覆盖对土壤耕层养分和作物产量影响显著。Sheltered fanning has become the most effective measures for agricultural production. This article carries on an experimental of corn straw mulch in corn fields, and explores the effect of protective cultivation on retention capacity of water-fertilizer and corn yield. Then, the experiment data was analysis by SPSS, the results show that shehered farming was better than traditional fanning on retention capacity of water-fertilizer, zero-tillage covering has significant effect on moisture content of plough layer, and shallow tillage mulch has prominent effect on soil nutrient and crop yield.

关 键 词：保护性耕作 土壤含水量 土壤养分 玉米 产量 

分 类 号：S513[农业科学—作物学] S154.1