干旱地区农业研究2011，Vol.29Issue(2)：95-100,6.
免耕对粮食作物产量的影响
No-tillage effects on crop yield
摘要
Abstract
Based on field investigation and fixed experimental observation from 2006 ～ 2007 in Beijing suburbs,comparison between the no-tillage and conventional tillage under crop growing and yield was made to analyse the problems during the implementation of no-tillage extension. The results reveal that compared with those in conventional tillage, the emergence and maturity of crops in no-tillage with mulching are later; and the number of plants can be 32％ lower than conventional tillage during emergence and early seedling pulling of no-tillage winter wheat; Compared with conventional tillage, biomass of no-tillage winter wheat can be about 3％ lower, but the underground root is measured 15％ higher over the same period. No-tillage winter wheat can increase production by 2.2％ in dry-spring years, but in rainy-spring years, production drops by 18.37％, and at most by 46.4％; No-tillage increases corm production by 2％ ～ 18％. Prorooting the implementation of no-tillage also needs to strengthen scientific field management and increase govemment suppert and advocacy efforts to ensure the stability of no-tillage grain production and sustained implementation.关键词
免耕/传统翻耕/作物产量/推广实施Key words
no tillage/ conventional tillage/ crop yield/ implementation of extension分类
农业科技引用本文复制引用
彭文英,彭美丽,吴晓展..免耕对粮食作物产量的影响[J].干旱地区农业研究,2011,29(2):95-100,6.基金项目
国家自然科学基金"北京及周边地区免耕条件土壤水分动态及利用效率(40571092)" （40571092）
北京地区普通高等学校首都经济学科群建设项目 （）
北京市教委科技创新平台-首都圈生态文明建设研究项目 （）
