机构地区: 河南科技大学农学院
出 处: 《河南科技大学学报(农学版)》 2003年第1期1-4,共4页
摘 要: 试验结果表明:优化水肥及秸秆还田优化水肥条件下冬小麦总根量显著高于传统水肥,根长密度和根重密度随上层深度递减速度慢,氮肥当季利用率显著提高,但各处理条件下水分利用效率差异不明显。 The results of analysis are as the following. The irrigation - optimized fertilization and irrigation - optimized fertilization with crop residues significantly make total root amount of winter wheat more than traditional irrigation fertilization. The root length density and root weight density decrease slowly according to soil depth, and the efficiency of nitrogen fertilization using increase significandy. The efficiency of water using in each treatment is insig-nificandy different.
关 键 词: 水肥 处理模式 冬小麦 根系 生长发育 氮肥 利用效率 秸秆还田
领 域: [农业科学]