干旱地区农业研究2011，Vol.29Issue(6)：1-6,6.
不同氮磷营养条件下苗期水分亏缺对玉米生长及水分利用的影响
Effect of water deficit during seedling stage on growth and water use of maize on the condition of different N and P nutrition
摘要
Abstract
An experiment in pots was carried out to study the effect of water deficit during the seedling stage on growth, dry matter accumulation and water use efficiency of maize named Xingmin - 338 on the condition of different N and P by providing three nitrogen phosphor levels and four water deficit treatments. The results showed that in the same application of N and P nutrition, slight water deficit during the seedling stage had marked compensation effect on dry matter accumulation and improved water use efficiency of maize. Compared with CK, dry matter accumulation of maize was increased "by 21 .84% , 22.22% and 19.50% respectively 21 days after rewatering and with the three treatments of N0P0, N1P1 and N2P2- Medium water deficit and serious water deficit during the seedling stage reduced dry matter accumulation . In the same water deficit, low N and P fertilizer application was beneficial for maize growth and development. Therefore, the pilot study found that slight water deficit plus low N and P levels during the seedling stage was an ideal water and fertilizer coupling.关键词
玉米/苗期/轻度亏水/氮/磷/干物质累积/水分利用效率Key words
maize/ seedling stage/ nitrogen/ phosphor/ dry matter accumulation/ water use efficiency分类
农业科技引用本文复制引用
岳文俊,张富仓,李志军,索岩松..不同氮磷营养条件下苗期水分亏缺对玉米生长及水分利用的影响[J].干旱地区农业研究,2011,29(6):1-6,6.基金项目
国家自然科学基金项目(50879073) （50879073）
