河南农业科学Issue(1)：13-18,6.DOI:10.15933/j.cnki.1004-3268.2015.01.004
灌水与氮硫配施对冬小麦产量及水分利用的影响
Effects of Irrigation and Nitrogen-sulfur Combined Application on Grain Yield and Water Use Efficiency in Winter Wheat
摘要
Abstract
A field experiment was carried out to study the effect of irrigation and nitrogen-sulfur combined application on grain yield and water usage efficiency in winter wheat. The treatments were:no irrigation (W0),irrigation at jointing stage(W1),irrigation at both jointing and flowering stages(W2),applying 52. 5 kg/ha nitrogen as CK(N0),applying 180 kg/ha nitrogen(N180),no sulfur as CK(S0),and applying 60 kg/ha sulfur (S60). Results showed that,with the increase of irrigation frequency,the grain yield and water consumption increased significantly. In the condition of water deficit,the application of nitrogen and sulfur could increase the dry matter accumulation and grain yield,and promote the transportation and distribution of dry matter accumulated before the anthesis into the grain. The irrigation and nitrogen-sulfur combined ap-plication could promote the transportation of after-anthesis dry matter into the grain. The combined applica-tion of sulfur and nitrogen had great difference in water utilization with different moisture conditions. The proper decrease of irrigation (W1) could obviously improve the water use efficiency,compared with no irri-gation (W0). Compared with the W2,increasing nitrogen and sulfur application could increase the con-sumption of soil water. Appropriately reducing the irrigation and increasing the sulfur and nitrogen could not only reduce the invalid irrigation consumption,but also improve the utilization efficiency of precipitation and soil storage water,so as to increase both the grain yield and the water utilization efficiency.关键词
冬小麦/灌水/氮硫配施/干物质积累/产量/水分利用Key words
winter wheat/irrigation/nitrogen-sulfur combined application/dry matter accumulation/grain yield/water utilization分类
农业科技引用本文复制引用
刘超,张国钊,朱慧杰,朱云集..灌水与氮硫配施对冬小麦产量及水分利用的影响[J].河南农业科学,2015,(1):13-18,6.基金项目
国家重点基础研究发展计划(973)项目(2009CB118600) （973）
农业部公益性行业科研专项(201203096,201203031-08) （201203096,201203031-08）
