Effects of winter wheat row spacing on evapotranpsiration, grain yield and water use efficiency

被引：71

作者：

Chen, Suyin ^{[1
]}

Zhang, Xiying ^{[1
]}

Sun, Hongyong ^{[1
]}

Ren, Tusheng ^{[2
]}

Wang, Yanmei ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Key Lab Agr Water Resources, Shijiazhuang 050021, Hebei, Peoples R China

[2] China Agr Univ, Dept Soil & Water Sci, Beijing 100094, Peoples R China

来源：

AGRICULTURAL WATER MANAGEMENT | 2010年 / 97卷 / 08期

关键词：

Winter wheat; Soil evaporation; Row spacing; Grain yield; Water use efficiency; NORTH CHINA PLAIN; MEDITERRANEAN-TYPE ENVIRONMENT; SOIL-TEMPERATURE; SOWING DATE; EVAPORATION; EVAPOTRANSPIRATION; IRRIGATION; GROUNDWATER; SIMULATION; SURFACE;

D O I：

10.1016/j.agwat.2009.09.005

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

A field study was conducted from 2002 to 2007 to investigate the influence of row spacing of winter wheat (Triticum aestivum L.) on soil evaporation (E), evapotranspiration (ET), grain production and water use efficiency (WUE) in the North China Plain. The experiment had four row spacing treatments, 7.5 cm, 15 cm, 22.5 cm, and 30 cm, with plots randomly arranged in four replicates. Soil E was measured by micro-lysimeters in three seasons and ET was calculated from measurements of soil profile water depletion, irrigation, and rainfall. The results showed that E increased with row spacing. Compared with the 30-cm row spacing (average E = 112 mm), the reduction in seasonal E averaged 9 mm, 25 mm, and 26 mm for 22.5 cm, 15 cm, and 7.5 cm row spacings, respectively. Crop transpiration (T) increased as row spacing decreased. The seasonal rainfall interception and seasonal ET were relatively unchanged among the treatments. In three out of five seasons, the four different treatments showed similar grain yield, yield components and WUE. We conclude that for winter wheat production in the North China Plain, narrow row spacing reduced soil evaporation, but had minor improvements on grain production and WUE under irrigated conditions with adequate nutrient levels. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1126 / 1132

页数：7

共 31 条

[1] Effects of straw mulching on soil temperature, evaporation and yield of winter wheat: field experiments on the North China Plain [J].