title: [Effects of nitrogen application and ridge film furrow planting on water use of winter wheat in dry land of south Shanxi].
abstract: A 2-year (2008-2010) field experiment was conducted to study the effects of basal dressing nitrogen, topdressing nitrogen, and ridge film furrow planting on the 0-2 m soil moisture status and the grain yield and water use efficiency of winter wheat in rain-fed area of South Shanxi Province. In all treatments, the soil moisture status during winter wheat growth period had the same change trend, being increased steadily from pre-sowing to revival stage and decreased sharply from revival stage to heading stage, and then increased gradually till maturity stage. From revival stage to heading stage, the soil water consumption was the most. Increasing nitrogen basal application rate or topdressing nitrogen increased the soil water consumption, widened the soil moisture active layer, and deepened the relatively stable layer. Topdressing nitrogen increased grain yield significantly; ridge film furrow planting decreased soil water consumption obviously. The water use efficiency under ridge film furrow planting was 23.4% and 39.1% higher than that under conventional planting system in 2009 and 2010 (P < 0.01). The grain yield under ridge film furrow planting plus top-dressing nitrogen was 3643 kg x hm(-2), which was significantly higher than that under single ridge film furrow planting or topdressing nitrogen, displaying a preferable water-fertilizer coupling effect.
authors.affiliation: College of Resources and Environment, Shanxi Agricultural University, Taigu 030801, Shanxi, China. xieyinghe@163.com
authors.forename: Ying-he
authors.initials: YH
authors.lastname: Xie
authors.forename: Ting-liang
authors.initials: TL
authors.lastname: Li
authors.forename: Jian-ping
authors.initials: JP
authors.lastname: Hong
authors.forename: Li-ping
authors.initials: LP
authors.lastname: Liu
authors.forename: Jiao
authors.initials: J
authors.lastname: Pang
authors.forename: Qian
authors.initials: Q
authors.lastname: Feng
authors.forename: Shu-yuan
authors.initials: SY
authors.lastname: Deng
authors.forename: Jie
authors.initials: J
authors.lastname: Shan
mesh_terms: D000383:Agriculture / Q000379:methods*; D018533:Biomass; D002681:China; D005308:Fertilizers; D009584:Nitrogen / Q000494:pharmacology*; D014908:Triticum / Q000254:growth & development* / Q000378:metabolism*; D014867:Water / Q000378:metabolism*; D014881:Water Supply
chemical_list: D005308:Fertilizers; D014867:Water; D009584:Nitrogen