ISWC OpenIR  > 水保所知识产出(1956---)
施氮对黄土高原半湿润区冬小麦产量和水分利用效率的影响
朱云鹏1,2; 王霖1,2; 党亚爱2; 王国栋2
2019
Source Publication麦类作物学报
Volume39Issue:8Pages:988-993
Abstract

为探讨施氮对黄土高原半湿润地区冬小麦产量和水分利用的影响,通过田间长期定位试验,设
置 0kg · hm -2 ( N0 )、 100kg · hm -2 ( N100 )、 200kg · hm -2 ( N200 )、 300kg · hm -2 ( N300 )和 400kg · hm -2
( N400 ) 5个施氮水平,比较分析了不同处理间冬小麦不同生育时期0~200cm 土层土壤剖面水分动态变化及
产量和水分利用效率的差异。结果表明,与未施氮( N0 )处理相比较,施氮处理的冬小麦籽粒产量、籽粒产量
水分利用效率、干物质量和干物质量水分利用效率均显著增加,而各生育时期土壤水分含量降低。两年的冬
小麦耗水量和籽粒产量均表现为 N100 、 N200>N0>N300 、 N400 ;籽粒产量水分利用效率和干物质量水分利
用效率均呈增加趋势,但 N200与 N300及 N300与 N400处理间差异不显著。综合来看,在本试验条件下,施
氮200kg
· hm -2 时冬小麦既能高产,也可高效利用土壤水分。

Other Abstract

Nitrogen fertilizer has been broadly applied in agriculture practice for a long term.The
effects of nitrogen fertilizer on winter wheat yield and water use efficiency in the Loess Plateau of Chi -
na were studied in two years.The nitrogen fertilizer application were set at four different levels , e.
g.
100kg · hm
-2 (
N100 ), 200kg · hm -2 ( N200 ), 300kg · hm -2 ( N300 ), and 400kg · hm -2 ( N400 ), in
the long - term field experiments
, and 0kg · hm -2 ( N0 ) was set as control.Soil water content and wa

ter use efficiency in 0~200cm soil profile at different growth stages of winter wheat were analyzed.
Results showed that grain yield ,
dry
matter weight and water use efficiency ( per unit grain yield and
dry
matter weight ) of winter wheat under nitrogen application treatments ( N100 , N200 , N300 , and
N400 ) were significantly larger than those of control ( N0 ), while soil water content under all nitrogen
treatments were comparatively less during each growth stage.Water consumption and yield under
N100and N200treatments were consistently larger than those under N0in the two experimental
years , while N300and N400treatments showed less water consumption and lower yield
, compared to
N0.Furthermore , compared to N0 , all nitrogen application treatments showed increased water use efficiency , either in ‘ per unit grain yield'or in

per unit dry matter weight'
, but both of them under
N300treatment had no significant difference with those under N200and N400treatments.In a conclu -
sion , the treatment of N200was found as an optimal nitrogen application scheme in semi - humid area
of the Loess Plateau , regarding its comprehensive performance in yield and water use efficiency.

Keyword氮肥 冬小麦 产量 水分利用效率
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/9877
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室
2.西北农林科技大学理学院
Recommended Citation
GB/T 7714
朱云鹏,王霖,党亚爱,等. 施氮对黄土高原半湿润区冬小麦产量和水分利用效率的影响[J]. 麦类作物学报,2019,39(8):988-993.
APA 朱云鹏,王霖,党亚爱,&王国栋.(2019).施氮对黄土高原半湿润区冬小麦产量和水分利用效率的影响.麦类作物学报,39(8),988-993.
MLA 朱云鹏,et al."施氮对黄土高原半湿润区冬小麦产量和水分利用效率的影响".麦类作物学报 39.8(2019):988-993.
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