摘要
研究选取当地两个主栽棉花品种,通过不同水、氮用量研究棉花品种间在产量、氮肥吸收利用和水分利用效率的差异性。结果表明:标杂A1品种总体表现要优于新路早33号,干物质积累和籽棉产量上在低水条件下(3 600m3/hm2)品种间差异不显著,中、高水处理下(4 500m3/hm2,5 400m3/hm2)品种间差异均达到显著水平;两个施氮水平下(240kg/hm2,320kg/hm2)品种间总吸氮量和氮肥利用效率差异均显著;低水处理下两个施氮水平品种间水分利用效率差异不显著,中水处理下品种间水分利用效率差异显著,高水低氮处理水分利用效率在两个品种间差异不显著,但在高水高氮施用量条件下差异表现显著。
Two main local cotton cultivars were selected,to study yield,nitrogen use and water use efficiency difference of cotton varieties by different water and nitrogen.The results showed that： the hybrid A1 was better than Xinluzao 33 in overall performance,dry matter accumulation and cotton yield were no significant difference at the low water conditions（3 600 m3/hm^2）,middle and high water treatment（4 500 m3/hm^2,5 400 m3/hm^2） were significantly different between varieties;the differences of nitrogen uptake and nitrogen use efficiency were significant in two nitrogen levels（240 kg/hm^2,320 kg/hm^2） between varieties;low water level was not significant,middle water was significant under the two nitrogen,high water and low nitrogen was not significant,high water and high nitrogen was significant in water use efficiency between two cotton varieties.
出处
《水土保持研究》
CSCD
北大核心
2011年第2期152-154,158,共4页
Research of Soil and Water Conservation
基金
国家科技支撑计划"棉花水肥高效利用调控管理技术研究"(2006BAD21B02-2)
石河子大学高层次人才科研启动资金专项(RC-ZX200722
RCZX200728)
关键词
滴灌
棉花品种
水氮
drip irrigation
cotton variety
water and nitrogen
