不同品种滴灌棉花水氮效应差异性比较  

Comparion of the Effect of Water and Nitrogen on Different Cotton Varieties under Drip Irrigation

作　　者：王海江[1] 崔静[1] 侯振安[1] 时利尚[1] 闫靖华[1] 吕新[1] 

机构地区：[1]新疆石河子大学农学院资源与环境系,新疆石河子832000

出　　处：《水土保持研究》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)

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.

关 键 词：滴灌 棉花品种 水氮 

分 类 号：S562[农业科学—作物学] S275.6