李磐,吉恒莹,马兴旺,杨涛.新疆干旱区长绒棉水肥耦合产量效应研究[J].干旱地区农业研究,2010,28(6):103~107
新疆干旱区长绒棉水肥耦合产量效应研究
Effect of nitrogen, phosphorus and water coupling on cotton yield in the arid region of Xinjiang
  
DOI：10.7606/j.issn.1000-7601.2010.06.19
中文关键词:  棉花  水肥耦合  数学模型  产量效应
英文关键词:cotton  water and fertilizer coupling  mathematics model  yield effects
基金项目:国家“863”课题(2002AA6Z3201-6502)
作者单位
李磐 新疆农业科学院土壤肥料与农艺节水研究所，新疆 乌鲁木齐 830000 
吉恒莹 新疆师范大学生命科学与化学学院，新疆 乌鲁木齐 830054 
马兴旺 新疆农业科学院土壤肥料与农艺节水研究所，新疆 乌鲁木齐 830000 
杨涛 新疆农业科学院土壤肥料与农艺节水研究所，新疆 乌鲁木齐 830000 
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中文摘要:
      为了探讨南疆棉花水肥耦合作用,试验实行3因素5水平311-B拟饱和最优回归设计,通过对灌水量(W)、施氮量(N)、施磷量(P)与棉花产量关系的分析,拟合出回归模型:Y=4685.48+78.95X1+61.66X2-14.58X3-84.51X12-101.94X22-120.75X32-79.56X1X2-38.73X1X3-14.61X2X3(Y为产量,X1为灌水量,X2为施氮量,X3为施磷量)。结果表明:在试验条件下各因素对产量影响的顺序为W(X1)>N(X2)>P(X3),说明在本试验条件下,灌水量的作用居于首位,其次是氮肥和磷肥;各因素交互作用效应顺序为WN>WP>NP;由方程拟合的组合方案是灌溉量(Z1)为5 765.24 m3/hm2,施氮量(Z2)为281.76 kg/hm2,施磷量(Z3)为104.73 kg/hm2时,棉花籽棉最高产量(Y)达到4 707.94 kg/hm2。
英文摘要:
      Artificial water control experiments in cotton field were conducted in arid region of Xingjiang to study the effect of water and fertilizer coupling on cotton yield with 3 factors and 5 levels of 311-B quasi-plump .The order of vari-ous factors impacting on the production was water(X1)>N(X2)>P(X3). The effect of irrigation quantity ranked first，followed by nitrogen and phosphorus in the trials; the order of interaction effect of various factors was WN>WP>NP. It showed that nitrogen had leading function in crop growth under different irrigation conditions. Interaction efect of various factors promoted yield, and the interaction effect between nutrient factors as well as water was higher than N and P. The results showed that the amount for highest yield 4 707.94 kg/ hm2 was nitrogen 281.76 kg/hm2, phosphorus 104. 73 kg/ hm2and water 5 765. 24 m3/hm2
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