摘要
在膜下滴灌条件下,以新陆早45号为试验材料,设5个滴灌定额处理(W 1:600 m^3·hm^-2,W 2:540 m^3·hm^-2;W 3:480 m^3·hm^-2,W 4:420 m^3·hm^-2,W 5:360 m^3·hm^-2),研究棉花农艺性状、成铃模式、产量及纤维品质对滴灌定额的响应。结果表明:随滴灌定额的减少,棉花株高表现为W 2>W 1>W 3>W 4>W 5,果枝台数和蕾花铃总数(8月10日)均以W 1处理最大,分别为9台和13.8个,W 5处理最小,分别为8.75台和10.2个,其中W 1与W 2处理上、中、下部铃数及铃重均无显著差异。棉花籽棉和皮棉产量均以W 1处理最高,达到6431 kg·hm^-2和2520 kg·hm^-2,但与W 2处理间均无显著差异。棉纤维长度、整齐度、断裂比在W 1和W 2处理间无显著差异,W 3、W 4、W 5处理棉纤维长度、整齐度较W 1处理分别低0.4、1.1、1.6 mm和0.5%、0.7%、0.9%。因此,控制滴灌定额在540 m^3·hm^-2,可在不显著降低棉花产量和纤维品质的前提下,提高水资源利用效率。
With drip irrigation under film,5 drip irrigation quota treatments(W 1:600 m^3·hm^-2,W 2:540 m^3·hm^-2;W 3:480 m^3·hm^-2,W 4:420 m^3·hm^-2,W 5:360 m^3·hm^-2)were set up with the test material of XinluZao No.45.The response of cotton agronomic traits,boll mode,yield and fiber quality to drip irrigation quota was studied.The results showed that with the decrease of drip irrigation quota,the plant height of cotton with all treatments was in the order of W 2>W 1>W 3>W 4>W 5.The number of fruit branches and the total number of buds,flowers and bolls(August 10)were the largest under W 1 treatment,which was 9 and 13.8,respectively,and the smallest occurred in W 5 treatment,which was 8.75 and 10.2,respectively.There was no significant difference in the upper,middle and lower parts of W 1 treatment and W 2 treatment.Cottonseed and lint yields were the highest in W 1 treatment,reaching 6431 kg·hm-2 and 2520 kg·hm-2,but there was no significant difference between W 2 and W 1 treatment.There was no significant difference in cotton fiber length,uniformity and specific strength between W 1 and W 2 treatments.The length and uniformity of cotton fiber in W 3,W 4 and W 5 treatments were 0.4 mm,1.1 mm,1.6 mm,and 0.5%,0.7%and 0.9%,respectively,lower than that in W 1 treatment.Therefore,the control of drip irrigation quota at 540 m^3·hm^-2 can improve water use efficiency without significantly reducing the cotton yield and fiber quality.
作者
李楠楠
马卉
王秀媛
李军宏
韩焕勇
罗宏海
LI Nan-nan;MA Hui;WANG Xiu-yuan;LI Jun-hong;HAN Huan-yong;LUO Hong-hai(Key Laboratory of Oasis Eco-agriculture of Xinjiang Production and Construction Corps,College of Agronomy,Shihezi University,Shihezi,Xinjiang 832003,China;Cotton Institute of Xinjiang Academy of Agricultural Sciences,Shihezi,Xinjiang 832000,China)
出处
《干旱地区农业研究》
CSCD
北大核心
2019年第5期16-21,共6页
Agricultural Research in the Arid Areas
基金
国家自然科学基金(31760369)
霍英东教育基金会(151030)
石河子大学大学生研究训练计划项目(201810759002、SRP2017017)
新疆兵团绿洲农业重点实验室开放课题(201601)
关键词
棉花
滴灌定额
株型
产量
纤维品质
cotton
drip irrigation quota
plant type
yield
fiber quality
