摘要
为了探索适宜的水分传感器位置、灌水阈值等因素对膜下滴灌棉花叶绿素荧光参数及产量的影响,通过大田试验,设置3种灌水阈值和3种决策传感器,设置二因素三水平完全处理的试验.结果表明:水分传感器位置因素、水分传感器位置与灌水阈值两因素交互作用对棉花叶片叶绿素荧光参数(F_v/F_m,F_v/F_o,q^P,NPQ,Y(Ⅱ),ETR)达到显著性水平(P<0.05),灌水阈值因素对棉花以上指标未达到显著性水平(P>0.05).棉花叶片叶绿素荧光参数、籽棉产量最大值均为水分传感器位置在地表下40 cm、中等灌水阈值的处理T5,NPQ最大值为处理CK.根据试验结果,初步认定处理T5可为新疆自动化控制灌溉提供理论依据.
In order to explore the influence of suitable moistore sensor position, irrigation threshold and other factors on cotton chlorophyll fluorescence parameters and yield under drip irrigation, three ir- rigation thresholds and three decision sensors were set up through field tests, and two-factor thine-level full-treatment tests were set up. The ,results show that the chlorophyll fluorescence parameters （ Fv/F Fv/Fo, qP, NPQ, Y（ ]I ）, ETR） of cotton leaves reach a significant level by the interaction of the po- sition of water sensor, and the interaction between the position of water sensor and the irrigation thre- shold （P 〈 0.05 ）. hTigation threshold factors do not reach the level of significance （P 〉 0.05 ）. The maximum chlorophyll fluorescence parameters of cotton leaves and seed cotton are all T5 treatments whore the moistore sensor is located 40 cm below the surface, and the median irrigation threshold, and the maximum NPQ is CK. According to the test results, it is initially determined that T5 treatment can provide a theoretical basis for the automatic control of irrigation in Xinjiang.
作者
王风姣
王振华
李文昊
WANG Fengjiao;WANG Zhenhua;LI Wenhao(College of Water ＆ Architectural Engineering,Shihezi University,Shihezi,Xinjiang 832000,China;Key Laboratory of Modern Water-saving Irrigation of Xinjiang Production ＆ Construction Group,Shihezi,Xinjiang 832000,China)
出处
《排灌机械工程学报》
EI
CSCD
北大核心
2018年第10期958-962,共5页
Journal of Drainage and Irrigation Machinery Engineering
基金
"十三五"国家重点研发计划项目(2017YFD0201506)
关键词
滴灌棉花
水分传感器
叶绿素荧光参数
产量
灌水阈值
drip irrigation cotton
moisture sensor
chlorophyll fluorescence parameters
yield
irrigation threshold
