Effect of water sensor location and irrigation threshold on physiology and yield of cotton
WANG Fengjiao1,2, WANG Zhenhua1,2, LI Wenhao1,2
1.College of Water ＆ Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China; 2.Key Laboratory of Modern Watersaving Irrigation of Xinjiang Production ＆ Construction Group, Shihezi, Xinjiang 832000, China
Abstract：In order to explore the influence of suitable moisture sensor position, irrigation threshold and other factors on cotton chlorophyll fluorescence parameters and yield under drip irrigation, three irrigation thresholds and three decision sensors were set up through field tests, and two-factor three-level full-treatment tests were set up. The results showed that the chlorophyll fluorescence parameters (Fv／Fm, Fv／F0, qp, NPQ, Y(Ⅱ), ETR) of cotton leaves reached a significant level by the interaction of the position of water sensor, the position of water sensor and the irrigation threshold (P005). The maximum chlorophyll fluorescence parameters of cotton leaves, and seed cotton were all T5 treatments where the moisture sensor was located 40 cm below the surface, and the median irrigation threshold, and the maximum NPQ was 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.
王风姣,, 王振华,, 李文昊,. 水分传感器位置和灌水阈值对棉花生理及产量的影响[J]. 排灌机械工程学报, 2018, 36(10): 958-962.
WANG Fengjiao,, WANG Zhenhua,, LI Wenhao,. Effect of water sensor location and irrigation threshold on physiology and yield of cotton. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(10): 958-962.
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