Effects of Tillage Practices on Water Consumption, Water Use Efficiency and Grain Yield in Wheat Field》.pdf

Journal of Integrative Agriculture 2014, 13(11): 2378-2388 November 2014 RESEARCH ARTICLE Effects of Tillage Practices on Water Consumption, Water Use Efficiency and Grain Yield in Wheat Field 1, 2 1 1 1 1 1 ZHENG Cheng-yan , YU Zhen-wen , SHI Yu , CUI Shi-ming , WANG Dong , ZHANG Yong-li and ZHAO Jun-ye3 1 Key Laboratory of Crop Ecophysiology and Farming Systerm, Ministry of Agriculture/Shandong Agricultural University, Tai’an 271018, P.R.China 2 Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China 3 Key Laboratory of Digital Agricultural Early-Warming Technology, Ministry of Agriculture/Institute of Agricultural Information, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China Abstract Water shortage is a serious issue threatening the sustainable development of agriculture in the North China Plain, with the winter wheat (Triticum aestivum L.) as its largest water-consuming crop. The effects of tillage practices on the water consumption and water use efficiency (WUE) of wheat under high-yield conditions using supplemental irrigation based on testing soil moisture dynamic change were examined in this study. This experiment was conducted from 2007 to 2010, with five tillage practice treatments, namely, strip rotary tillage (SR), strip rotary tillage after subsoiling (SRS), rotary tillage (R), rotary tillage after subsoiling (RS), and plowing tillage (P). The results showed that in the SRS and RS treatments the total water and soil water consumptions were 11.81, 25.1