Effects of irrigating water quotas on growth and grain yield of summer maize under deficit irrigation
QIU Xinqiang1,2, WANG Yanping1,2, HE Gang1,2, QIN Haixia1,2, ZHANG Yushun1,2, LU Zhenguang1,2*
1.Henan Provincial Water Conservancy Research Institute, Zhengzhou, Henan 450003, China; 2.Center of Efficient Irrigation Engineering and Technology Research of Henan Province, Zhengzhou, Henan 450003, China
Abstract：In order to seek the reasonable water-saving and high efficiency irrigation indexes of summer maize, lysimeter experiments were imposed to study the variation of two agronomic characters, grain yield and water use efficiency(WUE)under four irrigating water quotas and two soil water deficits. The results show that the leaf area index(LAI)of the early stage of summer maize is increasing with the increase of irrigating water quotas, and the normal plant height can still be guaranteed by timely rewatering after light drought. The water consumption and grain yield decrease with the increase of drought severity, but there is no trend change with the increase or decrease of irrigating water quotas. The WUE is generally higher under irrigating water quota 75, 90 and 105 mm, invariably light drought treatments can attain higher WUE under the same irrigating water quotas. In combination with actual production, with the goal of high yield and high moisture productivity, It is recommended that irrigating water quota 60 mm before jointing and 75 mm after jointing as reasonable water-saving irrigating water quotas, 45% field capacity(FC)at the seedling stage, 50%-55% FC at the jointing stage, 60% FC at the tasseling stage, and 50%FC during the grain filling period as reasonable lower limit of irrigation control.
邱新强,, 王艳平,, 和刚,, 秦海霞,, 张玉顺,, 路振广,*. 调亏模式下灌水定额对夏玉米生长及产量的影响[J]. 排灌机械工程学报, 2018, 36(8): 673-678.
QIU Xinqiang,, WANG Yanping,, HE Gang,, QIN Haixia,, ZHANG Yushun,, LU Zhenguang,*. Effects of irrigating water quotas on growth and grain yield of summer maize under deficit irrigation. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(8): 673-678.
[1]李全起,陈雨海,房全孝. 夏玉米种植中水分问题的研究进展[J]. 玉米科学, 2004(1): 72-75. LI Quanqi, CHEN Yuhai, FANG Quanxiao. Study progress on the water problems of summer maize plant [J]. Journal of maize sciences, 2004(1): 72-75.(in Chinese)[2]陈金平, 王和洲, 刘安能,等. 不同灌水策略对夏玉米水分利用效率和产量构成要素的影响[J]. 灌溉排水学报, 2017, 36(7):7-13. CHEN Jinping, WANG Hezhou, LIU Anneng, et al. Impact of irrigation schedule on water use efficiency and yield of summer maize [J]. Journal of irrigation and drainage, 2017, 36(7):7-13.(in Chinese)[3]王平,陈举林,王均华,等. 灌水模式对夏玉米耗水特性和干物质积累及分配的影响[J]. 中国农学通报, 2013(24): 20-27. WANG Ping, CHEN Julin, WANG Junhua, et al. The effect of irrigation treatments on water consumption chara-cteristic and dry matter accumulation in summer maize(Zea mays)[J]. Chinese agricultural science bulletin, 2013(24): 20-27.(in Chinese)[4]曹丹,陈道钳,吴茜,等. 复水对旱后不同玉米品种植株生长恢复能力及其生理响应特性的影响[J]. 西北植物学报, 2015(6): 1222-1228. CAO Dan, CHEN Daoqian, WU Xi, et al. Research on rewatering post-drought growth recovery capacity an physiological characteristics of different maize varieties [J]. Acta botanica boreali-occidentalia sinica, 2015(6): 1222-1228.(in Chinese)[5]路振广,邱新强,杨静敬,等. 不同灌水定额条件下夏玉米生长发育及耗水特性分析[J]. 节水灌溉, 2012(12): 46-50. LU Zhenguang, QIU Xinqiang, YANG Jingjing, et al. Experimental research on growth, development and water consumption characteristics of summer maize under different irrigation quotas [J]. Water saving irrigation, 2012(12): 46-50.(in Chinese)[6]孙景生, 肖俊夫, 张寄阳,等. 夏玉米产量与水分关系及其高效用水灌溉制度[J]. 灌溉排水, 1998(3):17-21. SUN Jingsheng, XIAO Junfu, ZHANG Jiyang, et al. Yield-water relation and irrigation schedule of high efficient water use for summer maize [J]. Journal of irrigation and drainage, 1998(3):17-21.(in Chinese)[7]杨玫, 孙西欢, 栗岩峰,等. 灌水定额对田间水利用系数的影响[J]. 太原理工大学学报, 2003, 34(3):364-366. YANG Mei, SUN Xihuan, LI Yanfeng, et al. The effect of irrigation water quota to field water utilization coefficient [J]. Journal of Taiyuan University of Technology, 2003, 34(3):364-366.(in Chinese)[8]胡燕哲, 吴明泽, 李涛龙,等. 玉米生长指标的土壤水分上下限调控机理[J]. 干旱地区农业研究, 2017, 35(1):165-170. HU Yanzhe, WU Mingze, LI Taolong, et al. Growth indicators of summer corn under irrigation soil moisture upper and lower limit [J]. Agricultural research in the arid areas, 2017, 35(1):165-170.(in Chinese)[9]邱新强, 路振广, 张玉顺,等. 不同生育时期干旱对夏玉米耗水及水分利用效率的影响[J]. 中国农学通报, 2013(27):68-75. QIU Xinqiang, LU Zhenguang, ZHANG Yushun, et al. Effects of drought in different growth stages on water consumption and water use efficiency of summer maize [J]. Chinese agricultural science bulletin, 2013(27):68-75.(in Chinese)[10]邱新强, 路振广, 孟春红,等. 土壤水分胁迫对夏玉米形态发育及水分利用效率的影响[J]. 灌溉排水学报, 2013, 32(4):79-83. QIU Xinqiang, LU Zhenguang, MENG Chunhong, et al. Effects of soil water stress on morphological development and water use efficiency of summer maize [J]. Journal of irrigation and drainage, 2013, 32(4):79-83.(in Chinese)
