Abstract：In order to solve the problems of water resources shortage, low water use efficiency and "white pollution" in arid sand areas, a field experiment on 2-year degradable mulch drip irrigation was carried out in Ulan Buh sandy area in Inner Mongolia. Two types of film mulch(degradable film and ordinary film)and three irrigation quotas(low water, moderate water and high water)were involved, and six treatments were resulted in total. The effects of irrigation treatment on maize plant height, leaf area index, yield, water consumption and water use efficiency(WUE)were identified. The results showed that there was no statistical significance in the height, leaf area index and yield in degradable mulch. Moreover, the water consumption after tasseling stage was large, but the WUE was significantly low. The irrigation quota in degradable mulch has important influence on maize plant height, leaf area index, yield, water consumption and WUE. The increase of irrigation quota can promote maize plant growth, delay late maize aging and increase the yield of maize. In 2-year high water treatments, the highest yields of maize are 13 614.97 kg/hm2 and 13 726.68 kg/hm2, respectively, but have no statistical significance from that in the moderate water treatment. The water consumption rose with increasing irrigation quota, while WUE increased in a parabolic function of irrigation quota. In 2-year moderate treatments, the largest WUE was reached, and it was 2.77% and 19.56% better in average than those in both low and high water treatments.
丁宗江, 李仙岳*, 郭宇, 冷旭, 王美荣. 干旱沙区降解膜覆盖的玉米生长与耗水规律[J]. 排灌机械工程学报, 2018, 36(11): 1092-1097.
DING Zongjiang, LI Xianyue*, GUO Yu, LENG Xu, WANG Meirong. Growth and water consumption of maize under degradable mulch in arid sandy area. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(11): 1092-1097.
[1]李春芳.浅谈我国水资源现状[J]. 科技视界, 2012(26):511. LI Chunfang. The current situation of water resources in China[J]. Science and technology vision,2012(26):511.(in Chinese)[2]严昌荣,梅旭荣,何文清,等.农用地膜残留污染的现状与防治[J].农业工程学报, 2006,22(11):269-272. YAN Changrong, MEI Xurong, HE Wenqing, et al. Present situation of residue pollution of mulching plastic film and controlling measures[J]. Transactions of CSAE, 2006,22(11):269-272.(in Chinese)[3]GU Xiaobo, LI Yuannong, DU Yadan. Biodegradable film mulching improves soil temperature, moisture and seed yield of winter oilseed rape(Brassica napus L.)[J]. Soil & tillage research, 2017,171:42-50.[4]李仙岳,彭遵原,史海滨,等.不同类型地膜覆盖对土壤水热与葵花生长的影响[J].农业机械学报, 2015,46(2):97-103. LI Xianyue, PENG Zunyuan, SHI Haibin, et al. Effects of different degradable films mulching on soil water potential, temperature and sunflower growth[J]. Transactions of the CSAM, 2015,46(2):97-103.(in Chinese)[5]赵爱琴,李子忠,龚元石. 生物降解地膜对玉米生长的影响及其田间降解状况[J]. 中国农业大学学报,2005,10(2):74-78. ZHAO Aiqin, LI Zizhong, GONG Yuanshi. Effects of biodegradable mulch film on corn growth and its degradation in field[J]. Journal of China Agricultural University, 2005,10(2):74-78.(in Chinese)[6]王勇,白玲晓,赵举,等.喷灌条件下玉米地土壤水分动态与水分利用效率[J]. 农业工程学报, 2012,28(增1):92-97. WANG Yong, BAI Lingxiao, ZHAO Ju, et al. Dynamic variations of soil moisture in field and water use efficiency of maize under sprinkler irrigation[J]. Transactions of the CSAE, 2012,28(S1):92-97.(in Chinese)[7]王振华,王克全,葛宇,等. 新疆滴灌春小麦需水规律初步研究[J]. 灌溉排水学报,2010,29(2):61-64. WANG Zhenhua, WANG Kequan, GE Yu, et al. Preliminary study on water demand rules of spring wheat under drip irrigation[J]. Journal of irrigation and drainage, 2010,29(2):61-64.(in Chinese)[8]王振华,郑旭荣,姜国军.不同灌水量对滴灌春小麦生长与生理指标的影响[J]. 核农学报, 2015,29(3):538-548. WANG Zhenhua, ZHENG Xurong, JIANG Guojun. Effects of irrigation amount on the growth and physiological indexes of drip irrigated spring wheat[J]. Journal of nuclear agricultural sciences, 2015,29(3):538-548.(in Chinese)[9]李燕山,白建明,许世坤,等.不同灌水量对膜下滴灌冬马铃薯生长及水分利用效率的影响[J]. 干旱地区农业研究, 2015,33(6):8-13. LI Yanshan, BAI Jianming, XU Shikun, et al. Effects of different irrigation amount on winter potato growth and water use efficiency by drip irrigation under film[J]. Agricultural research in the arid areas, 2015,33(6):8-13.(in Chinese)
