宁夏贺兰山东麓淡灰钙土不同滴灌量下玉米耗水特征及其对产量的影响  

Water Consumption Characteristics of Maize under Varying Drip Irrigation Levels in Light Lime Soilat Eastern Foot of Helan Mountain in Ningxia and Their Impact on Crop Yield

作　　者：陈婷婷 Chen Tingting(Zhixin Huirong(Ningxia)Digital Technology Co.,LTD,Guyuan,Ningxia 756000)

机构地区：[1]智芯慧融(宁夏)数字科技有限公司,宁夏固原756000

出　　处：《宁夏农林科技》2024年第6期11-15,共5页Journal of Ningxia Agriculture and Forestry Science and Technology

摘　　要：针对宁夏贺兰山东麓淡灰钙土滴灌对玉米耗水特征及产量的影响,以宁单40为供试玉米,开展宁夏贺兰山东麓淡灰钙土不同滴灌量下对玉米耗水特征及产量影响的试验研究。结果表明,当玉米灌溉定额在840~4710 m^(3)·hm^(-2)的范围内,耗水量在2722~15479 m^(3)·hm^(-2)之间,灌溉水分利用率在9.71~3.43 kg·m^(-3)之间,滴灌量为3765 m^(3)·hm^(-2)时,玉米产量最高,为16.57 t·hm^(-2);当滴灌量超过3765 m^(3)·hm^(-2)时,玉米产量下降。因此,宁夏贺兰山东麓淡灰钙土玉米最佳灌溉定额为3765 m^(3)·hm^(-2)。研究结果将为宁夏贺兰山东麓淡灰钙土玉米灌溉种植提供理论依据。Aiming at the effects of drip irrigation on the water consumption characteristics and yield of maize in light lime soilat the eastern foot of Helan Mountain in Ningxia,Ningdan 40 was used as the test maize to study the effects of different drip irrigation amounts on the water consumption characteristics and yield of maize.The results showed that when the irrigation quota of corn was 840~4710 m^(3)·hm^(-2),the water consumption was 2722~15479 m^(3)·hm^(-2),the irrigation water utilization rate was 3.43~9.71 m^(3)·kg^(-1),and the drip irrigation amount was 3765 m^(3)·hm^(-2),the corn yield was the highest.16.57 t·hm^(-2);When drip irrigation exceeds 3765 m^(3)·hm^(-2),corn yields decline.Therefore,the optimal irrigation quota of light lime soil corn at the eastern foot of Helan Mountain in Ningxia is 3765 m^(3)·hm^(-2).The research results will provide a theoretical basis for irrigating maize in light lime soil at the eastern foot of Helan Mountain in Ningxia.

关 键 词：玉米 产量 耗水特征 灌溉定额 

分 类 号：S513[农业科学—作物学]