不同覆膜方式对玉米制种产量及水分利用效率的影响  

Effects of Different Film Mulching Methods on Corn Seed Production and Water Use Efficiency

作　　者：王勇 

机构地区：[1]甘肃省张掖市农业科学研究院,甘肃张掖734000

出　　处：《现代农业科技》2016年第24期31-32,35,共3页Modern Agricultural Science and Technology

摘　　要：在定额灌水条件下,研究了不同覆膜和灌水方式对河西地区制种玉米产量的影响,为该地区发展节水、高效制种玉米栽培措施提供理论依据。试验设半膜平作漫灌(A)、半膜垄作沟灌(B)、全膜垄作沟灌(C)和不覆膜平作漫灌(CK)4种栽培模式,从制种玉米生长发育动态、土壤水热变化规律、产量及水分利用效率等方面比较了不同栽培技术的优越性。结果表明,不同处理对制种玉米产量影响显著,依次为全膜垄作沟灌>半膜垄作沟灌>半膜平作漫灌>不覆膜平作漫灌,全膜垄作沟灌处理较半膜平作漫灌、半膜垄作沟灌处理分别增产24.5%、9.3%,较不覆膜平作漫灌增产高达34.9%;水分利用效率全膜垄作沟灌处理最高,达1.79 kg/m3,其次为半膜垄作沟灌、半膜平作漫灌、不覆膜平作漫灌。由此可见,全膜垄作沟灌技术是河西地区制种玉米产业发展和地区经济社会可持续发展急需推广的节水高效栽培技术。In the quota of irrigation conditions,the effects of different mulching and irrigation methods on corn yield were studied in Hexi Area,the purpose is to provide a theoretical basis for the development of water-saving and high efficient corn cultivation. The test set 4 kinds of cultivation patterns, the advantages of different cultivation techniques were compared from maize growth and development dynamics, soil water and heat change rule,yield,water use efficiency.The results showed that the effects of different treatments on the seed yield of maize was significant,the order of treatment effect was C〉B〉A〉CK,compared with A,B treatment,C treatment increased 24.5%,9.3% ,compared with CK,yield up to 34.9%.The water use efficiency of C treatment was the highest,up to 1.79 kg/m^3,followed by B,A,CK. Thus the whole film ridge irrigation technology is worth popularizing in Hexi Area.

关 键 词：地膜覆盖 灌水方式 制种玉米 产量 水分利用效率 

分 类 号：S513[农业科学—作物学]