摘要
对制种玉米在垄膜沟灌和条膜覆盖两种栽培方式下的产量和水分利用效率进行了对比研究,结果表明:垄膜沟灌栽培具有较好的增产、节水、增温效应,与对照条膜栽培相比,5~25 cm土层地温提高0.92℃;在相同的灌溉定额下,制种玉米千粒重增加9.94~46.01 g,穗粒数增加6.10~46.78粒,增产1.63%~40.44%,水分利用效率提高4.17%~34.16%;垄膜沟灌栽培条件下制种玉米适宜灌溉定额为450 mm,与对照相比,节水1 500 m3.hm-2,与当地大田灌溉定额720 mm相比,节水2 700 m3.hm-2,节水效果显著。
Study the yield and water use efficiency of seed corn by the cultivation methods of ridge with plastic film mulching-furrow irrigation and strip plastic film mulching, the results showed that ridge with plastic film mulching-furrow irrigation method possess better effect of increasing seed corn yield, saving irrigation water and soil temperature raising. Compared with strip plastic film mulching method,soil temperature of 5-25 cm soil layer raised O. 92℃, when the water irrigation volume is same , the thousand-grain weight and seeds per spike of seed corn increased 9.94-46. O1 g and 6.10-46.78 respectively, and the yield increased by 1.63%-40.44%,water use efficiency increased by 4.17%- 34.16%. Under the circumstance of ridge with plastic film mulching-furrow irrigation cultivation, the suitable irrigation water volume is 450 mm, which saved water 1 500 m^3.hm^-2 compared with CK, saved water 2 700 m^3.hm^-2 compared with local farm irrigation water volume 720 mm, the watersaving effect is very obvious.
出处
《西北农业学报》
CAS
CSCD
北大核心
2007年第4期83-86,共4页
Acta Agriculturae Boreali-occidentalis Sinica
基金
国家"863"项目
北方干旱内陆河灌区(甘肃张掖)节水农业综合技术体系集成与示范(2002AA2Z4191)第9子专题研究内容
关键词
制种玉米
垄膜沟灌
地温
产量
水分利用效率
Seed corn
Ridge with plastic film mulching-furrow irrigation
Soil temperature
Yield
WUE