摘要
为了解决半干旱地区春季干旱问题,研究了不同灌溉方式对覆膜玉米的生长发育及产量的影响。试验采用大区对比,共4个处理,分别为坐滤水覆膜处理、坐滤水未覆膜处理、沟灌覆膜处理及沟灌未覆膜处理。结果表明:沟灌覆膜处理在土壤含水量、产量和水分利用率等方面均高于坐滤水覆膜处理。坐滤水覆膜处理的出苗时间早于沟灌覆膜处理,沟灌覆膜处理比坐滤水覆膜处理更加耐旱。因此,黑龙江省西部地区覆膜玉米种植应加大灌溉量,增加土壤含水量,提高苗期玉米抵御干旱的能力,遇到干旱应及时进行人工补灌,保证水分供给。
In order to solve the problems of the spring droughts and less rainfall, the effects of different irriga- tion method on yield of film-mulching maize were studied. The results showed that the furrow irrigation with mulching film had higher value than the irrigating sowing with mulching film on soil water content, yield, water use efficiency, and the emergence stage of irrigating sowing with mulching film was earlier than the furrow irri- gation with mulching film. It was concluded that the furrow irrigation with mulching film had more drought tol- erance than the irrigating sowing with mulching film. The amount of irrigation mulching planting maize in semi arid area and soil moisture content should be increased. The drought should be timely supplement irrigation.
出处
《黑龙江农业科学》
2014年第3期22-25,共4页
Heilongjiang Agricultural Sciences
基金
国家现代玉米产业技术体系资助项目(CARS-02-43)
东北平原北部(黑龙江)春玉米水稻持续丰产高效技术集成创新与示范资助项目(2011DAD16B11)
黑龙江省农业科学院青年基金资助项目(2012QN018)
黑龙江省院县共建资助项目
关键词
玉米
覆膜
灌溉方式
产量
maize
film-mulching
irrigation method
yield
