摘要
研究了沙漠边缘玉米覆膜穴播栽培效益,结果表明:覆膜要比当地不覆膜常规栽培增产1586.2kg/hm2,增产率为24.5%,净产值增长16.64%,节水1950～2925m3/hm2,可缓解当地水资源缺乏问题;覆膜栽培具有抑蒸保墒、膨软土壤等多种生态效应;在风大沙多的气候条件下,覆膜穴播栽培中要注意几项技术措施的应用。
The benefit of plastic mulch cultivation of maize has bee n studied in desert fringe area. The results shows that the yield is increased by 1 586.2 kg/hm\+2 than nomulch, the increase percentage is 24.5%, and the n et o utput is increased by 16.64%. This cultivation technique can alleviate the contr adiction of water resource shortage, and it can also produce multiple eological effects, such as evaporation controlling, soil moisture keeping and soil sofenin g. Furthermore, the paper discusses some existing problems in maize mulch cultiv ation.
出处
《干旱地区农业研究》
CSCD
北大核心
2003年第1期58-60,共3页
Agricultural Research in the Arid Areas
基金
UNDP援助中国CPR/91/111项目"甘肃沙漠综合治理与持续农业
