摘要
为了提高民勤绿洲水资源利用率，在该地区棉田进行了滴灌、半固定式喷灌和渠道防渗灌溉3种不同灌溉模式的节水综合效益比较试验。结果表明，与大水漫灌相比，防渗渠灌节水40．4％，滴灌节水49％～55．6％，喷灌节水59．2％；防渗渠灌、滴灌和喷灌分别省工3．6％、16．2％和25．1％；滴灌、喷灌和防渗渠灌分别节电38．5％、31．1％和29．2％。滴灌和防渗渠灌收效明显，可在该地区推广应用。
In order to improve water resources use efficiency in Minqing oasis, trial of irrigating cotton is done by three different ways, which is drip irrigation, semifixation spray irrigation and seepage-preventing ditch irrigation. By study of one growth season, it showed that seepage-preventing ditch irrigation economize 40.4% water, drip irrigation economize 49- 55.6 % water and spray irrigation economize 59.2 % water; Seepage - preventing ditch irrigation, drip irrigation and spray irrigation save work respectively 3.6%, 16.2% and 25.1%, economize electricity respectively 29.2%, 38.5 % and 31.1%. Furthermore, the result of water-saving irrigation of oasis cotton shows that drip irrigation and seepage-preventing ditch irrigation have obvious effect and can apply in this region.
出处
《干旱地区农业研究》
CSCD
北大核心
2006年第3期85-88,共4页
Agricultural Research in the Arid Areas
关键词
棉花
节水灌溉
综合效益
cotton
water-saving irrigation
synthetical efficiency
