摘要
对滴灌条件下夏棉水肥耦合效应进行了田间试验。结果表明：根据夏棉不同生育阶段的需水特征和土壤水分状况，可分别采用滴灌和畦灌方式，比常规棉田畦灌节水23．3％～28．7％；对于中等肥力的棉田，在每hm2施纯氛300kg的范围内，随施肥量增加皮棉产量呈增加的趋势，在每hm2施纯氮150～225kg区间内，其产量增加较快。
To identify the relations between the water-fertilizer coupling and the cotton yield, the field tests are conducted. The results show that there are 23. 3% to 28.7% of water can be saved by using border and drip irrigation compared with the simple border irrigation. The cotton yield per hectare will be increased quickly when the quantity of N-fertilizer is in the range of 150 kg .hm-2 to 225 kg.hm-2.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
1998年第6期59-62,共4页
Journal of China Agricultural University
基金
国家教委回国人员基金
国家"九五"重大科技攻关项目
关键词
棉花
滴灌
施肥灌溉
cotton
drip irrigation
fertigation
