| 引用本文: | 黄楚瑜,黄运湘,肖海强,等.不同负压给水对小白菜生长及土壤水分的影响[J].灌溉排水学报,2017,36(7):. |
| HUANG Chuyu,HUANG Yunxiang,XIAO Haiqiang,et al.不同负压给水对小白菜生长及土壤水分的影响[J].灌溉排水学报,2017,36(7):. |
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| 摘要: |
| 为筛选出南方冬季蔬菜小白菜（brassica）主动式供水灌溉（负压灌溉）最适宜的土壤水分条件，采用盆栽试验，研究了南方地区2种典型蔬菜土壤—红菜园土和潮菜园土，3个不同负压给水（-5.0、-7.5、-10.0 kPa）对土壤含水率、小白菜生长情况、耗水特性及其水分利用效率等的影响。结果表明，红菜园土种植冬季小白菜，最适宜的负压灌溉值为-10.0 kPa，土壤质量含水率为18.7%，潮菜园土最适宜的负压灌溉值为-5.0 kPa，土壤质量含水率为25.3%。 |
| 关键词: 小白菜； 负压灌溉； 生物量； 水分利用效率； 土壤质量含水率 |
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| Effects of Water Supply under Different Negative Pressure on Cabbage Growth and Soil Moisture Content |
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HUANG Chuyu， HUANG Yunxiang， XIAO Haiqiang，KUANG Meijuan， ZHANG Yangzhu， LONG Huaiyu
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College of Resources and Environmental Science, Hunan Agricultural University, Changsha 410128, China; Qionghai Institute of Agricultural Sciences, Qionghai 571429, China; Jinggangshan Cigarette Factory, China Tobacco Jiangxi Industrial LLC, Ji’an 343100, China; Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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| Abstract: |
| Using pot experiments, we investigated the impact of irrigation under negative pressure on growth of Chinese cabbage and winter vegetable brassica in attempts to select an irrigation method which could provide the most suitable moisture content for the two vegetables to grow in red-garden and alluvial soils in Southern China. Three water pressures, -5.0, -7.5 and -10.0 kPa were examined, and the results showed that for the red-garden soil the most suitable water pressure was -10.0 kPa with an associated soil moisture content of 18.7%, while for the alluvial garden soil, the most suitable water pressure was -5.0 kPa with an associated moisture content of 25.3%. |
| Key words: Chinese cabbage; irrigation under negative water pressure; biological yield；water use efficiency； soil water content |
