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| DOI： |
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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 |
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