| 营养液膜条件下番茄苗期间歇灌溉的水势研究 |
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| 引用本文： | 陶国富,陈海生,崔绍荣.营养液膜条件下番茄苗期间歇灌溉的水势研究[J].江西农业学报,2003,15(1):21-24. |
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| 作者姓名： | 陶国富 陈海生 崔绍荣 |
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| 作者单位： | 浙江大学,农业生物环境工程研究所,浙江,杭州,310029 |
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| 摘 要： | 研究了营养液膜栽培番茄在3种间歇灌溉条件下的水势变化,并分析了苗期番茄叶水势与温度、相对湿度和光照强度之间的相互关系。结果表明:间隔供水时间为30min的番茄植株日水势变化较大,其趋势是随着光照强度和温度的增加而降低,随相对湿度的增加而升高。从番茄生产的节水灌溉角度看,以每隔20min供水15s的方式最为经济合理。
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| 关 键 词： | NFT 水势 节水灌溉 番茄 苗期 |
| 文章编号： | 1001-8581(2003)01-0021-04 |
| 修稿时间： | 2002年12月5日 |
Study on Water Potential of Tomato Seedling Irrigated Intermittently through Nutrition Film Technique |
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| Abstract: | The changes of water potential of tomato seedling which was irrigated intermittently through nutrition film technique were studied,the relationship between water potential of tomato leaf and air temperature, relative humidity, illumination was analyzed, the results indicated that under the condition of 15 seconds' irrigation with 30 minutes' intermission, the diurnal water potential changed greatly, it decreased as illumination and air temperature increased, while it rose as relative humidity increased. In view of the water-saving irrigation and growth of tomato seedling, 15 seconds' irrigation with 20 minutes' intermission was the most economic. |
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| Keywords: | NFT |
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