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| 设施栽培菠菜需水规律与作物系数研究 | |
| 引用本文： | 叶澜涛,彭世彰,王仰仁,孙书洪,徐俊增.设施栽培菠菜需水规律与作物系数研究[J].节水灌溉,2009(5). |
| 作者姓名： | 叶澜涛 彭世彰 王仰仁 孙书洪 徐俊增 |
| 作者单位： | 1. 河海大学水文水资源与水利工程科学国家重点实验室,南京,210098;天津农学院水利系,天津,300384 2. 河海大学水文水资源与水利工程科学国家重点实验室,南京,210098 3. 天津农学院水利系,天津,300384 |
| 基金项目： | 国家自然科学基金资助项目(50679055) |
| 摘 要： | 根据设施栽培蔬菜需水量试验资料,分析了设施栽培春菠菜和冬菠菜在全生育期内的需水规律和累积需水规律;采用FAO-56单作物系数法计算了设施栽培春菠菜和冬菠菜的作物系数,分析了2种作物的作物系数在全生育期内的变化规律;引入Logistic曲线划分的生育阶段对设施栽培作物系数进行了进程修正,引入气象修正因子对其进行了数值修正.结果表明,设施栽培春菠菜与冬菠菜作物需水规律随生长发育表现为先增后减变化规律,作物累积需水量表现出符合Logistic曲线的慢一快一慢的累积规律;作物系数呈与需水规律一致的变化规律;进程、数值双重修正后的作物系数值更加接近实测值. |
| 关 键 词： | 设施栽培 需水规律 Logistic曲线 作物系数 |
Research on Water Requirement Rule and Crop Coefficient of Spinach under Facility Cultivation |
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| YE Lan-tao , PENG Shi-zhang , WANG Yang-ren , SUN Shu-hong , XU Jun-zeng.Research on Water Requirement Rule and Crop Coefficient of Spinach under Facility Cultivation[J].Water Saving Irrigation,2009(5). | |
| Authors: | YE Lan-tao PENG Shi-zhang WANG Yang-ren SUN Shu-hong XU Jun-zeng |
| Institution: | 1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering;Hohai University;NanJing 210098;China;2.Department of Hydraulic Engineering;Tianjin Agicultural University;Tianjin 300384;China |
| Abstract: | According to the data of vegetable water requirement experiment under facility cultivation,the water requirement rules and cumulative water requirement rules of spring spinach and winter spinach under facility cultivation are analyzed and their crop coefficients are calculated through single coefficient approach recommended by FAO-56 in this paper.Moreover,the change rules of two kinds of crops in whole growing stage are analyzed,and the crop coefficients are amended in course according to the growth stage ... |
| Keywords: | facility cultivation water requirement rule Logistic curve crop coefficient |
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