ESTIMATING THE CROP COEFFICIENT FOR CROPS CULTIVATED IN UPSTREAM AREA OF XUAN HUONG LAKE, DALAT CITY
Applying Lysimeter method combined with CROPWAT model, crop coefficient of two types of vegetables (cabbage and Chinese cabbage) and three types of flowers (chrysanthemum, lily, and lisianthus) cultivated in the upstream area of Xuan Huong lake, Dalat city has been identified. Among the researched p...
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Dalat University
2020-05-01
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| Series: | Tạp chí Khoa học Đại học Đà Lạt |
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| Online Access: | http://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/580 |
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| author | Nguyễn Thị Thanh Thuận Chế Đình Lý Hồ Thị Hằng |
| author_facet | Nguyễn Thị Thanh Thuận Chế Đình Lý Hồ Thị Hằng |
| author_sort | Nguyễn Thị Thanh Thuận |
| collection | DOAJ |
| description | Applying Lysimeter method combined with CROPWAT model, crop coefficient of two types of vegetables (cabbage and Chinese cabbage) and three types of flowers (chrysanthemum, lily, and lisianthus) cultivated in the upstream area of Xuan Huong lake, Dalat city has been identified. Among the researched plants, the Chinese cabbage has the lowest coefficients of crops in all three initial, middle, and late crop seasons (respectively, 0.3, 1.25, and 0.81). A crop coefficient of Chrysanthemum is the largest in the middle stage (Kcmid = 1.4), followed by cabbage (Kcmid = 1.3). Kcmid of Chinese cabbage, Lily, and Lisianthus are approximately the same (respectively 1.25, 1.27, and 1.25). The chrysanthemum still has the large water demand in the final stage, it was reflected in Kcend = 1.07, followed by lily (1.05) and lisianthus (1.00) while Chinenes cabbage and cabbage in this stage is only at 0.81 and 0.93. It can be explained about this difference that because flowers still need a lot of water to provide for the flowering process and evaporation of leaves. When a crop coefficient is available, the calculation of water demand will become extremely simple through the correlation equation between the crop coefficient (Kc), the actual evapotranspiration (ETc), and the reference evapotranspiration (ETo). Therefore, we can have an effective irrigation plan and a better irrigation water management. |
| format | Article |
| id | doaj-art-9f00949f00ec4c7c9f7678d0f0650f27 |
| institution | Kabale University |
| issn | 0866-787X 0866-787X |
| language | English |
| publishDate | 2020-05-01 |
| publisher | Dalat University |
| record_format | Article |
| series | Tạp chí Khoa học Đại học Đà Lạt |
| spelling | doaj-art-9f00949f00ec4c7c9f7678d0f0650f272025-02-02T20:08:56ZengDalat UniversityTạp chí Khoa học Đại học Đà Lạt0866-787X0866-787X2020-05-01102284110.37569/DalatUniversity.10.2.580(2020)307ESTIMATING THE CROP COEFFICIENT FOR CROPS CULTIVATED IN UPSTREAM AREA OF XUAN HUONG LAKE, DALAT CITYNguyễn Thị Thanh Thuận0Chế Đình Lý1Hồ Thị Hằng2Trường Đại học Đà LạtĐại học Quốc gia TP. Hồ Chí MinhTrường Đại học Đà LạtApplying Lysimeter method combined with CROPWAT model, crop coefficient of two types of vegetables (cabbage and Chinese cabbage) and three types of flowers (chrysanthemum, lily, and lisianthus) cultivated in the upstream area of Xuan Huong lake, Dalat city has been identified. Among the researched plants, the Chinese cabbage has the lowest coefficients of crops in all three initial, middle, and late crop seasons (respectively, 0.3, 1.25, and 0.81). A crop coefficient of Chrysanthemum is the largest in the middle stage (Kcmid = 1.4), followed by cabbage (Kcmid = 1.3). Kcmid of Chinese cabbage, Lily, and Lisianthus are approximately the same (respectively 1.25, 1.27, and 1.25). The chrysanthemum still has the large water demand in the final stage, it was reflected in Kcend = 1.07, followed by lily (1.05) and lisianthus (1.00) while Chinenes cabbage and cabbage in this stage is only at 0.81 and 0.93. It can be explained about this difference that because flowers still need a lot of water to provide for the flowering process and evaporation of leaves. When a crop coefficient is available, the calculation of water demand will become extremely simple through the correlation equation between the crop coefficient (Kc), the actual evapotranspiration (ETc), and the reference evapotranspiration (ETo). Therefore, we can have an effective irrigation plan and a better irrigation water management.http://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/580cropwathệ số cây trồnglysimeter. |
| spellingShingle | Nguyễn Thị Thanh Thuận Chế Đình Lý Hồ Thị Hằng ESTIMATING THE CROP COEFFICIENT FOR CROPS CULTIVATED IN UPSTREAM AREA OF XUAN HUONG LAKE, DALAT CITY Tạp chí Khoa học Đại học Đà Lạt cropwat hệ số cây trồng lysimeter. |
| title | ESTIMATING THE CROP COEFFICIENT FOR CROPS CULTIVATED IN UPSTREAM AREA OF XUAN HUONG LAKE, DALAT CITY |
| title_full | ESTIMATING THE CROP COEFFICIENT FOR CROPS CULTIVATED IN UPSTREAM AREA OF XUAN HUONG LAKE, DALAT CITY |
| title_fullStr | ESTIMATING THE CROP COEFFICIENT FOR CROPS CULTIVATED IN UPSTREAM AREA OF XUAN HUONG LAKE, DALAT CITY |
| title_full_unstemmed | ESTIMATING THE CROP COEFFICIENT FOR CROPS CULTIVATED IN UPSTREAM AREA OF XUAN HUONG LAKE, DALAT CITY |
| title_short | ESTIMATING THE CROP COEFFICIENT FOR CROPS CULTIVATED IN UPSTREAM AREA OF XUAN HUONG LAKE, DALAT CITY |
| title_sort | estimating the crop coefficient for crops cultivated in upstream area of xuan huong lake dalat city |
| topic | cropwat hệ số cây trồng lysimeter. |
| url | http://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/580 |
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