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Cassava Water Footprint Assessment in Various Irrigation Management |
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| รหัสดีโอไอ | |
| Creator | 1. Walaiporn Sasiprapa 2. Jinnajar Hansethasuk 3. Kusuma Rodpeawpan 4. Prathompong Wongsuwan 5. Darunee Phangrerk 6. Saowaree Bumrung 7. Waree Wenworn 8. Sainam Udpuay 9. Anusorn Tiensiriroek |
| Title | Cassava Water Footprint Assessment in Various Irrigation Management |
| Publisher | Department of Agriculture |
| Publication Year | 2561 |
| Journal Title | Thai Agricultural Research Journal |
| Journal Vol. | 36 |
| Journal No. | 2 |
| Page no. | 173-185 |
| Keyword | water footprint, cassava, irrigation management, ?????????????????, ???????????, ???????????? |
| URL Website | http://at.doa.go.th/journal |
| Website title | Thai Agricultural Research Journal |
| ISSN | 0125-8389 |
| Abstract | Water footprint is used as a tool to measure both direct and indirect water used bycrops. Water footprint of cassava production was examined under 3 water managements,including irrigation condition (Nakornratsrima), limited-irrigation condition (Kampangpet) andrainfed condition (Rayong). One ton of cassava from 2 consecutive growing seasons between2015 and 2018 was used to calculate water footprint. The study showed that the averagedwater footprint of cassava was 147-366 m3/ton, comprised of 48-87% or 92-339 m3/tongreen, 0-9% or 0-21 m3/ton blue and 13-48% or 29-97 m3/ton grey water. Irrigationconditions had low water footprint of 211 m3/ton, compared to 224 and 301 m3/ton oflimited-irrigation and rainfed conditions, respectively. Higher yield gave low water footprint,whereas irrigation as crop water requirement gave a higher yield. Varieties and planting timeswere the main factors determining water footprint differences, although cassava was grownat the same farm. In water-limited area, planting in June caused crop water deficit. Optimumplanting date and supplemental irrigation were needed, particularly at initial stages of growth.Growing in the late rainy season made water deficit during some growing periods. Inlimited water resource area, optimum growing period was a better choice. Planting in Juneshould be avoided due to inadequate rainfall for crop water use. In rainfed area, planting inNovember caused more severely water deficit during 3-5 months after planting, comparedto growing in January. Use a suitable variety would increase yield. |
