Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice
We have developed a greenhouse technique by which a chosen soil moisture tension can be maintained continuously. The setup for supplying water at relatively constant soil moisture tension in pots includes five major components—water tank, W‐tube, water distribution system, soil moisture tension sens...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
1977
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/167992 |
| _version_ | 1855518126653833216 |
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| author | Alvarez, E.I. De Datta, S.K. |
| author_browse | Alvarez, E.I. De Datta, S.K. |
| author_facet | Alvarez, E.I. De Datta, S.K. |
| author_sort | Alvarez, E.I. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | We have developed a greenhouse technique by which a chosen soil moisture tension can be maintained continuously. The setup for supplying water at relatively constant soil moisture tension in pots includes five major components—water tank, W‐tube, water distribution system, soil moisture tension sensors, and pots. The W‐tube, which contains a predetermined amount of Hg, controls the soil moisture tension in the pots. Water can flow freely from the tank to the pots through the distribution system whenever the soil moisture tension exceeds that desired. Response to the sensors' demand for water is rapid.We have successfully used this setup to compare relative drought tolerance of rice (Oryza sativa L.) varieties and breeding lines. Another use of this setup might be to measure evapotranspiration (ET) almost instantaneously; the technique might be useful in some soil‐plant‐atmosphere‐water relationship studies. |
| format | Journal Article |
| id | CGSpace167992 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1977 |
| publishDateRange | 1977 |
| publishDateSort | 1977 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1679922025-05-14T10:39:32Z Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice Alvarez, E.I. De Datta, S.K. water stress soil water drought resistance We have developed a greenhouse technique by which a chosen soil moisture tension can be maintained continuously. The setup for supplying water at relatively constant soil moisture tension in pots includes five major components—water tank, W‐tube, water distribution system, soil moisture tension sensors, and pots. The W‐tube, which contains a predetermined amount of Hg, controls the soil moisture tension in the pots. Water can flow freely from the tank to the pots through the distribution system whenever the soil moisture tension exceeds that desired. Response to the sensors' demand for water is rapid.We have successfully used this setup to compare relative drought tolerance of rice (Oryza sativa L.) varieties and breeding lines. Another use of this setup might be to measure evapotranspiration (ET) almost instantaneously; the technique might be useful in some soil‐plant‐atmosphere‐water relationship studies. 1977-05 2024-12-19T12:57:55Z 2024-12-19T12:57:55Z Journal Article https://hdl.handle.net/10568/167992 en Wiley Alvarez, E. I.; De Datta, S. K. 1977. Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice. Soil Science Soc of Amer J, Volume 41 no. 3 p. 452-454 |
| spellingShingle | water stress soil water drought resistance Alvarez, E.I. De Datta, S.K. Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice |
| title | Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice |
| title_full | Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice |
| title_fullStr | Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice |
| title_full_unstemmed | Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice |
| title_short | Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice |
| title_sort | automatic feedback control to maintain constant soil moisture tension in the study of drought tolerance in rice |
| topic | water stress soil water drought resistance |
| url | https://hdl.handle.net/10568/167992 |
| work_keys_str_mv | AT alvarezei automaticfeedbackcontroltomaintainconstantsoilmoisturetensioninthestudyofdroughttoleranceinrice AT dedattask automaticfeedbackcontroltomaintainconstantsoilmoisturetensioninthestudyofdroughttoleranceinrice |