The effect on some physical properties of a vertic tropaquept soil of the number of cultivations after different quantities of water and after different soaking periods |
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| Affiliation: | 1. Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas, Universidad Nacional Autónoma de México, Ciudad Universitaria, México DF 04510, Mexico;2. Centro de Geociencias, CGEO-UNAM, Universidad Nacional Autónoma de México, Blvd. Juriquilla No. 3001, Querétaro 76230, Mexico;3. Instituto Potosino de Investigación Científica y Tecnológica, División de Geociencias Aplicadas, Camino a la Presa San José, 2055, San Luis Potosí 78216, Mexico;1. State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China;2. Institute of Geological Sciences, Freie Unversitaet Berlin, Malteser Strasse 74-100, Haus D, Berlin 12249, Germany;3. Lunar and Planetary Science Laboratory, MUST — Partner Laboratory of Key Laboratory of Lunar and Deep Space Exploration, CAS, Macau, China;4. Sichuan Remote Sensing Geoinformatics Institute, Chengdu 610100, China;5. Institute of Geochemistry Chinese Academy of Sciences, Guiyang 550002, China |
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| Abstract: | A Vertic Tropaquept soil was cultivated four times at one month intervals after applying 100, 200 and 300 mm of water in amounts of 100 mm on various days. Results suggest that physical properties of the surface soil, including percolation, were not influenced markedly by cultivation after application of higher water quantities nor by the number of cultivations beyond a certain limit. One cultivation (7.5 kJ m−2) after an application of 200 mm water, and applied without any delay was found to be best. Thus, a saving of energy, water and time for wet cultivation of rice paddies could be achieved. |
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