Estimation of wet bulb formation in various soil during drip irrigation
Small water resources can be utilized more effectively in the drip irrigation system. To use limited water effectively, it is important to irrigate exactly in the root zone. First, hydraulic conductivities and diffusivities on various soil types were studied. The experiment was performed on sand (co...
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| Veröffentlicht in: | Journal of the Faculty of Agriculture, Kyushu University Kyushu University, 2007-02, Vol.52 (1), p.187-193 |
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| container_title | Journal of the Faculty of Agriculture, Kyushu University |
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| creator | Hao, A.(Kyushu Univ., Fukuoka (Japan). Faculty of Agriculture) Marui, A Haraguchi, T Nakano, Y |
| description | Small water resources can be utilized more effectively in the drip irrigation system. To use limited water effectively, it is important to irrigate exactly in the root zone. First, hydraulic conductivities and diffusivities on various soil types were studied. The experiment was performed on sand (coastal sand), sandy loam (masa), loam (kuroboku, volcanic ash) and clay (coral clay). Second, cylindrical compartment model to estimate wet bulb size was proposed. Wet bulb formations on various soils were studied with changing the irrigation intensity. Sand soil typically showed vertical elongation and light clay soil showed horizontal elongation. Loam (kuroboku) and sandy loam (masa) showed spherical elongations. Sandy loam (masa) showed slightly vertical elongated shapes than Loam (kuroboku). Third, the sizes of wetted area on the soil surface and of vertical depth were determine on specified irrigation intensities. |
| doi_str_mv | 10.5109/9304 |
| format | Article |
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Faculty of Agriculture) ; Marui, A ; Haraguchi, T ; Nakano, Y</creator><creatorcontrib>Hao, A.(Kyushu Univ., Fukuoka (Japan). Faculty of Agriculture) ; Marui, A ; Haraguchi, T ; Nakano, Y</creatorcontrib><description>Small water resources can be utilized more effectively in the drip irrigation system. To use limited water effectively, it is important to irrigate exactly in the root zone. First, hydraulic conductivities and diffusivities on various soil types were studied. The experiment was performed on sand (coastal sand), sandy loam (masa), loam (kuroboku, volcanic ash) and clay (coral clay). Second, cylindrical compartment model to estimate wet bulb size was proposed. Wet bulb formations on various soils were studied with changing the irrigation intensity. Sand soil typically showed vertical elongation and light clay soil showed horizontal elongation. Loam (kuroboku) and sandy loam (masa) showed spherical elongations. 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Loam (kuroboku) and sandy loam (masa) showed spherical elongations. Sandy loam (masa) showed slightly vertical elongated shapes than Loam (kuroboku). 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Wet bulb formations on various soils were studied with changing the irrigation intensity. Sand soil typically showed vertical elongation and light clay soil showed horizontal elongation. Loam (kuroboku) and sandy loam (masa) showed spherical elongations. Sandy loam (masa) showed slightly vertical elongated shapes than Loam (kuroboku). Third, the sizes of wetted area on the soil surface and of vertical depth were determine on specified irrigation intensities.</abstract><doi>10.5109/9304</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0023-6152 |
| ispartof | Journal of the Faculty of Agriculture, Kyushu University, 2007-02, Vol.52 (1), p.187-193 |
| issn | 0023-6152 |
| language | eng |
| recordid | cdi_crossref_primary_10_5109_9304 |
| source | Freely Accessible Japanese Titles; EZB-FREE-00999 freely available EZB journals |
| subjects | EFFICACITE EFFICIENCY EFICACIA IRRIGATION GOUTTE A GOUTTE PERMEABILIDAD PERMEABILITE PERMEABILITY RIEGO POR GOTEO SOIL SOL SUELO TEXTURAL SOIL TYPES TIPOS TEXTURALES DE SUELOS TRICKLE IRRIGATION TYPE DE SOL TEXTURAL USO DEL AGUA UTILISATION DE L'EAU WATER USE |
| title | Estimation of wet bulb formation in various soil during drip irrigation |
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