Is pH of greenhouse soils measured adequately?
We measured the soil pH on fourteen soil samples collected from greenhouses under intensive fertilizer application. All the soil samples contained carbonate, but the pH values measured by conventional method were too low in view of carbonate equilibrium. We examined the effect of the soil to water r...
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| Veröffentlicht in: | Journal of the Faculty of Agriculture, Kyushu University Kyushu University, 2009-10, Vol.54 (2), p.499-503 |
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| container_title | Journal of the Faculty of Agriculture, Kyushu University |
| container_volume | 54 |
| creator | Than, A.A., Kyushu Univ., Fukuoka (Japan) Shoji, K Mori, Y Fujitomi, S Wada, S |
| description | We measured the soil pH on fourteen soil samples collected from greenhouses under intensive fertilizer application. All the soil samples contained carbonate, but the pH values measured by conventional method were too low in view of carbonate equilibrium. We examined the effect of the soil to water ratio, shaking time and standing time and found that the pH gradually increased as the standing time was prolonged. It reached a maximum after 192 to 264 h of standing and then decreased. The maximum pH values were fairly close to those that are calculated from the thermodynamic equation based on carbonate equilibrium. |
| doi_str_mv | 10.5109/16137 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0023-6152 |
| ispartof | Journal of the Faculty of Agriculture, Kyushu University, 2009-10, Vol.54 (2), p.499-503 |
| issn | 0023-6152 |
| language | eng |
| recordid | cdi_crossref_primary_10_5109_16137 |
| source | Freely Accessible Japanese Titles - check A-Z of ejournals; Free E-Journal (出版社公開部分のみ） |
| subjects | ACID BASE EQUILIBRIUM CARBONATE CARBONATES CARBONATOS EQUILIBRE ACIDOBASIQUE EQUILIBRIO ACIDO - BASE GREENHOUSE SOILS http://www.fao.org/aos/agrovoc#c_1306 http://www.fao.org/aos/agrovoc#c_3378 http://www.fao.org/aos/agrovoc#c_34901 http://www.fao.org/aos/agrovoc#c_7192 http://www.fao.org/aos/agrovoc#c_87 PH DEL SUELO PH DU SOL SOIL PH SOIL SOLUTION SOL DE SERRE SOLUCIONES DEL SUELO SOLUTION DU SOL SUELO DE INVERNADEROS |
| title | Is pH of greenhouse soils measured adequately? |
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