| Makale Türü | Özgün Makale |
| Makale Alt Türü | Diğer hakemli uluslarası dergilerde yayınlanan tam makale |
| Dergi Adı | Revue De Cytologie Et Biologie Végétales |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2005 |
| Cilt No | 28 |
| Sayfalar | 128 / 134 |
| Özet |
| Some of the applied fertilizer P remains in fields as residual part, and there may be considerable site specific P accumulations in field soil. Whereas, conventional soil sampling methods only estimate average soil P levels in the fields. Evaluating the new strategies eliminating the high heterogeneity of the available soil P will be valuable for more realistic soil fertility management and sustainability of agro-ecosystems. In this study, topsoil (0-20 cm), subsoil (20-40 cm) and plant samples were collected from the plots based on a 25 x 25 m grids under the wheat plants. The coefficient of variance (CV), kurtosis and skewness values revealed that a great spatial variability occurred in available P and organic matter contents for both topsoil and subsoil. Contour maps for available soil P and plant P concentrations under the wheat field indicated that uniform P fertilizer managements resulted in increasing unequal soil P … |
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