The Effects of Phosphorus Application on Shoot Dry Matter and Uptake of Phosphorus, Calcium and Zinc in Two Wheat Cultivars Grown in a High Clay Soil

Harran University, Department of Soil Science, Faculty of Agriculture, Şanliurfa, Turkey


KIZILGOZ, I. and E. SAKIN, 2013. The effects of phosphorus application on shoot dry matter and uptake of phosphorus, calcium and zinc in two wheat cultivars grown in a high clay soil. Bulg. J. Agric. Sci., 19: 675-678


Interactions of phosphorus (P) with calcium (Ca) and zinc (Zn) in different plant species have received a great deal of attention recently. A glasshouse pot experiment with different rates of P application (0, 30, 60, 90 and 120 mg P kg-1 soil) was conducted to investigate these interactions in two wheat varieties (Ege-88 and Gun-91). Increased application of P reduced shoot Zn concentration significantly. Shoot Ca concentration was also reduced by P application but the reduction was disproportionate to P application rate. These results demonstrate that P application could be one of the reasons for Zn and Ca deficiency. Therefore, the level of P application should be determined carefully in order to maximize yield.

Key words: phosphorus, calcium, zinc, uptake, clay soil

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