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Phosphorus (P) fertilizers are usually supplied prior to or at planting of potato even though most P is taken up 40 to 80 d after emergence. This may lead to inefficient P use as a result of P leaching or fixation in the soil. This study evaluates the effects of split P application at multiple times during the growth period according to the plant's need for P. Potato (Solanum tuberosum L. cv. Ditta)...
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