Evaluation of levels and methods of phosphatic fertilizer application to potatoes in acidic hill soils

Field experiments were conducted in acidic brown hill soils of Fagu (R. P.) during 1975 and 1976 to find the optimum P dose and best method of its application to potatoes (var. Kufri Jyoti). P application increased the tuber yields significantly and the optimum P dose worked out was 52.0 kg/ha. P application increased the size and dry matter content of tubers, P content of leaves and P uptake by the tuber. The P content of the leaves at 60 days after planting was significantly correlated with the tuber yield. Furrow placement of P was significantly better than broadcasting and band placement, in increasing the tuber yield. P content of leaves and P uptake by the tubers.