1Central Potato Research Station, Jalandhar-144 003, (Punjab).
2Central Potato Research Institute, Shimla-171 001, (H.P.).
Publication No. 1448, CPRI, Shimla.
Soil and foliar application of potassium to potato was evaluated during 1993–94 and 1994–95 on the alluvial soils of Jalandhar (Punjab) for yield and fertilizer use efficiency. Soil application of K @ 99 kg/ha significantly increased tuber yield by 92 q/ha. The foliar spray of 2% KCl solution at 50 days after planting increased yield by 43 q/ha. However, the effect of foliar applied K decreased with the increase in rate of K applied to soil at planting. Recovery of applied K and utilization efficiency of foliar applied K was higher than that of soil applied K.
