Abstract
A field study was conducted at Jatri Kohna, district Sheikhupura to evaluate the effects of foliar spray (1.5 % of K solution) of KCI, K2S04 and KN03 on the yield of rice cv. 385. Foliar application of K2S04 gave better paddy and straw yields, number of tillers, potassium content of paddy and straw than the other two sources of K. Potassium recovery (72.87 %) and agronomic efficiency (13.12 kg of paddy kg1 of fertilizer applied) were also better in case of K2S04 than other two sources: KN03 (44.87% and 8.69 kg of paddy kg-1 of fertilizer applied) and KCI (22.40% and 5.66 kg of paddy kg-1 of fertilizer applied). Key words: Potassium; sources; foliar spray, rice
