A study was conducted at farmer's field in Sheikhupura district to investigate the efficiency of different K fertilization methods for rice cv. 385. Various application methods (band placement, broadcast and fertigation) were compared as application before transplanting and 25 and 50 days after transplanting (OAT). Number of fertile tillers, straw and paddy yields were recorded. Plant samples collected at maturity were analyzed for K concentration to determine its uptake. Application of K through band placement in furrows before transplanting, broadcast at 25 OAT and fertigation at 25 OAT produced statistically higher yields. The maximum K uptake in paddy was also recorded with these methods of K application. The K fertigation at 25 OAT and band placement in furrows registered maximum K recovery as well as agronomic efficiency of rice cv. 385. Key words: Potassium application; methods; rice; Pakistan
F. Hussain, I.A. Mahmood, A. Shahzad. (2005) EFFICACY OF DIFFERENT METHODS OF POTASSIUM FERTILIZER APPLICATION ON PADDY YIELD, K UPTAKE AND AGRONOMIC EFFICIENCY, , Volume 42, Issue 1,2.
