Effect of Time of Application of Potassium on Yield of Rice

Abstract

Experiments were conducted during Kharif and rabi seasons of 1985-1986 at Tamil Nadu Agricultural University, Coimbatore to study the response of application of yield attributes such as number of panicles hill, filled grains panicle'' and thousand grain weight were positively influenced by level and time of K application. During Kharif, application of 50 kg.ha K, O applied basally at planting produced greater response while during rabi, 50 kg.ha¹ K,O applied in two equal splits at planting and panicle initiation resulted in high response. Application of at least part of K at planting as basal dose was superior to entire K applied as top dressing alone at later growth stages.