EFFECT OF DU<':FERENT LEVEL OF MACRO NUTRIENTS (N, P, K and S) AND THEIR COMBINATIONS ON THE GROWTH AND YIELD OF BROCCOLI

Abstract

An experiment was carried out at the Horticultural Research Farm. of Sher-e Bangia Agricultural University (SAU). Dhaka during the period trorn September 2008 to March 2009. The experiment was laid out in Randomized Complete Block Design with three replications to observe the interaction effects ofN, P. K and S on growth and yield of broccoli. The experiment included 14 treatments using four doses of nitrogen, namely 0, 60, 120, 180 kg/ha, four doses of phosphorus, namely 0, 50, 100, f 50 kg/ha, four doses of potassium. namely 0, 70, 140 ,210 kg I ha and four doses of sulfur (Gypsum) namely. 0, 10, 20, 30 kg Iha. The results of the experiment showed that the application of NPK and S fertilizers influenced growth and curd yield of broccoli. The highest curd yield of broccoli (19.11 t/ha) was obtained from T, (N 120 I'll" K"" S," kg/ha) treatment while the lowest yield (7.52 t/ha) was produced by T1, (No 1'" K" S,' kg I ha) treatment.