Effect of NPK levels on yield and yield components of cabbage (brassica oleracea L. Var. Capitata)

摘要

Effect of NPK levels on yield and yield components of cabbage was studied at Horticulture Ornamental Nursery, The University of Agriculture, Peshawar. The experiment was laid out in Randomized Complete Block (RCB) Design with three replications. A total of sixteen treatments were replicated thrice, row-row and plant-plant distance were kept 60cm and 45cm respectively. Nitrogen was applied at the rate of 0, 50, 60 and 70kg ha-1, while phosphorus and potassium was applied at the rate of 90 and 60kg ha-1 respectively. The fertilizer level (70-90-60kg NPK ha-1) gave significant results with regard to curd weight plant-1 (976g), curd diameter plant-1 (13.67cm), yield plot-1 (5.87kg), total yield ha-1 (36.85 ton ha-1), while minimum values for these parameters were recorded in control. Significant values for the number of leaves plant-1 (24) and leaves weight plant-1(751g) was recorded at fertilizer level (70-90-60kg NPK ha-1). However plant height and survival percentage remain unaffected with the application of fertilizer. Thus among various levels used, nitrogen at the rate of 70kg ha-1with phosphorus and potassium @90 and 60 kg ha-1is recommended for cabbage growers in Peshawar.