Effect of organic and mineral fertilizer on the yield of Cauliflower and nutrient content of Nitrogen, Phosphorus and Potassium.

Abstract

An experiment was conducted in one eld of Co11a ge of Agriculture - Baghdad University during 20 I I - 20 L gm 'Ing eason in a silty clay lo am soil to study the effect of added organic and mineral fertilizers in the yield of Cauliflower cv. (Sol.d snow) and concentration of nutrients N, P and K within randomized complete block desiW'l (RCBD) for fertiiization following transactions: one level of organic :fe rtilizer 1200 kg. ha 1 using fertilizer (Ho mobakter A}added before plantiJ!)g mixing with surface soil (0- 10 cm) and tow Levels of mineral fertilizers incluing half recommended levels of N 1 P, K; 120, 40 , 60 and complete level; 240 , 80, 120 Kg/ hectar, respectively. · Results showed a significant increase in the concentration of nutrients N, P and K in flower tablets of cauliflower plant with organic fertilizer addition as compared to untreated plants with increment percentage of 14.67, 14.28 and 7.70 % for these nutrients respectively. In addition , conc entrations of N, P and K increased by 28.76, 21.05 and 30.58 % for half recommended fertilizers levels and 40.27 , 31.57 and 41.75 % for complete recommended levels. Yield of flower tablets also increased with organic fertilizer addition by 40.89 % a d by 57.62, 97.66 % for half and complete mineral fertilizers addition, respec tively. The recommendation under the condition of this study was half mineral fertilizers levels can be reduced by organic fertilizers addition.