Studied the Interaction and Economics of Nitrogen and Phosphorus on Crop Growth, Relating Traits of Broccoli (Brassica oleracea L. var. italica)

An experiment was conducted at department of vegetable science, C.S. Azad University of Agri.& Technology Kalyanpur, Kanpur during kharif seasons of 2005–06 to find out the interaction and economics of Nitrogen and Phosphorus on crop growth of Broccoli variety green head Randomized Block Design was selected with four levels of Nitrogen (30, 60, 90, 120 kg/ha) and three levels of Phosphorus (30, 60, 90 kg/ha) with its basal dose of K2O @ 60kg/ha. As the regards the yield of Broccoli, Nitrogen & Phosphorus both showed direct response more pronouncely at the 90 kg/ha of fertilization. The results revealed significantly increased in the head yield of Broccoli (Nitrogen 170.15 and Phosphorus 160.38 q/ha., respectively).the significant result was found in the interaction of Nitrogen and Phosphorus 175.70 q/ha the maximum cost –benefit ratio was found 1:2.1.