EFFECT OF NITROGEN AND PHOSPHORUS ON GROWTH, YIELD AND QUALITY OF CAPSICUM

Abstract

A field experiment was conducted ot the research thrin of Sher-c-Bafl&a Agricultural University. Dhaka during November 2006 to March 2007 to :;udy thc ....eels of nitrogen and phosphorus on growth. yield and quality of capsiculfi in i; Randomi:;d Complete l3ock Design (RCBD) with three replications. The treatments were 4 kvels N50, Ntco & N10, ofN (0,30. iOU & 50 kg ha designated as respectively) and 3 levels of P (0, 30 & 60 kv ha designated as P. respectively). Days to flower bud emergence, days to f ir st flower opening, plant height flowering and at first harvest, number of branches at first flowering . length and breadth of fruit and number of fruits per plant increased significantly with increasing nitrogen doses up to 100 kg N h&'. Uowevcr, plant height at final harvest, number of branches at first and final harvest, average weight of fruit, yield, thickness of pericarp and dry matter content increased significantly up to 150 kg N haS' (N3 treatment). On the other hand, days to flower bud emergence, plant height at first flowering, number of branches at first harvest, average weight of fruit, yield, thickness of periearp and dry matter content increased significantly with increasing levels of Pup to the treatment P (30 kg P hi'), where as plant height and number of branches at final harvest, length of Capsicun, treatment p2 number fruits per plant enhanced significantly up to the (60 kg P hi'). Considering the combined effect of nitrogen and phosphorus, the maximum significant days to flower bud emergence, days to first flower opening, days to first fruit set and plant height at final harvest were obtained from NP2 (100 kg N + the other hand, maximum length of capsicwfl, breadth of Capsicwn, P30 & Poo, at first 60 kg P hi'). On number of fruits per pluni. average weight of fruit. yield and dry matter content were found in the treatment combination N3 P, (150 kg N 30 kg P hi') The highest N content (1.71%) was observed in N,o treatment. but the highest concentration of N was obtained with N,sPo treatment. [he highest 1' concentratiOn (0.035%) from 0.027 to 0.03 5%.