EFFECT OF ORGANIC MANURES AND NITROGEN ON THE GROWTH AND YIELD OF BRINJAL (Solan maongma L)

Abstract

Brinjal (Solanum melongena L.) is one of the most important vegetable crops in terms of both acreage and production in Bangladesh and widely cultivated throughout the country. The experiment was carried out during the period from March to October 2006 at Sher-c-Bangla Agricultural University, Dhaka Lo find out the effect of organic manures and different levels of nitrogen on the growth and yield of brinjal. There were three nitrogen levels, No (control): No nitrogen, N1: 100 kg nitrogen/ha and N2: 150 kg nitrogen/ha and three different treatments of manures; Mo (Control): No manure, M I 0 ton cowdung /ha and M2: 3 ton poultry litter/ha. The experiment was laid out in a randomized complete block design (RCBD) with three replications. Increasing the dose or nitrogen increased the plant height, number of leaves, days Lo first flowering, number of flower, number of fruit, length and diameter or fruit, weight or x 1: individual fruit, total yield of fruit per plant and number of fruit per plant. Plan! height (45.18 cm), number of leaves (93.0), length ( 13.70) and diameter of fruit (4.0), number of fruit per plant ( 17.8), weight of individual fruit (88.92 g) and total weight of fruit per plant (1602. I g) was the highest in M1• M1 gave the highest yield than M2 and Mo (control). The combined effect or M1 and N~ produced the highest yield (30.20 ton/ha) of brinjal. Maximizing the yield or brinjal besides organic manures inorganic fertilizer (nitrogen) needed to be used