EFFECTS OF POTASSIUM AND BORON ON THE GROWTH AND YIELD OF CHILI (Capsicum annuum L.)

Abstract

A field experiment was conducted at the Sher-e-Bangla Agricultural University farm, (Tejgoan soil series under AEZ 28) during Rabi season of October 2019-March 2020 to evaluate the effect of potassium (K) and boron (B) on the growth and yield of chili (Capsicum annuum L.). Two factor experiment with three rates of K (0, 75 and 100 kg K ha -1 ) and three rates of B (0, 1.5 and 3 kg B ha -1 ) was laid out in the Randomized Complete Block Design (RCBD) with three replication. Application of K and B significantly influenced the number of leaves plant -1 , number of fruits plant , yield and other yield parameters of chili. The maximum number of leaves plant (50.9) and number of branches plant -1 (9.2) were observed in K 2 B 2 treatment combinations. The maximum number of flowers plant -1 (119) and maximum number of fruits plant (107.9) were recorded in K 2 B 0 treatment

combination. The maximum height of plant (33 cm) and fruit length (6.7 cm) were recorded in K 1 B 1. Highest weight of fruits as well as highest yield (10.74 t/ha) was obtained in treatment combination K 1 B 2 . The results of this research work indicated that the plants performed better in all parameters over the control treatment (K 0 B 0 ). Yield of chili was found maximum in K 1 B 2 treatment which was said to be the optimum dose of K and B among the treatment combinations and that was cost effective as well than K 2 B 2 which produced the similar yield

as K 2 B 1. So, It can be therefore, concluded from the above study that the treatment combination K 1 was found to a promising practice for the higher yield of chili in AEZ 28 (Madhupur Tract). -1 -1 -1 B 2