EFFECT OF MANGO VARIETIES AND FERTILIZER ON THE GROWTH AND YIELD OF CHILLI

Abstract

A field experiment was carried out at the Mithapukur upazila, Rangpur during January, 2020 to April, 2020 to evaluate the performance of chili production under three different mango variety based agroforestry systems. The experiment was laid out in two factorial RCBD with 3 (three) replications. Factor A (Three Variety treatment) viz. V1= BARI Amm-11, V2= BARI-4 and V3= Thai Baromasi and Factor B (Four Fertilizer Applications) viz. F1= No Fertilizer, F2= Cow-dung, F3= Chemical fertilizer and F4= Chemical fertilizer + Cow-dung. Therefore there will be twelve treatment combinations (3 varietal treatment x 4 fertilizers application). The total numbers of experimental plots were 36. The result of the experiment revealed plant height (00, 15, 30 and 45 days after transplanting: DAT), number of leaf/plant (00, 15, 30 and 45 DAT), first flowering days after transplanting, first fruiting days after transplanting, number of fruit/plant, weight of fruit/plant (g), total Number of fruit/plot, total weight of fruit/plot (kg), fruit length (cm), fruit diameter (cm), fresh weight/Plant (g), dry weight/Plant (g) and yield (t/ha) of chili significantly varied due to different varietal treatments and fertilizer applications when cultivated under three mango based agroforestry systems. In case of main effects of varietal treatments, the highest chili fruit yield (4.97 t/ha) was recorded from the BARI Amm-4 (V2) treatment and the lowest fruit yield (3.12 t/ha) was obtained from the Thai Baromasi (V3) based agroforestry system. In case of main effects of fertilizer applications, the highest chili fruit yield (4.69 t/ha) was recorded from the plot where chemical fertilizer (F3) was applied and the lowest fruit yield (3.62 t/ha) was obtained from the plot where no fertilizer (F1) was applied. In case of interaction effects of the varietal treatments and fertilizer applications on chilli, the highest chili fruit yield (5.62 t/ha) was observed from V2F3 (BARI Amm-4 + Chemical fertilizer) combination. From the economic point of view, the highest benefitcost ratio (2.83) was also recorded from the V2F3 treatment combination and the lowest benefit-cost ratio (1.56) was observed in those plots where chili was grown under Thai Baromasi mango variety (V3) with cow-dung (F1) application. Not much information is available on the use of different mango variety as varietal treatment associated with other crops such as chilli. So, this research findings are helpful for selection mango orchard according to variety for chilli cultivation as well as others crops. Keywords: Mango, Fertilizer, Chilli, Growth, Yield, Variety