Effect of nutrient management on growth and yield of two tomato varieties in Chittagong Hill Tracts (CHTs) region of Bangladesh

The main goal is to investigate the effect of crop nutrient management on growth and yield of two tomato varieties in the Chittagong Hill Tracts (CHTs) region of Bangladesh. Two factors experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Factor A was two varieties of tomato namely, V1: BARI 2 and V2: BARI 15. Factor B was different types of fertilizer like F0 (Farmers practices), F1 (vermicompost), F2 (inorganic fertilizer), F3 (combined fertilizer: 3/4 vermicompost+ 1/4 inorganic fertilizers), F4 (control, no fertilizer). Soil characteristics and climatic conditions were recorded. Plant growth, flowering and fruit characters, and yield were found significantly different (p<0.05).  The highest plant height, flowering and fruit characters related to higher production were found in BARI 15 (V2) variety influenced by combined application of fertilizer F3 (3/4 vermicompost + 1/4 inorganic fertilizers). The maximum number of flower clusters per plant (9.66), fruit clusters per plant (8.13), individual fruit weight (117.7 g), fruit numbers per plant (51.17) were found in V2F3 and the same parameters were the lowest in V1F4. The results showed the highest production (95.50 t/ha) in V2F3 followed by V2F0 (81.70 t/ha), V2F1 (72.17 t/ha) and V2F2 (68.06 t/ha), and the lowest yield (27.70 t/ha) in V1F4. The highest fruit yield ((95.50 t/ha) found in V2F3 showed 80.84% higher compared to the V1F4 (27.70 t/ha) treatment. Considering the variety, the highest yield (74.05 t/ha) was found in V2 which was 40% higher yield compared to V1. Combined application of vermicompost and inorganic fertilizers performed best as the nutrient management and BARI 15 was found as a suitable variety for the CHTs climatic condition. Hence, the similar type fertilizers proportion can be applied for the other vegetables production in the farmers field for the healthy and eco-friendly environment achievement.