Response of Different Levels of N, P and K on Growth and Yield of Mango (Mangifera indica L.) cv. Kesar

Abstract

The experiment was conducted at the Fruit Research Station, Sakkarbaug, Junagadh Agricultural University, Junagadh, over two years, 2021-22 and 2022-23. The experiment followed a Randomized Block Design with Factorial concept (FRBD), consisting of 18 treatment combinations, each with three replications. The treatments included three nitrogen levels N1 (500 g/tree), N2 (750 g/tree), N3 (1000 g/tree), two phosphorus levels P1 (100 g/tree), P2 (150 g/tree) and three potassium levels K1 (500 g/tree), K2 (750 g/tree), K3 (1000 g/tree). The experimental results indicated that significantly highest plant growth, including plant height (0.27 m), plant spread on east-west (0.27 m) and north south (0.32 m), and number of panicles (236.97), was observed in pooled result under the application of nitrogen N3 (1000 g/tree), In terms of yield attributes, the treatment N3 (1000 g /tree) recorded the highest fruit set at pea stage (12.93) and marble stages (3.06), with maximum number of fruit per tree (165.19),  fruit yield per tree (40.50 kg) and fruit yield (7.26 t/ha) in pooled result. Regarding phosphorus levels, the application of phosphorus P2 (150 g/tree) significantly influenced various growth, yield and quality parameters and resulted in the highest number of panicles per plant (236.39), length of panicle (26.47 cm) along with an increased number of fruits per tree (164.94) and highest fruit yield per tree (40.43 kg). In potash treatments, K2 (750 g/tree) significantly influenced various growth and yield parameters like maximum number of panicle per plant (237.53), highest length of panicle (26.53 cm) and highest fruit yield per tree (39.68 kg/tree). On the basis of two years studies and results obtained from the present investigation bring the conclusion that growth, yield and quality parameters of mango were influenced by different levels of N, P and K. It seems quite logical to conclude that fertilizer application of 1000 g/tree nitrogen, 150 g/tree phosphorus and 750 g/tree potash has been found optimum fertilizer dose which improved growth and yield with higher net realization in mango cv. Kesar.