P. Alila, K. Azungla Pongener
Passionfruit, a perennial climber of Passiflora, is a crop that is highly responsive to nutrients. INM (integrated nutrient management) is recognized as a viable solution to address suboptimal production and multiple nutrient constraints. A total of 13 INM treatments were evaluated for their effect on yield of the Kaveri variety and changes in soil fertility on manure-treated Alfisol (29°45’43” N latitude; 93°53’04” E longitude): 100% NPK (T0), 75% NPK + Azospirillum (T1), 75% NPK + Azotobacter (T2), 75% NPK + Phosphotica (T3), 50% NPK + Azospirillum (T4), 50% NPK + Azotobacter (T5), 50% NPK + Phosphotica (T6), 25% NPK + Azospirillum (T7), 25% NPK + Azotobacter (T8), 25% NPK + Phosphotica (T9), Azospirillum + Phosphotica (T10), Azotobacter + Phosphotica (T11), Azospirillum + Azotobacter + Phosphotica (T12). The highest fruit yield per plant was observed with T7 (10.0 t ha-1 with fruit weight of 94 g fruit-1) followed by T6 (9.5 t ha-1 with fruit weight of 100 g fruit-1) and T12 (8.14 t ha-1 with fruit weight of 81 g fruit-1) compared to T0 (2.7 t ha-1 with fruit weight of 54 g fruit-1). The studies, provided a strong evidence that a starter dose of inorganic fertilizers is necessary to harness the efficacy of microbial transformations vis-a-vis nutrient availability for improved fruit yield.
Alila, P. and Azungla Pongener, K. (2012). INTEGRATED NUTRIENT MANAGEMENT OF PASSIONFRUIT ON ALFISOL. Acta Hortic. 928, 155-162
DOI: 10.17660/ActaHortic.2012.928.18
Passiflora edulis, INM, biofertilizers, production, fruit quality

Acta Horticulturae