Effect of integrated nutrient management in mango cv. Sunderja

Abstract

A field experiment was conducted to study the effect on integrated plant nutrient management in mango cv. Sunderja during 2009-10. Different vegetative growth parameters, viz. plant height, canopy height, plant spread (N-S) and (E-W) as well as tree volume were not influenced significantly. However, the treatment T8 comprising 500:250:250 g N:P:K/tree + 50 kg FYM + 10 kg vermicompost registered the maximum plant height, canopy height, plant spread (N-S) and (E-W) as well as tree volume. On the other hand, full dose of NPK alone (T1) resulted in the lowest vegetative growth. As regards with the fruiting parameters, the treatment T8 resulted in maximum number of fruits/ panicle, longer length and width, fruit weight, pulp weight, number of fruits and fruit yield. All the fruit quality parameters were found non-significant except TSS due to integrated plant nutrient management treatments. The total soluble solid was found highest (22.81°Brix) in T7 treatment, followed by T4 (22.63°Brix). The acidity was found lowest in T1 and T7 treatments and highest in T3, T5, T6, and T8 treatments, however the differences among the acidity values were non-significant. The pulp: stone and pulp: peel did not differ significantly due to integrated plant nutrient management treatments. However, the treatment T8 recorded the highest pulp: stone, whereas pulp: peel was highest in case of T4. Whereas, the second best pulp: stone was in T5 and pulp: peel in T8. On the other hand, the treatments T3 and T7 recorded lowest pulp: stone and pulp: peel. The shelf-life of mango fruits was influenced significantly due to integrated plant nutrient management treatments. The treatments T2, T6, T7 and T9 resulted in the maximum period of storage (>15 days) at room temperature. On the other hand, the control treatment having full dose of NPK only (T1) reduced the storage or shelf-life (9.9 days) of fruits.