Influence of Liming and Nutrients on the Changes in pH, Nutrients Availability and Yield of Wetland Banana in a Flooded Valley Soil

Field experiment was conducted in flooded valley Fe toxicity polluted coastal acid soil of the high rainfall zone of Tamil Nadu state in India to determine the effect of application of nutrients with and without lime (9.6t/ha) (to bring pH to neutral range) on the changes in soil fertility status and yield of wetland banana. The results showed that the soil pH, availability of major nutrients, hot water soluble B and yield of bunch increased, while all forms of Fe got appreciably reduced for liming. Although the application of fertilizers played significant role in masking the toxicity pollution of excess Fe, the soil application of lime, N, P and K together with foliar spray of multinutrients (1%Diammonium phosphate, 1% Muriate of potash, 0.5% ZnSO4, 0.2% CuSO4 and 0.2% borax) thrice at early and late vegetative stages and inflorescense initiation stage accounted highest bunch yield of 39.4 t/ha besides without expression of any toxicity pollution symptoms.