Efficacy of foliar versus soil application of micronutrients on the production of mango (Mangifera indica L.)
2024
Srividhya, S | Thilagam, P | Venilla, MA | Geetha, K | Aneesa Rani, MS
Soil test-based fertilizer recommendations were calculated for mango @1.25:0.60:0.90kg N: P2O5:K2O per tree and were applied for all eight treatments as per schedule in the Randomized block design in an experimental field. The pooled analysis of the results revealed that the application of Soil test based recommended dose of fertilizer application after harvest + Soil application of FeSO4 @ 200g + ZnSO4 @ 200g + MgSO4 @ 100g +CuSO4 @50g + Borax @50g + MnSO4 @ 50g+ Foliar spray (twice) of ZnSO4 (0.3%) + FeSO4 (0.5%) + CuSO4 (0.2%) + Mg SO4 (0.5%) + Borax (0.2%) + MnSO4 (0.2%) at pre-flowering and marble stage recorded the maximum individual fruit weight (592 g) and highest yield kg per tree (380) followed by the T1 + IIHR micronutrients spray (twice) with yield per tree of 336 kg/tree while the control STCR based RDF alone after harvest recorded 193 kg/tree. The leaf nutrients were analyzed after sprays of the application of T1 + Soil application of micronutrients + Foliar Spray of micronutrients (Twice) recorded the highest leaf nutrient status of Nitrogen 1.55%, Phosphorus 0.224% and Potassium 1.39% and the highest micronutrients in leaf Iron (131.80 ppm), Zinc (20.50 ppm), Copper (37.50 ppm) and Manganese (199.20 ppm) higher as above treatment while, the control recorded lower value of Iron (66.30 ppm), Zinc (9.40 ppm), Copper (31.70 ppm) and Manganese (114.20 ppm).
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