Effect of zinc management practices on growth yield and economics in transplanted rice (Oryza sativa L)

A field experiment was conducted during wet season 1998 at Agricultural College Farm, Bapatla on a clay loam soil to find out a better zinc practices for transplanted rice using the test variety MTU2067. The results revealed that soil application of 50 kg ZnSO4 ha-1 followed by foliar spray of Zn-EDTA (equivalent to 0.2% ZnSO4) and seedling root dip with ZnO (equivalent to 10 kg ZnSO4 ha-1) significantly increased the growth characters, yield attributes, grain and straw yield. Soil application of ZnSO4@ 50 kg ha-1 recorded 25 per cent increase in grain yield over control. Though highest Benefit Cost Ratio (BCR) 1.30 was recorded by seedling root dip with ZnO (equivalent to 10 kg ZnSO4 ha-1), soil application of 50 kg ZnSO4 ha-1 was found o be the best which recorded the highest net monetary returns (Rs.12,340 ha-1) with BCR of 1.25.