Evaluation of Different doses and Modes of Application of Ferrous Ammonium Sulfate for Maximizing Rice Production

The field experiment on rice was carried out during the Kharif season 2021 at Agricultural Engineering Research Farm, JNKVV, Jabalpur (M.P.) to evaluate the effect of ferrous ammonium sulfate (FASt) on rice production. Eight treatments were applied, namely RDF- Recommended dose of fertilizer (N:P:K) (120:60:40), RDF + FASt at 15 kg/ha for soil application, RDF + FASt at 25 kg/ha for soil application, RDF + FASt at 35 kg/ha for soil application, RDF + 2 Spray of FASt 0.25% at 25 and 45 DAT, RDF + 2 Spray of FASt 0.50% at 25 and 45 DAT, RDF + 1 Spray of FASt 0.25% at 25 DAT, RDF + 1 Spray of FASt 0.50% at 25 DAT. The studies revealed that applying FASt to transplanted rice significantly increased grain yield over the control. All the growth parameters and yield attributes were found highest in the treatment soil application of ferrous ammonium sulfate (FASt) at 35 kg/ha with a recommended dose of fertilizer (RDF) and more effective comparatively foliar application of FASt at 0.25% and 0.50%. It recorded a maximum grain yield (5188 kg/ha) with a higher harvest index (38.85).