Response of zinc in transplanted rice under integrated nutrient management in New Alluvial Zone of West Bengal

Field experiments were conducted during wet seasons of 2004 and 2005 to study the effect of Zn in combination with FYM and/or recommended dose (RD) of NPK on transplanted rice. Application of 10 kg Zn (5.0 + 2.5 + 2.5 kg ha⁻¹) in three splits in combination with RD of NPK (60:13:25 kg ha⁻¹) recorded significantly higher growth, yield attributes, grain (42.5 t ha⁻¹) and straw (46.6 t ha⁻¹) yield and showed additional net return of Rs 1,967 ha⁻¹. However, the benefit: cost ratio was highest (1.72) for the treatment RD of NPK in combination with Zn (2.5 + 2.5 kg ha⁻¹) in two equal splits.