Effect of zinc sulphate and ferrous sulphate on soil nutrient status of guava orchard CV. Hisar Safeda under high density planting

The investigation was carried out at Research Orchard of Department of Horticulture, CCS Haryana Agricultural University, Hisar. The application of ZnSO4 and FeSO4 was made to randomly selected uniform plants during mid of February and August. Nitrogen, phosphorus and potassium content was reduced in the soil by both zinc sulphate and ferrous sulphate applications. The soil samples receiving 30 g ferrous sulphate resulted in maximum iron content, which was closely followed by 20 g ferrous sulphate application per plant. Application of 90 g zinc sulphate resulted in maximum zinc content in soil, which was at par with 60 g zinc sulphate. Values for electrical conductivity, pH and organic carbon content did not vary significantly after application of zinc sulphate and ferrous sulphate.