Effect of iron and zinc enriched organics on available nutrient status of soil after harvest of potato in loamy sand

Abstract

A field experiment was conducted at the Agronomy Instructional Farm, Department of Agronomy, Chimanbhai Patel College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar to study the effect of Fe and Zn enriched organics on growth, yield attributes and yield of potato in loamy sand (Typic Ustipsamments) during the Rabi seasons of 2016-17 and 2017-18. The results revealed that an application of 5 t vermicompost ha-1 recorded significantly higher available P2O5 content, DTPA-Fe and DTPA-Zn as compared to 20 t FYM ha-1. The organic carbon and available nitrogen content were recorded higher with 20 t FYM ha-1. An application of organics 2 t ha-1 enriched with 6 kg Fe and 4 kg Zn (N5) recorded significantly higher organic carbon, available nitrogen, available P2O5, available K2O, DTPA-Fe and DTPA-Zn concentration compared to no application of Fe and Zn.