DEPTH-WISE DELINEATION OF DEFICIENCY AND SUFFICIENCY AREA OF MICRONUTRIENT USING GPS-GIS TECHNOLOGY AND THEIR CORRELATION WITH SOIL PROPERTIES OF DAUSA TAHSIL OF RAJASTHAN, INDIA

Abstract

The present investigation was carried out in Dausa tehsil of Dausa district of Rajasthan during the year 2021 and 2022 to delineate the surface and sub-surface area of deficiency and sufficiency for micronutrient and their corelation with soil properties. A total 242 soil samples at surface (0-15) and sub-surface (15-30 cm) layers from Dausa tehsil were collected using Global Positioning System (GPS). Soils were deficient in Zn, Cu, Fe, and B but sufficient in Mn. The soils were sufficient in Cu (85.95, 73.55 %), Fe (52.07, 24.79 %), Mn (100 %) and   B (63.64, 43.80 %), however, deficient (69.42, 90.91 %) in Zn and available S (89.28,95.05 %) content in Dausa tehsil under surface and sub-surface layers respectively. The availability of micronutrient (Fe, Cu, Mn, Zn and B) has positive correlation with OC, EC, CEC silt and clay content of soils, whereas, significant negative correlation with pH, CaCO3, ESP and sand.