AN ASSESSMENT OF THE SOIL FERTILIZATION STATUS OF IB-INW ZONE OF RAJASTHAN

摘要

All soil samples were separately monitored for physical and chemical variables like pH, electrical conductivity (E.C.), nutrient concentration of nitrogen (N), potassium (K), phosphorous (P), organic carbon (O.C.), organic matter (O.M.), iron (Fe), manganese (Mn), zinc (Zn), copper (Cu), classification exchange capacity (CEC), texture, CaCO3, D.I.D., water holding capacity and topography slope. Some strong DI values were calculated in soil physical and chemical parameters between reference site (TFS) and other (TPS and COS) sites. In COS, highest increasing and decreasing DI value for sand and silt content were found-53.67% and +71.42%, respectively. Overall in the IB-INW zone, deficiency of organic carbon and nitrogen nutrient were more pronounced. Soil potassium concentration was found medium to high range in studying zone. On the other hand, sufficient availability of copper and manganese micro-nutrient concentration were measured. The data revealed that TFS sites fertilization status was high while TPS and COS were moderate and low fertilization status, respectively. This study will help them to understand the present challenges of soil and problem of soil fertility degradation in Rajasthan.