Spatial Variability in Physico-Chemical Properties of Soils in Permanent Bench Mark Sites of Jabalpur in AESR-10.1 under Rice-wheat Cropping System

Abstract

The study aimed to found the spatial and vertical variability in physico-chemical properties of soils for regulating the nutrient availability under Rice-Wheat cropping system in permanent bench mark sites (PBMS) of Jabalpur in AESR-10.1 region. Rice wheat cropping system is dominant cropping system in AESR-10.1 Jabalpur region in Madhya Pradesh, India.  pH, electrical conductivity (EC), cation exchange capacity (CEC), organic carbon (OC) and calcium carbonate (CaCO3) have an justify role in the nutrient availability. pH affects nutrient availability by changing the nutrient form. Split plot design used to evaluate the vertical and spatial effect on site of Jabalpur district. Collected 45 soil samples to examine the physico-chemical properties and results were interpreted. Three locations treated as main plot and five depths used as sub treatment for analysis the soils. pH, and EC vary with sites and depth but statistically not significant. Magarmuha soils has lowest OC and CEC values while soils of Khamaria showed significantly higher values of OC and CEC  than Udna and  Magarmuha. Soils of Udna were rich in CaCO3 it was significantly higher than other sites. Across the depth it increases gradually. OC and CaCO3 showed interaction effect of sites and depths. Nutrient availability governed by physico-chemical properties of soils. Rice wheat cropping system is dominant cropping system in AESR-10.1 Jabalpur region in Madhya Pradesh, India. Management of Soils in these areas were necessary for full potentially use of nutrient balance of these PBMS sites.