B.S.MathurAshok Kumar Jaiswal2024-06-222024-06-221983https://krishikosh.egranth.ac.in/handle/1/5810210769From the studies made in this project on soils, developed from the same parent material - Granite gneiss, under similar climatic conditions but differing in land situations and management practices, the following conclusions can be drawn in respect of the variations in their properties. A. Land situations (Upland vs Medium land): 1. Uplands have sandy loam texture under farmers practice while medium land have sandy loam to loam texture. 2. Bulk density and moisture retention at 15 bar and 1/3 bar at 15-30 cm depth are more on uplands. 3. Porosity and aggregation are less on uplands. 4. pH, w/s Al & C.E.C. are low on uplands. 5. Uplands under irrigated condition and medium land under unirrigated condition have more organic carbon. 6. Available P (Bray P₁ & P) is high but available K is less on uplands. 7. Exchangeable Ca + Mg is low but exchangeable H and exchangeable Al at pH 4.8 and 7.0 (under un irrigated condition) are high on uplands. B. Management practices (Improved cultural practice Vs farmers cultural practice): Improved cultural practices has an edge over farmers practices in the following ways: 1.More clay in surface soils on uplands while irrigated medium land soils have more clay in sub-surface soils. 2. Porosity and aggregation are high but bulk density is low. 3. 1/3 bar is less on uplands but more in medium land. Moisture retention in subsoil at 15 bar and 4. Organic carbon is high. 5. Available P (Bray P₁ & P₂) is low under irrigated and high in irrigated uplands while available.EnglishThesis