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Not AvailableEXECUTIVE SUMMARY The land resource inventory of Hullur-2 microwatershed was conducted using village cadastral maps and IRS satellite imagery on 1:7920 scale. The false colour composites of IRS imagery were interpreted for physiography and these physiographic delineations were used as base for mapping soils. The soils were studied in several transects and a soil map was prepared with phases of soil series as mapping units. Random checks were made all over the area outside the transects to confirm and validate the soil map unit boundries. The soil map shows the geographic distribution and extent, characterstics, classification and use potentials of the soils in the microwartershed. The present study covers an area of 448 ha in Shirahatti taluk of Gadag district, Karnataka. The climate is semiarid and categorized as drought-prone with an average annual rainfall of 633 mm, of which about 363 mm is received during south –west monsoon, 165 mm during north-east and the remaining 105 mm during the rest of the year. An area of about 96 per cent is covered by soils, four per cent by waterbodies, settlements and others. The salient findings from the land resource inventory are summarized briefly below. The soils belong to 11 soil series and 15 soil phases (management units) and 8 land use classes. The length of crop growing period is about 150 days starting from the 3rd week of June to 1st week of October. From the master soil map, several interpretative and thematic maps like land capability, soil depth, surface soil texture, soil gravelliness, available water capacity, soil slope and soil erosion were generated. Soil fertility status maps for macro and micronutrients were generated based on the surface soil samples collected at every 250 m grid interval. Land suitability for growing major agricultural and horticultural crops were assessed and maps showing the degree of suitability along with constraints were generated. About 96 per cent area is suitable for agriculture and 4% is not suitable for agriculture. About 13 per cent of the soils are shallow (25-50 cm) to moderately shallow (50-75 cm) and about 83 per cent are moderately deep (75-100 cm) to very deep (>150 cm) soils. About 93 per cent of the area has clayey soils at the surface and 3 per cent of the area has loamy soils. About 32 per cent of the area has non-gravelly soils, 56 per cent gravelly soils (15-35 % gravel) and 2 per cent very gravelly (35- 60% gravel) soils. About 22 per cent medium (101-150 mm/m), 62% is very high (>200mm/m) and 11 per cent low (51-100 mm/m) to very low (<50mm/m) in available water capacity. Entire area in the microwatershed has very gently sloping (1-3%) lands. An area of about 79 per cent has soils that are moderately eroded (e2) and 17 per cent slightly eroded (e1). An area of about 9 per cent has soils that are moderately alkaline (pH 7.8 to 8.4), 76 per cent strongly alkaline (pH 8.4 to 9.0) and 18 per cent very strongly alkaline (pH>9.0). About 95 per centhas soils are non saline ( <2 dsm-1) and <1 per cent low (2-4 dsm- 1) in electrical conductivity (EC) of the soils. About 25 per cent of the soils are medium (0.5-0.75%) in organic carbon and low (<0.5%) in about 71 per cent. Entire micro watershed area is low (<23 kg/ha) in available phosphorus. About 21 per cent medium (145-337 kg/ha) and 75 per cent high (>337 kg/ha) in available potassium. Available sulphur is high (>20 ppm) in about 30 per cent, medium (10-20 ppm) in about 46 per cent area and about 20 per cent area is low (<10 ppm). Available boron is low (0.5 ppm) in about 66 per cent, medium (0.5-1.0 ppm) in 28 per cent and high (>1.0 ppm) in 2 per cent area. Available iron is deficient in about 92 per cent area and sufficient in 4 per cent area. Available zinc is deficient in about 95 per cent area and sufficient in