What are the aspects should be undertaken during sampling?
A. Variation in slope, colour, texture, crop growth, management should be taken in to account during sample collection. Local problem soils like areas underlying by hard pan, saline areas , alkaline areas, strongly acid soils, calcareous soils are treated as separate units and the soil sample can be collected separately. 6. What are the tools used for soil sampling A. 1. Soil tube 2. Screw type auger 3. Post – hole auger 4. Spade 5.