The Soil Survey of India was established in 1956 under the Ministry of Agriculture and Farmers Welfare.

The primary objective of the Soil Survey of India is to conduct soil surveys and mapping to provide information on the distribution, characteristics, and classification of soils in India.

The National Bureau of Soil Survey and Land Use Planning (NBSS&LUP) is the agency responsible for conducting soil surveys in India.

Soil surveys in India are generally conducted at a scale of 1:50,000, which means that one centimeter on the map represents 50,000 centimeters on the ground.

Auger sampling is the primary method used for soil sampling in India. It involves using a hand-operated or motorized auger to collect soil samples from different depths.

The purpose of soil profile description is to identify soil horizons, which are layers of soil that differ in their physical, chemical, and biological properties.

The Soil Taxonomy of India is the most commonly used soil classification system in India. It is based on the USDA Soil Taxonomy, but it has been modified to suit Indian conditions.

Soil survey maps are significant because they provide information that can be used for land use planning, irrigation and drainage, soil conservation practices, and crop selection and management.

Vertisols are commonly found in the black soil region of India. They are known for their high clay content, which makes them swell and shrink with changes in moisture content.

Entisols are the major soil type found in the alluvial plains of India. They are young soils that have not developed distinct horizons.

Aridisols are characteristic of the desert regions of India. They are characterized by low organic matter content and a lack of water.

Unsustainable agricultural practices, such as improper tillage methods and lack of soil conservation measures, are the primary cause of soil erosion in India.

Contour bunding is widely used in India to control soil erosion. It involves constructing small embankments along the contours of the land to slow down the flow of water and prevent soil loss.

Soil health management is important because it helps improve crop yields, reduce soil erosion, enhance soil biodiversity, and mitigate climate change.

The Soil Health Card Scheme is a government initiative that aims to promote sustainable soil management practices in India by providing farmers with soil health cards that contain information about the nutrient status of their soils.