Explanation: Mountain soil is a type of soil found in hilly and mountainous regions, characterized by its steep slopes and high altitude. The soil in these areas is often well-drained and rich in organic matter due to the decomposition of plant material in the cooler, moist climate. This type of soil is particularly suitable for certain crops that require specific climatic and soil conditions to thrive.
Tea and coffee are the main crops grown in mountain soil. These crops are well-suited to the cool, moist climate and well-drained, rich soil found in mountainous regions. The high altitude provides a cooler temperature, which is essential for the growth of tea and coffee plants. Additionally, the rich organic content of the soil provides the necessary nutrients for these crops to flourish.
Tea cultivation is particularly prominent in Assam, where the climate and soil conditions are ideal for growing high-quality tea. The state is known for its Assam tea, which is grown in the Brahmaputra Valley and the surrounding hills. The tea plants require a warm, humid climate and well-drained soil, which are provided by the mountainous regions of Assam.
Coffee cultivation is also common in mountainous regions, although it is not as widespread in Assam as tea. Coffee plants require similar conditions to tea, with a cool, moist climate and well-drained, rich soil. The high altitude and specific soil conditions in mountainous areas provide the ideal environment for coffee cultivation.
In contrast, crops like cotton, ragi, and millets are not typically grown in mountain soil. Cotton requires a warm climate and well-drained, fertile soil, which is more characteristic of plains and river basins rather than mountainous regions. Ragi and millets can be grown in mountainous regions, but they are not the main crops due to the specific requirements of mountain soil and climate. Paddy, or rice, is not typically grown in mountain soil because it requires a warm, humid climate and flat, fertile land with access to water for irrigation, which are not commonly found in mountainous regions.
In summary, the main crops of mountain soil in Assam are tea and coffee due to the specific climatic and soil conditions that these crops require to thrive. The cool, moist climate and well-drained, rich soil found in mountainous regions provide the ideal environment for tea and coffee cultivation, making them the primary crops in these areas.