अम्लीय मिट्टी में चूना (Lime) या डोलोमाइट मुख्य रूप से किन पोषक तत्वों की आपूर्ति करने और pH को समायोजित करने के लिए मिलाया जाता है?

Which of the following factors are responsible for soil degradation in dryland areas? (a) Lack of precipitation (b) Low clay content in soil (c) High soil organic matter content in soil (d) High soil erosion

What is the primary agricultural benefit of including leguminous crops, such as pulses, in a crop rotation system?