The correct answer is D) All of the above.
Drip irrigation is a method of irrigation that delivers water directly to the root zone of plants, either through drippers or micro-sprinklers. This method of irrigation is more efficient than traditional methods, such as flood irrigation, because it minimizes water loss due to evaporation and runoff. Drip irrigation can also help to improve soil fertility by reducing soil erosion and nutrient leaching.
Crop rotation is a system of farming in which different types of crops are grown in sequence on the same land. This practice helps to improve soil fertility by preventing the build-up of pests and diseases, and by replenishing nutrients that are depleted by one crop with those that are required by another. Crop rotation can also help to reduce soil erosion and improve water infiltration.
Mulching is a practice that involves covering the soil with a layer of organic material, such as straw, leaves, or compost. This layer of material helps to protect the soil from erosion, improve water retention, and suppress weeds. Mulching can also help to improve soil fertility by adding organic matter to the soil and providing a habitat for beneficial soil organisms.
All of these agricultural practices can help to conserve water and improve soil fertility in Telangana.