One of the following pulses which does not help in restoring soil fertility.

Arhar is correct answer.

Key Points

• Crop rotation is the technique of growing a variety of crops in the same place throughout the year. 
• The rationale for this is because it lowers soil depletion of one set of nutrients required by a specific crop. 
• Thus, planting a variety of crops helps to maintain the land fruitful.
• Farmers frequently cycle other crops with leguminous plants to benefit the soil. 
• Special microorganisms found in the root nodules of legumes assist to fix nitrogen in the soil, making it more fertile. 
• Except for the Tur (arhar) dal, most pulses are such plants. So, whereas pulses are planted in rotation, Tur dal is not since it depletes soil fertility.

 Additional Information

• Tur (arhar), masur, moong, urad, moong, gram, and peas are the most important pulses farmed in India.
• Pulses require less moisture and may survive in dry environments.
• Rajasthan, Maharashtra, Madhya Pradesh, Uttar Pradesh, and Karnataka are important pulse producing states in India.
• Pulses are the edible seeds of legume-family plants. Pulses occur in a variety of shapes, sizes, and colors and grow in pods. 
• The FAO classifies pulses into 11 categories: dry beans, dry broad beans, dry peas, chickpeas, cow peas, pigeon peas, lentils, Bambara beans, vetches, lupins, and pulses nes (not otherwise specified - minor pulses that do not fall into one of the other categories).