Districts with soil like Siwan

Ranked by how closely their soil tests match: the share of samples low or short in each nutrient, pH and salt.
  1. Morena, Madhya Pradesh Grows Bajra (Pearl Millet), Rapeseed & Mustard, Wheat Compare
  2. Shajapur, Madhya Pradesh Grows Soybean, Wheat, Lentil (Masoor) Compare
  3. Chikkaballapura, Karnataka Grows Maize, Ragi (Finger Millet), Groundnut Compare
  4. Dungarpur, Rajasthan Grows Wheat, Maize, Soybean Compare
  5. Nadia, West Bengal Grows Rice, Jute, Rapeseed & Mustard Compare
  6. Rajgarh, Madhya Pradesh Grows Soybean, Wheat, Coriander Compare
  7. Muzaffarpur, Bihar Grows Rice, Wheat, Maize Compare
  8. Nayagarh, Odisha Grows Rice, Moong (Green Gram), Urad (Black Gram) Compare
  9. Mysuru, Karnataka Grows Ragi (Finger Millet), Rice, Tobacco Compare
  10. Rampur, Uttar Pradesh Grows Wheat, Rice, Sugarcane Compare

Yields also depend on water, weather, seeds and farming practice, not only soil.

Source: Soil Health Card – soil nutrient analysis (Ministry of Agriculture & Farmers Welfare).