Districts with soil like Kollam

Ranked by how closely their soil tests match: the share of samples low or short in each nutrient, pH and salt.
  1. Kottayam, Kerala Grows Coconut, Rice, Tapioca (Cassava) Compare
  2. Cooch Behar, West Bengal Grows Rice, Jute, Maize Compare
  3. Malappuram, Kerala Grows Coconut, Arecanut, Rice Compare
  4. Kozhikode, Kerala Grows Coconut, Arecanut, Black Pepper Compare
  5. Darrang, Assam Grows Rice, Rapeseed & Mustard, Maize Compare
  6. Alipurduar, West Bengal Grows Rice, Maize, Potato Compare
  7. Thiruvananthapuram, Kerala Grows Coconut, Tapioca (Cassava), Banana Compare
  8. Udalguri, Assam Grows Rice, Potato, Rapeseed & Mustard Compare
  9. Lower Subansiri, Arunachal Pradesh Grows Rice, Small Millets, Ragi (Finger Millet) Compare
  10. Pathanamthitta, Kerala Grows Coconut, Tapioca (Cassava), Rice 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).