To help me give you a better answer, please tell me:
* Where are you interested in? (e.g., a specific country, region, continent, or globally?)
* What kind of crops are you interested in? (e.g., grains, fruits, vegetables, etc.)
* What is the purpose of your question? (e.g., for a research project, for personal interest, etc.)
Once I have more information, I can provide a more relevant and useful answer.