Corn Vs. Soybeans

Due to high ammonia prices, farmers are shifting from corn to soybeans. This is to use less of nitrogen. However, they both still need potash! Conclusion: when natural gas rises, ammonia rises and potash will rise.

Corn uses an N-P-K ratio of 120-80-80.

Soybeans use an N-P-K ratio of 0-70-100. No nitrogen is needed because they get the nitrogen from fixating bacteria into nodules that produce plant available nitrogen.

This is the reason why natural gas and ammonia rises first and then potash follows.