Crop Yields Are Stagnating

Crop yields are stagnating while the population is still growing. This means that we need either better technology, more farmland or people will need to eat less. If not, then food prices will continue to rise.

Optimal Fertilizer Yield

There is an optimal fertilizer yield that will generate the highest crop produce. If fertilizer prices rise at constant food prices, farmers will use less fertilizer and therefore the crop yield will decline.