That's a very good question.
We have to meet the crop demand, and that is a very difficult process to enact. Research has been ongoing in this area for many decades, and we are still pushing forward to be able to match the crop demand with the supply from both the fertilizer and the soil.
We definitely want to maintain yields, especially with the new varieties that have high yield potential. We are updating the fertilizer recommendations, as time goes by, for new varieties.
As we all know, climate change is having some impact. Whether it's drought or excess moisture, that can also have a major impact. Even if we have the right amount of fertilizer applied, unless we have the right conditions, we will not get the optimum yield that we targeted.