To gain practical skills for sustainability management, join us at the COMMIT! Forum in DC October 11-12 2017 By Gina-Marie Cheeseman There are over seven billion people in the world and every one of them needs to eat to live. Feeding a growing world population means that crop yields have to be improved. Fertilizers are important to improve crop yields in order to feed a growing global population. As the world population grows, the demand for food will continue to grow while the amount of cultivated land will not significantly increase, making methods to improve crop production important. American farmers are the most productive in the world, according to the U.S. Geological Survey (USGS). The U.S. is a big producer of fertilizers for both domestic use and to be exported. The USGS maintains that applying mineral fertilizers in “increased quantities...is one of the easiest and quickest ways to improve soil fertility.