Residual fertilizer fails to boost crop yield, questions sustainability of chemical use.
Crop rotation may not be effective in combating soil fertility loss caused by residual fertilizer. A study in Benin found no significant link between past fertilizer use, soil nutrient levels, and crop rotation patterns. This challenges the idea that leftover fertilizer boosts crop yield. The research suggests that chemical fertilizers may not be the best solution for sustainable farming. Instead, promoting more eco-friendly practices could help restore soil health and improve crop production in the region.