Dembele, Djeneba, Mamadou Ballo, Abdou Ballo, and Bocar dit Sire Ba. “Impact of Fertilizer Usage on Crop Productivity at Siguidolo”. International Journal of Environment, Agriculture and Biotechnology 4, no. 5 (October 10, 2019). Accessed July 3, 2024. https://journal-repository.com/index.php/ijeab/article/view/1147.