Evaluation of the effect of biofertilizer application on primary production in pennisetum grasses (purple king grass and iniap 811), at 3 harvesting ages. investigacionysaberes [Internet]. 2023 Jul. 13 [cited 2025 Jun. 4];13(2):1-12. Available from: http://revistasdigitales.utelvt.edu.ec/revista/index.php/investigacion_y_saberes/article/view/220