Due to drought and low soil fertility, Moroccan farmers have a limited choice of crops. In this context, quinoa (Chenopodium quinoa) shows promise for these conditions. Organic fertilizers show significant potential for improving agricultural production. bThe present work investigates the effect of biofertilizing quinoa using a biofertilizer derived from the anaerobic co-digestion of olive mill wastewater (OMW), fish waste (FW) and fruit and vegetable residues (FVW). For this purpose, an experiment was conducted in a greenhouse at the experimental station of the Faculty of Science at Mohammed first University. The experimental treatments included four (4) digestates with a mixture of equal proportions (33% each) of olive wastewater, waste, and cattle dung as inoculum. These mixtures were digested through methanization using two inoculum/substrate (I/S) ratios of 2:1 and 3:1. The results obtained show that the application of digestate has a positive effect on the growth and development of quinoa. However, the combined treatments, namely T5, T6, and T8, which include both digestate and organic fertilizers, have shown a more significant effect on most morphological and physiological parameters, as well as agronomic parameters, specifically yield.

Quinoa, Digestate, Fertilizer, OMW, FW, FVW, Growth, Yield