This study was carried out with the aim of evaluating the impact of the contributions of organic fertilizers (Tithonia diversifolia, Batguano) on the growth and yield of maize cultivation in monoculture and in association with cowpea. From this study, the following results were recorded: In monoculture, Bat-guano gives a yield of 4.18 T/Ha significantly higher than Tithonia diversifolia with 3.73 T/Ha in the QPM3 variety; 3.82 T/Ha against 2.43 T/Ha with the Mus1 variety. In maize-cowpea association, Bat-guano gives the yield of 3.19 T/Ha significantly higher than Tithonia diversifolia with 2.77T/Ha in the QPM3 variety, 2.89 T/Ha against 1.40 T/Ha with the variety Mus1. The study that was conducted highlights a clearly beneficial effect of the use of natural fertilizers, namely Tithonia and bat guano, on the cultivation of maize in monoculture as well as in association with cowpea. Data analysis indicates that the treatment with bat-guano was found to be the manure capable of significantly improving the vegetative and yield components of grain maize compared to tithonia. In general, both treatments had higher yields compared to the control (F0).

This article is a contribution to increasing the profitability of broiler breeders in Kasaï in general and in Mbujimayi in particular, by developing a feed that would cost less compared to imported commercial feed. And to consider the possibility of replacing conventional protein ingredients with Vigna sinensis and QPM maize in the broiler ration. It appears that after 42 days of observation, the commercial food (R0) was better in terms of average live weight, i.e. 2,168 grams, while the food based on corn QPM + Vigna sinensi comes second position with 1,940.7 grams. The trend was further confirmed with regard to the quantity of feed consumed per chicken, the weekly weight gain, the consumption index, the weekly cost of feed. However, it was found that the commercial feed is expensive (18,995.49 FC) and provides a low profit (7,702.98 FC) compared to the feed based on QPM maize + Vigna sinensi whose total cost was evaluated. To 14,340.48 FC and having procured a profit equivalent to 8,997.92 FC. The substitution of Vigna sinensis as a protein ingredient can thus become a basic ingredient in the formulation of Cobb 500 broiler feed to replace the commercial feed which is imported into Zambia and whose price on the market is increasing. For poultry farmers, QPM maize and Vigna sinensis will be a way out to solve food problems in terms of quantity and quality.