Teneur en N, P2O5, Ca++ et K+ dans le fumier d’étable, effluents d’un digesteur méthanique et leurs effets sur la production du maïs

Hari Léonard et al

Résumé

In this paper, we analyse the impact of composted and non composted effluents on the maize production. The impact is measured in comparison to one other type of manure which is traditional stable litter. If the production from the test bed with stable litter is taken as 100%, therefore the production from the test bed with non composted effluents is to 104% and the tested with composted effluents produce 131%, while the test bed without any manure (soil reference) has an average of production of 83,4%. In the following table, we give the average of azote, P2O5, Ca++ and K+ contained in the different types of manure. Taking into account these results, we conclude that composted effluents from methanic digester are at the origin of the improved production of maize and we recommend farmers to build their methanic digester where that manure can be obtained.