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Face a un appauvrissement des sols et une irregularite des pluies du fait du changement climatique, une etude a ete entreprise sur la culture du mais au Centre-Nord de la Cote d’Ivoire. Elle avait pour objectif d’evaluer l’influence de quatre types de fumures sur le potentiel agronomique de deux genotypes de mais (Zea mays L.) en cas de contrainte hydrique de fin de cycle et d’infertilite des sols. Le dispositif experimental a ete un split-plot, dont le premier facteur a ete les fertilisants et le second, la variete. Les resultats ont montre que les fumures ont influence les durees des phases vegetative et reproductive en plus du rendement. Les fumures fiente de poulet et dejection de boeuf ont permis d’obtenir un rendement qui est egal a six fois celui obtenu avec le temoin de la variete a grain noir malgre la contrainte hydrique. Aussi, la fumure fiente de poulet a eu une tendance a reduire le cycle de culture et favoriser une meilleure croissance et un bon developpement des plantes. L’utilisation de ces fumures en culture du mais, pourrait constituer une alternative aux consequences drastiques du changement climatique. © 2020 International Formulae Group. All rights reserved. Mots cles: Fertilisants, mais (Zea mays L.), potentiel agronomique, rendement, contrainte hydrique English Title: Effect of four types of fertilizers on the growth and productivity of two maize genotypes (Zea mays L.) in the event of late planting in Korhogo in North-Central Cote d'Ivoire English Abstract Faced with soil depletion and irregular rains due to climate change, a study was undertaken on maize cultivation in North-Central Cote d'Ivoire. Its objective was to assess the influence of four types of manure on the agronomic potential of two maize genotypes (Zea mays L.) in cases of water stress and soil infertility. The experimental set-up was a split-plot, the first five-level factor being fertilizers and the second two-level factor being variety. Observations were made on phenology, growth parameters and yield. The results showed that manure influenced vegetative and reproductive time, growth parameters and yield. In terms of yield, chicken droppings and beef droppings were the most effective. They yielded six times the yield obtained with the black-grain variety control despite the water constraint at the end of the cycle. Also, chicken manure has had a tendency to reduce the growing cycle and promote better growth and plant development. The use of these manure in maize cultivation could be an alternative to the drastic consequences of climate change. © 2020 International Formulae Group. All rights reserved. Keywords: Fertilizers, corn (Zea mays L.), agronomic potential, yield, water constraint

international journal of biological and chemical sciences

Effet de quatre types de fertilisants sur la croissance et la productivité de deux génotypes de maïs (&lt;i&gt;Zea mays&lt;/i&gt; L.) en cas d’un semis tardif à Korhogo au Centre-Nord de la Côte d’Ivoire