Effet de l’inoculation et de la fertilisation sur la nodulation et le rendement de trois variétés de haricot à Cabaret

Abstract

Bean’s nodulation capacity relies on the presence of specific Rhizobium bacteria and the soils’ fertility in particular the phosphorus availability. Techniques such as: inoculation and fertilization have been invented my man to improve the nodulation and yield of legumes. In order to assess the potential of these two practices on the common bean (Phaseolus vulgaris), a study was conducted at Prince, a communal section located in the Cabaret Township during the spring season (December-March) 2016. The main objective of this study was to help improve the nodulation and yield of three bean varieties (AIFI, DPC-40, and X-RAV-4-40) by inoculation and fertilization. The experiment was carried out in a complete randomized design containing 18 treatments and 4 replications. First, we had the varietal factor that contained three levels (AIFI, DPC-40, X-RAV), followed by inoculation with two levels (Inoculated and non-Inoculated) and fertilization (Complete and phosphate fertilizer, control). The results obtained from the ANOVA did not evaluate the effect of inoculation and fertilization on nodulation and yield of the common bean. The three varieties tested, which are among the most widely varieties distributed in Haiti by the National Seed Service (SNS), have not been nodulated under the experimental conditions. On the other hand, the results obtained for the grain yield (p = 0.02) showed that the varieties of the study gave a more favorable response to the intake of the complete fertilizer. The results showed that the complete fertilizer application, phosphate fertilizer and control produced an average of 0.89 t / ha, 0.79 t / ha, 0.63 t / ha respectively in ascending order (NKP> SPT> Control). Based on the results obtained, it is necessary to repeat this test while including improved local varieties that can be nodulated in soils with an alkaline pH.