Influence Des Différentes Doses D’engrais Minéraux Et Des Fréquences D’arrosage Sur Le Rendement Du Haricot Commun (Phaseolusvulgaris L.)

This present work was undertaken to evaluate the effects of mineral manure and watering on the production of common bean (Phaseolus vulgaris L.) with a view to increase the yield of common bean in Kongo Central Province. The test was installed according to a device in Split-Split stud including 3 replications. The principal plots consisted of 4 varieties (HM21-7, ZKA98-6M/95, MANSEKI and TUTA); the sub-plots of 4 frequencies of watering (Without watering = F0, Watering from sowing to flowering = F1, Watering of flowering at the beginning of maturation = F2 and Watering from sowing to the beginning of maturation = F3 and the sub-sub plots of 4 amounts of artificial fertilizer (D0 = pilot not fertilized;D1 = 30N-30P2O5-30K2O; D2 = 60N-60P2O5-60K2O; D3 = 90N-30P2O5-30K2O).The observations related to the parameters of yield. The results obtained showed that the D2 amount associated with watering from sowing to the maturation beginning gave a yield of 1230 kg ha -1 against 609 kg ha -1 for the check without manure and watering, either an increase of 102 %. However, with the same D2 amount without watering the yield was 735 kg ha a -1 or an increase of 20.7 % compared to the check D0 (609 kg ha -1). In addition, whatever the amount of manure, any contribution of manure under the soil conditions where the content of residual moisture is 20 % does not have any significant effect on the yield without irrigation.