DOI: 10.36347/sjavs.2018.v05i08.005

Pages: 447-457

Abstract: Phosphorus and sulphur are one of the most yield limiting nutrients in southeastern part of Ethiopia. Its application is very crucial to increase the productivity of the crop. The experiment was conducted at two locations; Sinana on-farm and Agarfa research sub-site, in the highlands of Bale, Southeast Ethiopia, during the 2012 main cropping season with the objectives of investigating the effect of different rates of P and S fertilizers on some flowering stage growth parameters of faba bean. The treatments consisted of five P rates (0, 23, 46, 69 and 92 kg P2O5 ha-1) and three S rates (0, 30 and 60 kg S ha-1). The experiment was laid out in a factorial arrangement of RCBD with three replications. Results indicate that plant height and dry matter production were significantly influenced by P at both locations while S influenced only plant height at Sinana. The interaction effect of P and S influenced plant height and dry matter production only at Sinana. Number of leaf per plant, mean leaf area and leaf area index had significantly influenced by both nutrients and their interaction except no main effect of S on leaf area index at Sinana and mean leaf area at Agarfa. Number of branch per plant and height of first flower bearing node did not affected by the two nutrients. The result of this study showed that to obtain the optimal growth parameters in faba bean at flowering stage under highland condition P and S level at 92 and 30 kg ha-1 at Sinana and 92 and 0 kg ha-1 at Agarfa can be advised for most parameters respectively.