Effect of rhizobium inoculation and organic manures on growth and yield of groundnut (arachis hypogaea l.) in Malakal, Sudan
2011
Sulfab, H.A., University of Upper Nile, Malakal (Sudan). Faculty of Agriculture | Mukhtar, N.O., Agricultural Research Corporation, Wad Medani (Sudan) | Hamad, M.E., University of Gezira, Wad Medani (Sudan). Faculty of Agricutural Sciences | Adam, A.I., University of Sinnar, Sinnar (Sudan). Faculty of Agriculture
Field experiments were conducted for two rainfed seasons (2006 and 2007) and one irrigated season (2008) at the Agricultural Farm of the Upper Nile University in Malakal (Sudan). The objective of the experiments was to study the effect of each of farmyard manure, water hyacinth compost, Rhizobium seed inoculation and in dual combinations on groundnut symbiotic performance and growth and yield under both rainfed and irriration systems. The organic fertilizers were applied at the rate of 15 t ha- each. The results showed that each organic manure alone significantly increased shoot dry weight, number of nodules planrl and pod and hay yields than the control in both rainfed and irrigation systems. Rhizobium seed inoculation with either manure significantly increased plant shoot and plant root dry weights, plant nodulation, early' pod formation, absorption of plant N and plant P compared to the control. Moreover, these treatments significantly increased groundnut pod and hay yields over that of the control
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