Effectiveness of Rhizobium and VA Mycorrhiza in the introduction of Hedysarum coronarium in a new habitat

We have conducted some experiments aimed to help the introduction in new habitats of Hedysarum coronarium L., a legume of high potential for animal nutrition. A survey was first undertaken to examine whether H. coronarium is nodulated and mycorrhizal in its natural growing area. Pot experiments were then set up to assess the feasibility of field inoculation in soils (new habitats) previously studied for some of their physical, chemical and biological (microbial) characteristics. Finally, a field experiment was carried out in a selected soil.

Rhizobium and the VA mycorrhizal fungus were both successfully established in the rhizosphere of H. coronarium growing in the field. They stimulated the yield of plant material and the nutrient uptake by the plants beyond that achieved by adding a standard dose of a compound N-P-K fertilizer.