Effect of <i>Bradyrhizobium</i>, VA mycorrhiza and fertilisers on seed composition of groundnut

Abstract

Summary A field experiment was carried out to investigate the effect of Bradyrhizobium and mycorrhizal ( Glomus sp.) inoculation compared to adding urea and super phosphate on proximate composition, in vitro protein digestibility (IVPD) and tannin content of groundnut. The results showed that mycorrhizal inoculation and/or superphosphate significantly ( P ≤ 0.05) increased both oil and protein content of groundnut seeds. Bradyrhizobium and/or nitrogen fertiliser significantly ( P ≤ 0.05) increased protein content and significantly decreased the oil content. Bradyrhizobium and/or mycorrhizal inoculation significantly ( P ≤ 0.05) increased the ash, crude fibre, IVPD and tannin content. Biological and chemical fertilisers significantly ( P ≤ 0.05) increased IVPD. Superphosphate fertilisers significantly ( P ≤ 0.05) increased the tannin content. The moisture content was not affected by any treatment.