Influence of inoculation on crop yield and content of nitrogen in grain of Vigna radiata (L. Wilezek) and Vigna mungo (L. Hepper)
2003
Kuzmanovic, Dj. | Milicic, B. | Rasulic, N. (Institute of Soil Science, Belgrade (Serbia and Montenegro))
Vigna radiata (green gram) and Vigna mungo (black gram) represent important leguminose in population nutrition in tropic and subtropic areas. They are characterized by a relative high content of crude protein (22-28%), carbon hydrate (50%) and low content of fat (1.5%). The mentioned properties of these leguminoses showed that they need to be introduced in agricultural production for population nutrition in Serbia&Montenegro. The aim of this investigations was to examine the possibilities of their successful cultivation in our country by application of inoculum i.e. their specific rhizobia Bradyrhizobium spp. Taking this aim into consideration, a field microexperiment was set up with green and black gram on chernozem with the following treatments: control, control by nitrogen, agrostemine and 4 strains Bradyrhizobium spp. (2001, 2801, 5388 and 12758) obtained from Brasil and New Zealand on the exchange basis. The results of our investigation indicated clearly the possibility (raised) that they would breed successfully in our production areas by application of seed inoculation. Thus, applying strain 2801 as inoculum, grain yield of Vigna radiata has increased by 44%, i.e. of Vigna mungo by 40% in relation to a control. Similarly, the content of total nitrogen in grain has increased incredibly in relation to a control, whereas the percentage of fixed nitrogen with its total content was over 51%. With other applied strains as inoculum, grain yield as well as content of nitrogen in grain was lower in relation to the strain 2801.
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