<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Nitrogen accumulation in three legumes and two cereals with emphasis on estimation of N2 fixation in the legumes by the natural 15N-abundance technique"^^ . "N accumulation and natural 15N abundance in three legumes (groundnuts, cowpeas, and soybeans) and in two cereals (sorghum and maize) were investigated over two seasons in Alfisols with and without N fertilization. Using the N uptake and natural 15N abundance of non-nodulating plants as the indication of N derived from soil and fertilizer, the per cent N derived from atmospheric N2 was calculated for nodulated plants. In the first experiment, the groundnut genotype contained 85% atmosphere-derived N, but the percentage decreased with N application. Estimates of atmosphere-derived N by the N-difference and 15N-abundance techniques gave identical results. The percentages of atmosphere-derived N estimated by the two methods at different stages of groundnut growth were also similar. In the second experiment, atmosphere-derived N was estimated in plants grown with 0–200 kg ha-1 applied N. The estimated atmosphere-derived N ranged from 42% to 61% for groundnuts from 33% to 77% for cowpeas, and from 24% to 48% for soybeans, depending on the amount of N applied. Inoculation with a Brady rhizobium strain increased the percentage of atmosphere derived N in soybean plants grown without any fertilizer N. The natural 15N abundance of sorghum and maize was very close to that of the non-nodulating groundnut, suggesting that these cereals can be used as reference plants in the estimation of atmosphere-derived N by the natural 15N-abundance method."^^ . "1990-02" . . "09" . "01" . . "Springer-Verlag"^^ . . . "Biology and Fertility of Soils"^^ . . . "01782762" . . . . . . . . . . . . . . . . . . . "J H"^^ . "Williams"^^ . "J H Williams"^^ . . "B"^^ . "Srinivasa Rao"^^ . "B Srinivasa Rao"^^ . . "T"^^ . "Yoneyama"^^ . "T Yoneyama"^^ . . "P T C"^^ . "Nambiar"^^ . "P T C Nambiar"^^ . . "K K"^^ . "Lee"^^ . "K K Lee"^^ . . . . . . "Nitrogen accumulation in three legumes and two cereals with emphasis on estimation of N2 fixation in the legumes by the natural 15N-abundance technique (PDF)"^^ . . . . . "Nitrogen accumulation in three legumes and two cereals with emphasis on estimation of N2 fixation in the legumes by the natural 15N-abundance technique (Other)"^^ . . . . . . "Nitrogen accumulation in three legumes and two cereals with emphasis on estimation of N2 fixation in the legumes by the natural 15N-abundance technique (Other)"^^ . . . . . . "Nitrogen accumulation in three legumes and two cereals with emphasis on estimation of N2 fixation in the legumes by the natural 15N-abundance technique (Other)"^^ . . . . . . "Nitrogen accumulation in three legumes and two cereals with emphasis on estimation of N2 fixation in the legumes by the natural 15N-abundance technique (Other)"^^ . . . . . . "Nitrogen accumulation in three legumes and two cereals with emphasis on estimation of N2 fixation in the legumes by the natural 15N-abundance technique (Other)"^^ . . . . . "HTML Summary of #9704 \n\nNitrogen accumulation in three legumes and two cereals with emphasis on estimation of N2 fixation in the legumes by the natural 15N-abundance technique\n\n" . "text/html" . . . "Cereals"@en . . . "Legume Crops"@en . .