Effect of nitrogen sources added to the soil and effect of Rhizobium japonicum inoculation on yield, protein and oil content of two soybean varieties

A greenhouse experiment was carried out to investigate the effect of Rhizobium inoculation and different sources of nitrogen (ammonium nitrate, ammonium sulphate, and urea) on yield, protein, and oil content of the two soybean varieties IAC 70-25 and Mineira. Inoculation increased seed yield and percent protein to the same extent as did nitrogen treatments, and decreased percent of oil in the variety Mineira. Inoculation had no effect on the variety IAC 70-25, although it increased the number of pod loci without increasing the number of seed in both soybean varieties. The different nitrogen sources increased yield, protein content, and decreased oil content in the variety Mineira. Neither the percent of oil nor the percent protein in the variety IAC 70-25 was influenced by nitrogen source. The variety Mineira may have potential for increased seed production, since it responded positively to inoculation and nitrogen treatments.

Bibliographic Details

Main Authors:	Ruschel, Aláides Puppin, Suhet, Allert Rosa, Vianni, Romeu, Almeida, Dejair Lopes de
Format:	Digital revista
Language:	por
Published:	Pesquisa Agropecuaria Brasileira 2014
Online Access:	https://seer.sct.embrapa.br/index.php/pab/article/view/17100
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