RESEARCH ON THE EVOLUTION OF THE NUMBER OF NODOSITIES DEVELOPED IN SOY UNDER THE EFFECT OF INOCULATION AND OF FERTILISATION WITH NITROGEN ON TWO SOIL TYPES PUBLISHEDPaul Pîrşan, Gheorghe David, Florin Imbrea, Lucian Botoş
During the trial cycle 2003-2005, we studied the effect of inoculation or of fertilization with nitrogen (N 0 , N 30 , and N 60 ) on the number of nodosities developed by soy on two types of soil: cambic chernozem and brown luvic. On both soil types in the variants inoculated, the number of nodosities was significantly larger than in the control variants. The nitrogen dose N 30 applied before sowing resulted in an increase of the number of nodosities on the brown luvic soil; on the cambic chernozem there were no significant differences compared to the control (N0). The N60 dose resulted in the development of a significantly smaller number of nodosities on both soil types.
soy; nitrogen dose; number of nodosities; and soil type