تاثیر نیتروژن، کودهای زیستی و نانو نیتروژن بر عملکرد و اجزای عملکرد سویا

In order to study the effect of different levels of nitrogen, bio-fertilizer and Nano-nitrogen on yield and yield
components of soybean, a field experiment was carried out at Darab (Fars) in summer of 2013. Experiment
was a split plot based on randomized complete block design with three replications. The main plot included
of three levels of nitrogen (0, 75 and 150 kg.ha-1 nitrogen from urea) and sub plot included of four levels of
bio-fertilizer and Nano-nitrogen (Bradyrhizobium japonicum, Nano-nitrogen, Nitroxin and control). The
results showed that maximum and minimum of biological yield was obtained from Rhizobium inoculation
and the control respectively. Also the highest yield (2174 kg ha) obtained from application of 75 kg.ha-1 N
with Nano-fertilizer application and the lowest yield (1539 kg per hectare) obtained from the application of
75 kg.ha-1 N and no Bio-fertilizer application.