New Zealand Journal of Crop and Horticultural Science
abstracts
Rhizobium inoculation improves yield and nitrogen accumulation in soybean (Glycine
max) cultivars better than fertiliser
Tahsin Sogut
Field Crops Department
Faculty of Agriculture
Dicle University
21280 Diyarbakir
Turkey
email: tsogut@dicle.edu.tr
Abstract This study was conducted to assess the effect of Rhizobium inoculation
and nitrogen (N) fertiliser on N accumulation and yield in soybean (Glycine
max). Six soybean cultivars belonging to maturity group (MG) II (‘Corsoy
79’, ‘Dwight’), III (‘Williams 79’, ‘Maverick’),
and IV (‘Cf 492’, ‘Pyramide’) were grown following wheat
in a double crop system in a clay soil, free of Bradyrhizobium japonicum,in
2002 and 2003. A split plot design with inoculation or no inoculation (N fertiliser
application) as main plots and cultivars as subplot treatments was used, with
three replications in both years. The results of these experiments indicated
that inoculation increased N content and dry matter in seed and vegetative parts
(stem and leaves), N harvest index, and seed yield. The interaction between inoculation
and soybean cultivars (maturity group) showed that inoculation was more effective
on late maturity cultivars for seed yield.
Keywords soybean; maturity group; Rhizobium inoculation; nitrogen
fertiliser; nitrogen accumulation
New Zealand Journal of Crop and Horticultural Science, 2006, Vol. 34:
115–120
0014–0671/06/3402–0115 © The Royal
Society of New Zealand 2006
H05067; Online publication date 12 April 2006. Received 15 June 2005;
accepted 2 February 2006
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