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Nitrogen rate and plant
population effects on yield and yield components in soybean
Mehmet OZ
Uludag
University, Mustafakemalpasa Vocational School, M.K.Pasa/Bursa/Turkey.
E-mail:
momer@uludag.edu.tr.
Accepted
14 November, 2008 |
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This
research was carried out to determine the effect of plant
population and nitrogen rates on yield and yield components
in soybean under Bursa, Mustafakemalpaşa ecological
conditions. Trials were conducted during 2000 and 2001 at
the experimental fields of the Mustafakemalpaşa Vocational
High School, University of Uludag. Soybean cultivar A-3935
was tested at four plant densities (70 × 5, 70 × 10, 70 × 15
and 70 × 20 cm) and four different nitrogen doses (0, 30, 60
and 90 kg ha-1). Plant height, lowest pod height,
number of branches per plant, pod number per plant, yield
per plant, harvest index, 100 seed weight and seed yield
were researched in this experiment. It was observed that
increase in plant density and nitrogen rate increased plant
height, lowest pod height, harvest index and seed yield.
Otherwise, the number of branches per plant, pod number per
plant, yield per plant and 100 seed weight decreased as
plant density and nitrogen rate increased.
Key
words:
Soybean, plant density, nitrogen doses, yield and yield
components. |
