Effects of nitrogen, phosphorus, and interaction of these nutrients on grain yield of canola variety (Brassica napus L.), hyola 308 was studied under rainfed conditions ( mean annual rainfall of 450 mm) in a calcareous soil (Fine loamy, Carbonatic, Hyperthermic, Typic Calciusteps). The experiment was carried out in a factorial CRB design with three replications for two years (2003-2005). The content of organic matter, available phosphorus and potassium in soil was 0.78%, 10 and 252 mg.kg-1, respectively. Treatments included four rates of nitrogen (0, 30, 60 and 90 Kg N ha-1) and three rates of P (0, 45 and 90 Kg P2O5 ha-1). The results showed that the effects of N, P and N*P interaction was significant on grain yield at α=1%. It can be concluded that application of N, P increase grain yield. N and P application increased significant thousands kernel weight (TKW). According to the results of this experiment, application of 90 Kg N ha-1 and 45 Kg P2O5 ha-1 for similar conditions is recommendable.
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chakeralhosseini, M. R. (2009). Study on the Effects of N and P on Grain Yield of Rapeseed in Semi-Tropical Rainfed Condition. Iranian Journal of Soil Research, 22(2), 147-154. doi: 10.22092/ijsr.2009.126994
MLA
Mohammad reza chakeralhosseini. "Study on the Effects of N and P on Grain Yield of Rapeseed in Semi-Tropical Rainfed Condition". Iranian Journal of Soil Research, 22, 2, 2009, 147-154. doi: 10.22092/ijsr.2009.126994
HARVARD
chakeralhosseini, M. R. (2009). 'Study on the Effects of N and P on Grain Yield of Rapeseed in Semi-Tropical Rainfed Condition', Iranian Journal of Soil Research, 22(2), pp. 147-154. doi: 10.22092/ijsr.2009.126994
VANCOUVER
chakeralhosseini, M. R. Study on the Effects of N and P on Grain Yield of Rapeseed in Semi-Tropical Rainfed Condition. Iranian Journal of Soil Research, 2009; 22(2): 147-154. doi: 10.22092/ijsr.2009.126994
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