An experiment was conducted to evaluate the effect of NPK on canola (cv. Dunkeld). Sole dose of N proved superior to split dose and produced significantly taller plants. Nitrogen application methods had no influence on grain yield and oil contents. Grain yield increased with increase in P level. Oil contents significantly increased by P up to 50 kg ha-1, but further increase in P decreased the oil contents. Potassium showed no influence on any observation other than oil contents. A combination of 100 kg N, 75 kg P and 30 kg K ha-1 seems to be the optimum dose in terms of higher canola grain production. While highest oil contents can be obtained with 100 kg N, 50 kg P and 60 kg K ha-1.
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机译：进行了一项实验，以评估NPK对低芥酸菜子（cv。Dunkeld）的影响。事实证明，单独施用N的剂量要优于分次施用的剂量，并且可以产生更高的植株。施氮方法对谷物的产量和含油量没有影响。磷产量随P水平的提高而增加。高达50 kg ha -1 时，含磷量显着增加，但P的进一步增加降低了含油量。钾除了含油量外，对其他任何观察结果均无影响。就高双低油菜籽产量而言，结合100 kg N，75 kg P和30 kg K ha -1 似乎是最佳剂量。分别以100 kg N，50 kg P和60 kg K ha -1 可获得最高的含油量。
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