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对双低油菜品种“核杂7号”进行不同施肥量、施肥方法和种植密度试验。结果表明:“核杂7号”氮肥适宜施用量为225～315 kg/hm~2;当氮肥施用量225 kg/hm~2时,年后氮肥施用比例应为25%～40%;种植密度为6.0万～10.5万株/hm~2。
The experiment of different fertilization amount, fertilization method and plant density test on double low rapeseed variety “Hezuo 7” was carried out. The results showed that the suitable application rate of nitrogen for “Heza No.7” was 225-315 kg / hm ~ 2. When the nitrogen application rate was 225 kg / hm ~ 2, the proportion of nitrogen fertilizer should be 25% -40% after years. Planting density of 60,000 to 105,000 plants / hm ~ 2.