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绩溪县位于安徽省东南部,属冬油菜种植区,油菜常年种植面积在7万亩左右,油菜籽常年平均亩产量在150 kg左右。肥料利用率和每生产100 kg经济产量吸收的养分量是确定作物施肥量的重要参数,为获取油菜氮磷钾肥料利用率和每生产100 kg油菜籽吸收的养分量等参数,2015年在绩溪县金沙镇组织了油菜氮磷钾肥料利用率对比试验,旨在建立油菜施肥指标体系,指导油菜精准施肥。1材料与方法
Jixi County is located in the southeast of Anhui Province, is a winter rapeseed planting area, rapeseed perennial planting area of about 70,000 acres, rapeseed perennial average yield of 150 kg or so. Fertilizer utilization rate and the amount of nutrients absorbed per 100 kg of economic output are important parameters for determining the amount of fertilizers applied to crops. In order to obtain the parameters of N, P and K fertilizer use efficiency and the amount of nutrients absorbed per 100 kg of rapeseed, Jinsha Town, County organized a rape nitrogen, phosphorus and potassium fertilizer utilization comparison test aimed at establishing a rapeseed fertilization index system to guide the precise fertilization Rape. 1 materials and methods