[目的]通过试验证明中微量元素钙施用后的增产效果。[方法]在整地时基施钙肥,分析钙肥对油菜的增产效应。[结果]试验证明,通过基施硝酸钙,种植油菜效益得到提升,施用量60 kg/hm2纯钙和施用量120 kg/hm2纯钙处理油菜分别增产32.8%和51.6%,分别增加效益3 046.6和4 647.7元/hm2。[结论]基施纯钙60和120 kg/hm2处理比未施用钙肥处理分别增效3 046.6和4 647.7元/hm2,值得推广。 [Objective] The experiment proved the effect of increasing the yield of trace element calcium after application. [Method] Applying calcium fertilizer at the time of site preparation to analyze the increasing effect of calcium fertilizer on rape. [Result] The experiment proved that the benefit of planting rapeseed by basal application of calcium nitrate was improved. The application of pure calcium of 60 kg / hm2 and pure calcium of rape of 120 kg / hm2 application increased yield by 32.8% and 51.6%, respectively, with an increase of benefit of 3 046.6 And 4 647.7 yuan / hm2. [Conclusion] The basal application of 60 and 120 kg / hm2 of pure calcium was 3 046.6 and 4 647.7 yuan / hm2, respectively, which was worth popularizing.