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通过直播油菜的不同施肥方式试验,从经济性状分析,总施肥量纯氮14kg(处理2和处理1)与总施肥量纯氮为12kg(处理4和处理3)相比较:株高高4.5~11.2cm,单株有效角果数多15.1~24.6cm,其它经济性状差别不明显。从产量分析结果看,总施肥量纯氮为14.0kg(处理2和处理1)与总施肥量纯氮为12.0kg(处理4和处理3)之间差异极显著,但同一总施氮量不同施肥方式之间(处理1和处理2之间、处理3和处理4之间)差异不显著。综合以上结果,建议陕西省西乡县直播油菜总施肥量纯氮14kg、纯磷5kg、纯钾7kg、硼肥1kg为宜;氮肥施用方式(基肥∶腊肥∶薹肥)采用5∶3∶2或6∶3∶1均可。
Through the experiment of different fertilization methods of live rapeseed, from the analysis of economic traits, the total amount of pure nitrogen 14kg (treatment 2 and treatment 1) was compared with the total amount of pure nitrogen 12kg (treatment 4 and treatment 3) 11.2cm, the number of effective pods per plant more 15.1 ~ 24.6cm, no significant difference in other economic traits. From the results of yield analysis, the difference between the total amount of applied nitrogen of 14.0kg (Treatment 2 and Treatment 1) and the total amount of applied nitrogen of 12.0kg (Treatment 4 and Treatment 3) There was no significant difference between fertilization modes (between Treatment 1 and Treatment 2, Treatment 3 and Treatment 4). Based on the above results, it is suggested that the total amount of pure nitrogen, 14kg pure phosphorus, 7kg pure potassium and 1kg boron are suitable for the direct seeding rapeseed in Xixiang County, Shaanxi Province. The application of nitrogen fertilizer (basal fertilizer: 2 or 6: 3: 1 can be.