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作者	单位
刘倩倩,陈欢,张存岭,乔玉强,陈天河,徐汝民,唐俊,曹承富	（1.阜阳师范大学,安徽阜阳 236037 2.安徽省农业科学院作物研究所，安徽合肥 230031 3.安徽省濉溪县科学技术协会，安徽淮北 235100 4.安徽省帝元生物科技有限公司，安徽合肥 230036）

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中文摘要:

为了解不同新型小麦专用肥应用效果，以13种小麦新型专用肥为材料，采用主成分-聚类分析方法，系统分析了不同肥料对小麦产量及氮素吸收与利用的综合影响。结果表明，相较于传统施肥（常规复合肥一次性基施）和推荐施肥（常规复合肥基施+拔节追尿素），施用新型专用肥后小麦分别增产-24.34%~2.72%和-11.82%~19.72%。与传统施肥相比，施用新型专用肥的小麦植株氮素积累量比传统施肥增加-9.97%~38.44%，氮肥偏生产力、氮肥农学效率和氮肥回收率分别提高-17.99%~19.67%、-18.96%~33.81%和-25.79%~69.04%。经主成分分析，总养分含量为48%的控失肥、保持性肥料、活性增效复合肥、活性尿素BB肥和控失增效二铵BB肥等5种新型专用肥的丰产增效综合效果较佳，可替代推荐施肥。

英文摘要:

In order to study the integrated effects of new and specific fertilizers on yield,nitrogen (N) uptake and N use efficiency of winter wheat,thirteen types of new fertilizers were investigated based on the component-cluster analysis. The results showed that there were significant differences in grain yield of winter wheat among different fertilization treatments. The new-type fertilizers increased yield by -24.34% to 2.72% and -11.82% to 19.72%,respectively,compared to traditional fertilization (one-off application of normal compound fertilizer) and recommended fertilization (basal application of normal compound fertilizer + topdressing application of urea). The new-type fertilizers also improved the plant N uptake,by -9.97% to 38.44%,compared to traditional fertilization. In addition,new-type fertilizers enhanced N partial factor productivity,agronomic N efficiency and N recovery efficiency by -17.99% to 19.67%，-18.96% to 33.81% and -25.79% to 69.04%,respectively,compared to traditional fertilization. According to hierarchical cluster analysis of the four principal components,five new-type fertilizers were screened as substitutes of recommended fertilization,including controlled-lost fertilizers,nutrient-retaining fertilizer,active synergistic compound fertilizer,bulk blending fertilizer containing active urea,and bulk blending fertilizer containing loss-control synergistic diammonium phosphate.

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