While chemical fertilizers can be used to increase crop yield, the abuse of fertilizers aggravates environmental pollution and soil degradation. Understanding the effects of chemical fertilizers on the interaction between arbuscular mycorrhizal fungi (AMF) and pest insects is of great benefit to crop and environmental protection, because AMF can enhance the nutrition absorption and insect resistance of crops. This study tested the effect of different levels of phosphorus, nitrogen, and their interactions on AMF, secondary metabolites, Sitobion avenae in garden, as well as the wheat traits in field. The results showed that AMF colonization on roots in the P0N1 treatment (0 g P/pot, 1.3083 g N/pot in the garden, and 0 g P/plot, 299.84 g N/plot) was the highest in both the garden and the field. The abundance of aphid was reduced in the P0N1 treatment, and there were negative relationships between aphids and AMF and phenolics, but a positive relationship between AMF and phenolics. Our results indicated that a change in the ratio of phosphorus to nitrogen affects the relationship among AMF, aphid abundance, and metabolites. The results also suggested an approach to save chemical fertilizers that could improve crop health and protect the agroecosystem against pollution at the same time.

中文翻译：

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磷和氮肥不同组合对小麦丛枝菌根真菌和蚜虫的影响。

虽然可以使用化学肥料来增加农作物的产量，但肥料的滥用会加剧环境污染和土壤退化。理解化学肥料对丛枝菌根真菌（AMF）与害虫之间相互作用的影响，对农作物和环境保护有极大的帮助，因为AMF可以增强农作物的营养吸收和抗虫性。这项研究测试了不同水平的磷，氮及其相互作用对AMF，次生代谢产物，Sitobion avenae的影响 在花园里，以及田间的小麦特性。结果表明，在P0N1处理中，根系上的AMF菌落数量最高（花园中为0 g P /盆，花园中1.3083 g N /盆，花园中和花园中0 g P /地，299.84 g N /盆）最高。领域。 在P0N1处理中，蚜虫的丰度降低了，蚜虫与AMF和酚类之间存在负相关，而AMF与酚类之间存在正相关。我们的结果表明，磷氮比的变化会影响AMF，蚜虫丰度和代谢产物之间的关系。结果还提出了一种节省化学肥料的方法，该方法可以改善作物健康并同时保护农业生态系统免受污染。