Large flows of nitrogen between the atmosphere, terrestrial and aquatic ecosystems contribute to the global cycle on Earth. When balanced, this cycle ensures that life at every level can flourish and diversify. However, in the past 50 years, humans have had a large, negative influence on nitrogen cycle pushing it beyond safe boundaries at the global level. Alternative, wholesome strategies are needed for the agricultural systems to achieve sustainability without compromising crop yields. Decades of research in the field of biological nitrogen fixation in symbiotic root nodules paved the way for ambitious bioengineering projects aiming to meet the nitrogen request in a sustainable manner. Parallel studies of the other microbes that associate with healthy plants in nature unveiled a tremendous, untapped resource for biostimulants. Many of these interactions are now worth investigating in detail to enable understanding at the molecular and ecological level and facile transfer into agricultural settings.

中文翻译：

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微生物缔合使植物能够吸收氮。

大气层，陆地和水生生态系统之间的大量氮流动助长了地球的全球循环。保持平衡后，此循环可确保各个层次的生活都能蓬​​勃发展和多样化。然而，在过去的50年中，人类对氮循环产生了巨大的负面影响，使氮循环超出了全球范围内的安全界限。农业系统需要其他有益健康的战略，以实现可持续性而不损害作物单产。共生根瘤中生物固氮领域的数十年研究为旨在以可持续方式满足氮需求的雄心勃勃的生物工程项目铺平了道路。对与自然界健康植物相关的其他微生物的平行研究揭示了一种巨大的，尚未开发的生物刺激剂资源。