It is well-established that maize (Zea mays L.) grown in extended rotations produces higher grain yields compared to maize grown in one- or two-phase rotations, even when nitrogen (N) is not limiting. Understanding the mechanisms driving this phenomenon, commonly referred to as ‘the rotation effect’, is important for designing cropping systems that use land and other resources efficiently. Differences in root systems can influence crop resource acquisition and therefore yield, but it is unknown if such differences play a role in the rotation effect.

中文翻译：

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旋转效果的根源很深


众所周知，与一相或两相轮作种植的玉米相比，长轮作玉米 （Zea mays L.） 的产量更高，即使氮 （N） 不受限制。了解驱动这种现象的机制，通常称为“轮作效应”，对于设计有效利用土地和其他资源的种植系统非常重要。根系的差异会影响作物资源的获取，从而影响产量，但尚不清楚这种差异是否在轮作效应中起作用。