He grew a different crop on the same field five years in a row, what researchers call crop rotation.

他连续5年在同一块地上轮流种植不同作物，研究人员称之为轮作。

Our objective was to explore why Sesamum indicum yield declined severely when planted after Rehmannia glutinosa in crop rotation.

我们的目的是探索为什么在熟地黄轮作中种植地黄后，芝麻的收成会急剧下降。

A rotation of personnel; crop rotation.

员工的轮流替换；

Crop rotation helps prevent soil erosion.

农作物轮作有助于防止水土流失。

Crop rotation is the best way to increase output.

想提高产量，最好的办法是倒茬轮作。