《犁的纪念碑》要求一三角状地块，每边宽一英里，以轮种方式在每个边种植季节性作物。
"Monument to the Plow" called for a triangular site a mile wide on each side to be planted with seasonal crops on rotation.
等到极移完成后再开始新一轮种植。
这块地轮种大麦、燕麦和黑麦。
The field was planted with barley, oats and rye in rotation.
农民们可以将它和谷类作物轮种。
这里油菜和大麦轮种。
每年播种作物的轮种带可用作休耕带的防风林。
Alternate strips planted to crops each year serve as windbreaks for the fallow strip.
土地经过多年轮种变的贫瘠，需要补充有机质。
After several years of crop rotation, the land became infertile and needed to be supplemented with organic matter.
土豆是个很好的营养来源，农民可以将它与谷类作物轮种。
Potatoes are a good source of nutrients. And farmers can plant them in rotation with grain crops.
其他增大土壤肥力的策略包括作物肥田(亦作“绿肥”)、轮种和堆肥。
Other organic tactics for boosting soil quality include cover crops (aka "green manure"), crop rotation and composting.
土豆是一种良好的营养来源，而且农民可以将它与谷类作物轮种。
Potatoes are a good source of nutrients. And farmers can plant them in rotation with grain crops.
为了大幅度地减少土壤损失，农民正在山坡地上修梯田，轮种庄稼并采用新的耕作方法。
Concerned farmers are building terraces on hilly fields, rotating their crops, and using new plowing methods to cut soil losses significantly.
本文着重于讨论下蜀黄土起源的水稻土在稻麦轮种下土壤酸碱度和氧化还原电位的变化。
This paper discussed the changeability of the pH and Eh values in paddy soils(originated from Xia-Shu loess)at rice-wheat(or rade) system.
我国农作制度的历史演进过程大致可以划分为四个时期，即撂荒制、休闲制、轮种制和集约制。
The historical evolution of tillage system in China can be divided into four stages: abandoning cropping system, fallow cropping system, rotational cropping system, and intensive cropping system.
一些作物本身就具备防治病虫害、保持土壤肥力的功效，人类辅以轮种；即便需要添加一些肥料，大多用的是人畜粪便。
Some plants would control pests and soil quality naturally, and humans helped by rotating their crops; if extra fertilizer was needed, manure usually filled in.
一些作物本身就具备防治病虫害、保持土壤肥力的功效，人类辅以轮种；即便需要添加一些肥料，大多用的是人畜粪便。
Some plants would control pests and soil quality naturally, and humans helped by rotating their crops; if extra fertilizer was needed, manure usually filled in.
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