肥力的英文：
fertility

Farmers enrich the soil with organic and inorganic manures.
农民用有机肥料和无机肥料来提高土壤的肥力。

The fertility of the soil has been greatly improved by the use of pesticides.
土壤施用杀虫剂後肥力大增

When cultivated and stripped of their dense vegetative cover, soils of the humid tropics quickly lose their fertility
当将厚密的植被除去并耕种时，潮湿热带地区的土壤就会迅速失去其肥力。

They're nomad cultivators,never replenishing the soil.When they've milked the land dry they move on somewhere else.
他们采用的是游牧型的耕作方式，从不给土壤加点肥，一旦把土地的肥力抽干了，就往别处迁移。

Fertilizer is a substance put on land to fertilize it.
肥料是施在地里使之肥沃的物质。

Farmers worked the fertile valleys.
农民们在肥沃的山谷里耕种。

The fertilization of soil is a subject to the farmers.
肥料的施用对农民来说是一门学问。

She has a fertile mind.
她有着想像力丰富的头脑。

Such soils vary in texture and fertility.
这种土壤的结构和肥沃度差异很大。