In modern agriculture, mineral depletion of soils is a major concern, since harvesting crops interrupts the recycling of nutrients back to the soil.

在现代农业中，土壤的矿物损耗是一个主要的问题，因为收割农作物会中断养分的循环，使其无法重新回到土壤中。

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So-called serpentine soils, for example, are deficient in calcium, and only plants able to tolerate low levels of this mineral can survive.

例如，所谓的蛇形土壤缺乏钙，只有对低水平的这种矿物质耐受的植物才能生存。

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Earthworms comminute the mineral fraction of soils.

蚯蚓粉碎土壤中的无机物碎片。

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Without the fiber and the mineral content of that stalk fiber the soils become quickly depleted.

FORBES: Breakthrough in Biofuels? Maybe.