Crop rotation is a simple and effective technique used in organic agriculture to reduce the need for pesticides and improve soil fertility.

轮作是应用于有机农业上的一种简单而有效的技术，能减少农药的使用和提高土壤肥力。

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This would lead us to a life close to the soil and the elements that needs only simple and communal pleasures to find fulfillment.

这将会令我们的生活更贴近土地和其他基本元素，这种生活中，人们只需要一些简单的乐趣，和社群的娱乐，便可幸福满足。

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The recipe is simple: a few drops of water and glass-like marbles to provide a kind of scaffolding for roots in the soil.

方法很简单：几滴水和玻璃状的弹子为土壤中的植物的根提供一个支架。

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They prepare the soil for planting with their hands or simple tools.

VOA: special.2009.04.14

Partly, it is because African leaders and foreign donors have been almost equally indifferent to smallholder farmers and simple improvements to soil and seeds.

ECONOMIST: Africa's population

But it's not as simple as just putting a plant in the soil, Raskin says.

CNN: Flower power

Knapp gave him a list of simple innovations to follow things like deeper plowing and better soil preparation, the use of only the best seed, the liberal application of fertilizer, and more thorough cultivation to remove weeds and aerate the soil around the plants.

NEWYORKER: Testing, Testing