Agriculture takes place in nature, among ecosystems of interacting organisms and activity, and crop production takes place within that ecosystem environment.

农业是在大自然中进行的；大自然里的生态系统中各种生物和活动相互影响，而粮食的生产正是处在这样的生态环境中。

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In many African countries, agriculture remains the principal economic activity, and agricultural products are the principal source of export trade.

在许多非洲国家，农业仍是主要的经济活动，农产品是主要的出口贸易产品。

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New England is made up of six states of the Northeast .Because of its stony soil it is not noted for its agriculture. Dairying is the most inportant farm activity.

新英格兰由美国东北部六个州组成，由于土壤多石，不利于农业生产，乳制品业是最重要的农业活动。

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Agriculture was overwhelmingly the activity, the most important activity of the people of that area, of any area.

绝大多数经济活动是农业活动,农业对该地区,甚至任何地区的人民来说,都是最重要的活动

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He said the most important element is the "civilian surge" -- the dispatching of experts to Afghanistan to help the country produce more effectively in all sectors of the infrastructure and economy, including agriculture, water management and economic activity.

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Conservation easements, unlike national parks, do generally allow for some economic activity to happen, usually preexisting uses like agriculture and sustainable timber cutting.

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Most of the labor force is engaged in subsistence agriculture, especially livestock herding, although drought has decreased agricultural activity.

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