Biodiversity ensures a resource for new food crops and medicines.

生物多样性确保了新的粮食作物和药物的来源。

youdao

It takes about one litre of water to produce one calorie from food crops.

从粮食作物中生产一卡路里需要大约一升水。

youdao

Over the centuries, farmers have discovered thousands of different species of food crops.

几个世纪以来，农民们已经发现了数千种不同的粮食作物。

youdao

This method might be used to help engineer food crops that are resistant to extremely dry conditions.

VOA: special.2010.01.26

Today,we will tell about a genetic map of one of the world's major food crops.

VOA: special.2009.11.03

Potatoes are one of the world's leading food crops.

VOA: special.2009.11.03

Usually he'll grow other food crops corn, cassava, peanuts to feed his family.

NPR: U.S., European Subsidies Undercut African Farmers

At the beginning of the rains, both food crops and leguminous trees are planted.

ECONOMIST: A new twist on an old idea is improving farm yields in Africa

"They pollinate at least 30 per cent of the food crops we consume, " he said.

BBC: Londoners eye dead bee images in 'bee-friendly' scheme