从粮食作物中生产一卡路里需要大约一升水。
It takes about one litre of water to produce one calorie from food crops.
生物多样性确保了新的粮食作物和药物的来源。
Biodiversity ensures a resource for new food crops and medicines.
几个世纪以来，农民们已经发现了数千种不同的粮食作物。
Over the centuries, farmers have discovered thousands of different species of food crops.
他们确实狩猎，也会种植粮食作物、饲养绵羊，但我们不知道为什么有这么多画与狩猎相关。
They did hunt and they also raised cereal crops and kept sheep, but we don't know why so many of the paintings are of hunting scenes.
她正在努力寻找一种方法，从适应极端干旱天气的珍稀野生植物中提取性状，并将其用于粮食作物。
She is hard at work finding a way to take traits from rare wild plants that adapt to extremely dry weather and use them in food crops.
她正在努力寻找一种方法，从那些适应极端干旱天气的稀有野生植物中获取特性，并将它们用于粮食作物。
She is hard at work finding a way to take traits from rare wild plants that adapt to extreme dry weather and use them in food crops.
但这不是一篇很长的论文，所以你要选定一个现代以前农业的特定领域，像是灌溉技术，或古希腊的粮食作物。
But this isn't a long paper, so are you going to need to pick a specific area of pre-modern agriculture, like irrigation or food crops of ancient Greece.
根据《2004年粮农状况》，即使穷人的主要粮食作物——小麦、稻米、白玉米、马铃薯和木薯——亦受到忽视。
Even the major food crops of the poor—wheat, rice, white maize, potato, and cassava—are also being neglected, according to SOFA 2004.
其概念是关于环境控制条件下种植粮食作物的多层建筑。
The concept is of multi-storey buildings in which food crops are grown in environmentally controlled conditions.
他们宣称清洁、绿色的能源已经吞噬了一些最好的粮食作物，包括玉米、油菜和大豆。
Their supposedly clean, green fuel has been gobbling up some of the choicest food crops, including corn, rape, and soya.
所以不适合种植其他粮食作物。
防风林在保护粮食作物方面极具价值。
Windbreaks can be highly valuable for protecting grain crops.
马铃薯是世界主要粮食作物之一。
利用粮食作物生产生物燃料也是如此。
明年农民将种植更多的经济作物取代粮食作物。
The farmers will grow more cash crops next year instead of grains.
迪乌夫说，目前仍然需要大量粮食作物来生产生物燃料。
粮食作物与短缺：英文，法文，西班牙文，中文。
例如，一些研究人员先前曾试图将杂草抗寒特性引入粮食作物。
For instance, some researchers previously looked at introducing the hardiness of weeds into food crops.
是否允许当地农民种植任何粮食作物现在还没有定论。
Whether local farmers will be allowed to sow any crops next year is yet to be established.
大厦的内部主要用于种植粮食作物，但有些楼层可以作为居住空间。
Inside, the tower would be mainly designated for food crops, but some of the floors would be available for housing units.
在近几年中，主要粮食作物的国际贸易一步一步走向危机。
For several years, the global trade in staple foods has been heading towards a crisis.
这些标本，尤其是植物，仅仅被当作潜在粮食作物而研究。
Those specimens, particularly the plants, were scrutinised as potential crops.
在世界的粮食作物中，它的重要性仅次于玉米、小麦和稻谷。
IT IS the world's fourth-most-important food crop, after maize, wheat and rice.
该报告指出，一方面有无可辩驳的理由支持可改变粮食作物的基因构成。
On the one hand, there are compelling arguments for altering the genetic makeup of food crops, notes the report.
从现在算起，十年后，非洲一些地区的粮食作物预计将减产50%。
A decade from now, crop yields in some parts of Africa are expected to drop by 50%.
在粮食作物作为原料之前，起跑线上有三种原料：草料，树木和水藻。
As far as the crops themselves are concerned, there are three runners at the starting gate: grasses, trees and algae.
对于人类福祉而言，几乎没有什么比主要粮食作物的产量更重要的了。
Few things matter to human happiness more than the yields of staple crops.
对于人类福祉而言，几乎没有什么比主要粮食作物的产量更重要的了。
Few things matter to human happiness more than the yields of staple crops.
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