No one could raise crops on this barren land.
没人能够在这么贫瘠的土地上种庄稼。
It is different from settled farming because shifting cultivators raise crops in a place for only as long as the soil allows the crops to grow well.
它不同于固定的耕种，因为轮作耕种者在一个地方种庄稼的时间长短要视那里的土壤适合庄稼生长的时间而定。
By about 6000 BC, people had discovered the best crops to grow and animals to raise.
大约在公元前6000年，人们已经发现了最适宜种植的庄稼和最适宜饲养的牲畜。
Some cooperatives, for example, raise money for research into important crops.
例如，一些合作社筹集资金研究重要农作物。
Some blame bad weather, such as the October floods in China's Hainan province, which damaged crops and helped raise food prices.
有人责怪天公不作美，10月中国海南省的洪水破坏了农作物，导致食品价格上升。
Well, for one thing, we raise most of our crops - hydroponically - in water instead of soil.
好吧，第一点，我们大部分的谷物都是水产的，而不是在土壤中播种。
A: Well, for one thing, we raise most of our crops - hydroponically - in water instead of soil.
答：好吧，第一点，我们大部分的谷物都是水产的，而不是在土壤中播种。
Now at least a hundred commercial crops in the U.S. rely almost entirely on managed honeybees, which beekeepers raise and rent out to tend to big farms.
目前在美国约有一百种商业作物几乎完全依赖人工管理的蜂群传粉，养蜂人驯养并向大农场出租这些蜂群。
Now at least a hundred commercial crops in the U. s. rely almost entirely on managed honeybees, which beekeepers raise and rent out to tend to big farms.
目前在美国约有一百种商业作物几乎完全依赖人工管理的蜂群传粉，养蜂人驯养并向大农场出租这些蜂群。
If drought, blight, or pests don't destroy her crops, she may raise enough to feed her family - and may even have some left over to sell.
如果干旱、病害或虫害没有毁掉她的庄稼，她的收成可能足以养活她的家人——甚至还可能会剩下一些，可以拿到市场上销售。
But such is the human inclination to take water as a birthright that public fountains still may bubble in Arizona's town squares and farmers there raise thirsty crops.
人类理所当然地认为使用水是人与生俱来的权利，所以亚利桑那州的市镇广场上公共喷泉还冒着泡、那里农民们选择种植需水量大的农作物。
With integrated farming, the women raise animals and different crops on one piece of land.
与综合农业，提高妇女的动物和不同作物对一这块土地。
Then, some people learned to grow crops and raise animals for food.
后来，一些人学会种植作物和养殖动物为食。
This will enable them to raise bigger crops.
这将使他们能取得更好的收成。
According to investigate, the element zinc is very poor in soil of most area at present, which has affected crops to raise the per unit yield their disease resistance.
根据调查，目前多数地区土壤中锌元素严重贫乏，影响了作物单位面积产量的提高和抗病性。
Increasing planting early crops on the wetland is an effective measure to fully utilize the spring season resources of temperature or light and raise multiple crop index.
攀西地区下湿田增种早春作物，是充分利用春季光温资源，提高复种指数的有效措施。
Subsequent grants helped to improve water and sanitation, erect fencing for individual land plots, and develop an agricultural program to raise subsistence crops and poultry.
后续的奖助金则协助改善当地的饮水与卫生，为个别土地竖立藩篱，以及开发一个农业计划让居民养植能够自给自足的作物与家禽。
When you think how easy and cheap, relatively , it is to buy a bunch of carrots or beets , why raise them? And root crops especially are hard to tell apart, when store bought, from our own.
你想想买一堆胡萝卜和甜菜根回来是件多么容易而便宜的事情，何必自己种呢?根茎作物尤其难以分辨是自己种的还是买来的。
In order not to cause any harm to these protected animals and also to protect local people's crops, the Jiamusi Forestry Bureau has recently decided to catch and raise these boars.
为了不造成任何伤害这些被保护的动物，也为了保护当地人民作物，佳木斯林业局最近决定来捕捉并提高这些野猪。
Then, some people learned to grow crops and raise animals for food. They were the first farmers.
然后，一些人学会了如何种植庄稼和养育动物为食物，他们也就成了农民。
When the floods cover their lands they cannot grow crops or raise animals.
当洪水淹没土地时，他们无法种植农作物或是饲养动物。
Light rotation film can raise the greenhouse's temperature, enhance the photosynthetic efficiency, and accelerate the crops growth.
转光膜能能提高棚温、增强光合速率，促进作物生长。
These white landowners possessed large amounts of farmland and were in need of cheap labor to help them raise their crops.
这些白人农场主拥有大量耕地，需要廉价劳动力来帮助他们种庄稼。
In order to perform such a function effectively, it is necessary for them to raise cattle and grow crops in a fairly concentrated areA.
为了让这种机能有效进行，对他们有必要在一个完全集中的A地区养牛和种植作物。
To raise grain yield it is necessary to increase the investment in agriculture and to ensure proper scale of growing area under grain crops.
要增加粮食产量，必须增加对农业的投入，保持适度规模的粮食种植面积。
Then, some people learned to grow crops and raise animals for food.
然后，有些人学会种植庄稼和饲养动物的食品。他们的第一个农民。
Mautner was interested in exploring whether, in the future, human 3 colonies on Mars might be able to raise 4 crops there.
莫那想研究未来人类在火星的殖民地上能否种植农产品。
Mautner was interested in exploring whether, in the future, human 3 colonies on Mars might be able to raise 4 crops there.
莫那想研究未来人类在火星的殖民地上能否种植农产品。
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