Yield per hectare continued expanding until the 1990s.
每公顷产量持续增加，直至20世纪90年代。
It is also packed with carbon: up to 400 tonnes per hectare.
此处碳储量同样丰富：每公顷高达400吨。
By comparison, Mexican farmers use 200 kilograms per hectare.
相比之下，墨西哥农民每公顷使用200千克氮。
Since 2000, yields per hectare have risen by nearly two-thirds.
自从2000年以来，每公顷产量已经提高大约三分之二。
This spring Mr Pisa will reap around 3 tonnes of soyabeans per hectare.
今年春天，比萨先生将收获每公顷约3吨的大豆。
In Iowa in the US, the average rain-fed maize yield is 10 tonnes per hectare.
在美国爱荷华州，靠雨水供养的玉米平均产量为每公顷10吨。
And experts say potatoes can produce more food per hectare than wheat or rice.
并且专家指出，每公顷产出的土豆提供的食物比大米或小麦都多。
Europe has learned to grow more food per hectare and use fewer chemicals in the process.
欧洲学会了如何使每公顷种植更多的食物，同时使用更少的化学品。
PepsiCo potato farms in China yield 45 tons per hectare, among the highest yields in the world.
目前百事中国农场的马铃薯平均产量为每公顷45吨，位居世界前列。
According to statistics, yearly output yield of cranberries is something around 600 kilos per hectare.
据统计，蔓越莓年产量每公顷大约600公斤。
He added that an ordinary rice variety without the 'sub1A' gene produces less than one ton per hectare.
他还说没有“sub1A”基因的水稻品种每公顷产量不到1吨。
And he says they are already earning him more money per hectare than his neighbors who farm the modern way.
他还说这些做法已经让他每亩地的盈利超过了用现代方式种植的邻居。
Peatland can store over 5,000 tonnes of carbon per hectare, and when drained for cultivation emits it for decades.
每公顷泥炭地可储存超过5000吨碳，而当它们被抽干用于耕作时，将会在数十年中排放碳。
Peatland can store over 5, 000 tonnes of carbon per hectare, and when drained for cultivation emits it for decades.
每公顷泥炭地可储存超过5000吨碳，而当它们被抽干用于耕作时，将会在数十年中排放碳。
In 2007 an economic study of such shrimp farms in Thailand showed that the commercial profits per hectare were $9,632.
2007年，一个经济研究称这种规模的虾场在泰国的商业利润大概是9632美元1公顷。
Yet west European farmers achieve yields of up to 9 tonnes per hectare, whereas east European ones get just 2-4 tonnes.
东欧和西欧都很适宜于种植小麦，但是，西欧农民的收成是每公顷9吨，而东欧农民的收成仅仅是2—4吨。
Most of Brazil's farmland is pasture, running to some 175m hectares and occupied by around half a cow per hectare.
巴西大部分的农田是牧场，达到1亿7千5百万亩，大约每一亩里有半头牛。
In 2007 an economic study of such shrimp farms in Thailand showed that the commercial profits per hectare were $9, 632.
在2007年，一项经济研究表明，在泰国，一公顷这种虾场的商业收益为$9632。
Wheat yield this year reached around 8 million ears per hectare, surging more than 2.4 million ears compared with last year.
今年的小麦产量达到每公顷约800万穗，比去年急剧增长了超过240万穗。
Our man-made forest growing stock per hectare poses/ records only 49 cubic meters that equals only over 3 cubic meters per Mu.
我国人工林森林蓄积量每公顷只有49立方米，也就是一亩地只有3点几个立方米。
The service usually costs less than $15 per hectare for a handful of readings a year, and can increase yields by as much as 10%.
这项服务的价格每公顷不到15美元，能提供一年多次的测量服务，增产幅度可达10％。
At the moment, cereal yields in Africa are around one tonne per hectare, compared with three-to-four tonnes in Europe and rich Asia.
目前，非洲的谷物产量约为每公顷一吨，而欧洲和亚洲富裕国家，为一公顷3到4吨。
Kramer calculates that if Haiti recycled 50 percent of the nutrients in human waste onto farmland, input would leap to 17 kilograms per hectare.
克雷默计算了一下，如果海地将人类排泄物中的50%养分回收利用到农田，那么每公顷氮的投入将跃升到17千克。
Subsistence farming may, indeed, yield only $200-300 per hectare but paying that sum to the locals will not give them shops in which to buy food.
温饱农业的产值可能每公顷的确只有200至300美元，但是把这些钱给当地人还不够给他们开食品店买食品。
An example, surprisingly, is Brazil, which has just one head of cattle per hectare-an unusually low number even for a country with so much land.
例如巴西，令人惊奇的是平均每公顷仅有1头牛，即使对于一个如此多土地的国家，这也是一个非常低的数字。
Using sugar cane, Brazil produces far more ethanol per hectare, with fewer emissions, than the United States does with its corn-based equivalent.
利用甘蔗，巴西每公顷的酒精产量要远远超过美国同等面积的玉米酒精产量，而排放物则减少。
Using sugar cane, Brazil produces far more ethanol per hectare, with fewer emissions, than the United States does with its corn-based equivalent.
利用甘蔗，巴西每公顷的酒精产量要远远超过美国同等面积的玉米酒精产量，而排放物则减少。
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