This is the decline in the growth in yields of some of the world's major crops.
这是世界上一些主要农作物产量增长速度的下降。
He had come to Mexico in 1944, leaving a good job at DuPont, to increase grain yields, and to bring these half-starving people food.
1944年，他来到墨西哥，辞去了杜邦公司的一份好工作，目的是提高粮食产量，为这些处于半饥饿状态的人们提供食物。
They find that on between 24% and 39% of all harvested areas, the improvement in yields that took place before the 1980s slowed down in the 1990s and 2000s.
他们发现，20世纪80年代之前的产量增长速度在20世纪90年代和21世纪有所放缓，这占据了作物收割面积的24%至39%。
The trouble is that the forecast assumes continued improvements in yields, which may not actually happen.
问题在于，该预测假定产量将持续上升，但实际情况可能并非如此。
Every rise of one degree Celsius means a ten percent reduction in grain yields.
每升温摄氏一度意味着农作物减产一成。
But there are two reasons that the earthquake may not trigger a sharp rise in yields.
然而，这次地震也可能不会导致债券收益飙升，原因有二。
That would no doubt cause a quick dip in yields and might bolster riskier assets.
毫无疑问，这将导致收益率迅速下滑并有可能对风险更大的资产形成支撑。
Agriculture, meanwhile, remains important and has room for significant improvement in yields.
与此同时，农业仍很重要，农业产量尚有大幅增加的余地。
The decrease in yields today is a sign that the market is calming down, but confidence remains in doubt.
日前，国债收益率的下降便表明市场已经趋于稳定，只是对市场的信心还需要重建。
Mortgage rates have fallen back to historic lows, tracking declines in yields on American government bonds.
紧跟美国国债利率的下滑，房贷利率也已回落至历史低位。
The following two charts show the movement in yields of the U.S. 2 year and 5 year note over between 2001 and 2002.
下面两个图表显示了在2001至2002年度的某个时段中，2年期国债与5年期国债的收益率曲线的变化情况。
And the growth in yields has been slowing down, from about 3% a year for staple crops in the 1960s to around 1% now.
产量增长已经放缓，粮食作物从1960年的大约3%每年降到现在的1%左右。
The difference in yields on Treasury debt and mortgage bonds guaranteed by Fannie has narrowed roughly 0.7 percentage points.
美国国债收益率和房利美担保的抵押贷款债券收益率之间的利率已经缩小了大约0.7个百分点。
This is unsustainable and without a sharp drop in yields it becomes inevitable that Lisbon will have to apply for funds.
这样的水平不可持续，如果没有急跌，该国将不得不申请救援。
And what if the slower rise in yields reflects something more fundamental, the approach of some sort of biological limit in plants?
而如果收益率增长反映了更多根本的东西怎么办，比如说植物中的某种生物极限呢？
There are abundant microorganism and nutrition in sludge which can contribute to the increase in yields and improve crop qualities.
污泥中含有大量的微生物及营养成分，对不同的作物及植物有增产和改善品质的作用。
But there may be a case for the Fed to schedule extra, smaller purchases to avoid a sharp rise in yields when the current programme ends.
但是这项措施完成后，美联储还得计划再进行一次规模小一点的收购，以避免收益率陡然上升。
However, sovereign bonds would "generate turbo-charged returns" mimicking the secular slide in yields seen in Japan as the slump ground on.
然而，主权债券，将“产生的涡轮增压回报”模仿在日本被视为地面上的低迷世俗产量下滑。
By one estimate, only 40% of the increase in world grain output now comes from rises in yields and 60% comes from taking more land under cultivation.
据一项估计表明，世界粮食产量增长额的40%来自于纯产量增长，而60%依靠占用更多土地实现。
With Italian yields jumping sharply, further margin increases could be on their way, prompting further rises in yields and yet more margin increases.
随着意大利国债收益率飙升，可能出台进一步的保证金上调，从而进一步推高收益率，并引发更大幅度的保证金上调。
While there is the potential to achieve large increases in yields, the rising cost of cotton production is a major concern to all cotton producers.
尽管实现产量大增很有可能，但棉花生产成本上升是所有棉花生产者主要关心的问题。
In November, memory market researchers DRAMeXchange reported that improvements in yields via new technology combined with falling consumer demand meant that DRAM prices have dropped significantly.
十一月，内存市场研究机构DRAMeXchange报道由于新技术对产量的提升加上消费需求下降，内存价格将会显著下降。
The spike in yields on Treasurys on Friday was driven by the view that the Federal Reserve would need to raise interest rates sooner than expected, possibly slowing the economy too fast, too soon.
上周五国债收益率蹿升即是受这样一种看法推动：美国联邦储备委员会(Fed，简称：美联储)需要比预期更快地上调利率，从而可能令经济增速过快、过早地减缓。
Callow said, noting that it was a surge in yields on Italian bonds last month that threatened core countries in Europe like Germany and France with contagion, prompting investors to dump their bonds.
Callow说，强调上个月意大利债券利息激增通过蔓延已经威胁到了欧洲的核心国家比如德国和法国，引发投资者对他们的债券进行抛售。
Truvia's total rice acreage will not be expanded in the foreseeable future, nor will rice yields per acre increase appreciably.
在可预见的将来，特鲁维亚的水稻总面积不会扩大，每亩水稻产量也不会显著增加。
Specialisation and the effort to increase yields have resulted in the decrease of biodiversity.
专业化和提高产量的努力导致了生物多样性的减少。
Specialisation and the effort to increase yields have resulted in the decrease of biodiversity.
专业化和提高产量的努力导致了生物多样性的减少。
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