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。
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。
As a result, grain yields are below one tonne per hectare in most of the region.
因此，大多数地区的农作物产量每公顷还不足一吨。
The important limited factor is the severe water and soil erosion in hilly fields to result in low and unstable grain yields.
但辽宁坡耕地水土流失严重，粮食产量低而不稳，是限制的重要因素。
The results obtained were listed as follows. Compared to Elio , grain yields of Nanguang were more than 50% under two N rates.
结果表明，在两个供氮水平下，氮高效水稻南光的产量均显著大于氮低效水稻，增幅在50%以上。
And, as older farmers leave the Labour force and young ones go to cities, the decline in agricultural knowledge could reduce grain yields.
同时由于老年人失去劳动力，青壮年去了城市，农业知识水平的下降可能会降低粮食产量。
In Pakistan and India, two of the nations that benefited most from the new crop varieties, grain yields more than quadrupled over the period.
在巴基斯坦和印度，这两个从新粮食作物品种中受益最多的国家，在那段时间粮食产量增长了四倍以上。
There was no significant difference of rice grain yields between the treatments of straw mulching and plastic film covering but the cost and soil pollution in the latter should be concerned.
覆膜处理虽在产量和水分利用效率上略高于盖草处理，但差异不显著，且覆膜处理存在成本高，污染土壤等缺陷。
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。
The European Commission's energy team says shortfalls in grain can be avoided in several ways, including by improving farming yields and cultivating abandoned land.
欧盟委员会能源局说粮食作物的短缺可以从几个方面得到弥补，包括提高单产和开垦弃慌土地。
Yields of this staple grain have increased exponentially since the 1950s because better farming practices and new wheat breeds have more than made up for those hot Julys.
大宗谷物的产量从20世纪50年代开始指数级的增长是由于更好的粮食生产手段和新的小麦品种大大弥补了火热的七月造成的影响。
Ronald added her new rice yields about five-fold more grain under conditions of flooding.
罗奈尔德还表示，洪水条件下，新品水稻的产量将在传统水稻产量的6倍左右。
When done accurately this method of processing guitar tops yields wood that displays the medullary rays that run at a right angle to the growth of the grain.
当如此精确的加工吉他面板时，其髓射线和生长纹理线是垂直的。
This process essentially involves cutting radial slices from the center of a log outward and yields wood with consistent grain and density that is resistant to warping in changing climates.
这一程序主要包括从圆木中心向外截取放射状的薄片，使之纹理和密度一致，从而在不同的气候中不易扭曲。
And it was more significant to achieve higher yields by increasing grain number per spike than by enhancing spike number per unit area.
通过增加穗粒数来实现高产比增加单位面积穗数意义更大。
The rice is main grain crops in the world. The areas of rice-planting is 23 percent of the total areas of grain-planting and the yields is about 29 percent of the total yields of grain.
水稻是世界上主要的粮食作物，全世界水稻种植面积约占谷物总面积的23%，稻谷总产量约占谷物总产29%。
High overload yields great influence on the grain combustion of SRM (solid rocket motor) in working process.
大过载会对固体火箭发动机装药燃烧产生很大的影响。
High overload yields great influence on the grain combustion of SRM (solid rocket motor) in working process.
大过载会对固体火箭发动机装药燃烧产生很大的影响。
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