Research has shown that Tanco could reprocess the by-product of potassium chloride use to yield a crop fertilizer, leaving a relatively small volume of waste for disposal.

研究表明，Tanco 可以对氯化钾的副产品进行再加工，从而生产出一种农作物肥料，只留下相对较少的垃圾。

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In the early 1940s, basking in the glory of chemical-based intensive agriculture, the farmers avidly took to pesticides as a sure measure to boost crop yield.

在20世纪40年代早期，农民们沐浴在以化学品为基础的集约农业的光辉下，贪心地把杀虫剂当作增加作物产量的一种可靠方法。

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Worryingly for those betting on a swift economic recovery, business schools reckon that next year could yield an even bigger crop of applicants.

现在对于那些打赌明年经济会好转的人比较担心，因为商学院预计下一年会有更多的申请者。

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The MDA EarthSat crop tour estimated a corn yield of a 118 bushels per acre after surveying 49 fields in Iowa, Illinois, Indiana and Ohio.

MSN: Drought slashes Midwest corn crop

"If we got three-quarters of the area planted, and the same yield as last year, we could be looking at a crop of only 11m tonnes of wheat when we actually need 14.5m tonnes of wheat for our own domestic use here in the UK, " he said.

BBC: Britain 'running out of wheat' owing to bad weather

If you are looking for yield and a cheap multiple within the chemical patch, DuPont is the cream of the crop.

FORBES: Yields Trigger Chemical Stock Reaction