Tim Joseph's grass-fed program is only one example of how American farming practice is changing.

蒂姆·约瑟夫的草饲计划只是美国农业实践正在发生变化的其中一个例子。

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Did the shortage and high cost of labour change farming practice and push technology?

是劳动力的缺乏及其高成本改变了农业耕作方式并推动了技术革新吗？

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The presence of nitrate in the water is predominantly a consequence of land management decisions and farming practice.

BBC: Thames archive reveals long nitrate rise

This is not all that much different from farming practice in developed countries, where growers have long been used to buying new hybrid seed every year.

ECONOMIST: Terminator genes

The only way to discover whether they will arise in real life, or whether they will be any more damaging than similar risks posed by conventional crops and farming practice, is to do more research in the field.

ECONOMIST: Who��s afraid?