过去一年里异常干旱的气候降低了农业产量。
Exceptionally dry weather over the past year had cut agricultural production.
实践证明，低耕农业提高了作物产量，减少了用水量；而且，由于有害植物变少了，这种农业对化工产品的需求也降低了。
It has been proved that Low Till Farming increases harvests and reduces water use, and this method reduced the need for chemical products because there are fewer unwanted plants.
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。
And, as older farmers leave the Labour force and young ones go to cities, the decline in agricultural knowledge could reduce grain yields.
当旱灾或洪灾可以摧毁庄稼的时候，这是可以理解的，但这么做会降低农业的产量。
That is understandable when drought or deluge can destroy their crop, but it has the effect of reducing yields.
由于转基因农业技术在降低化肥、杀虫剂和水利灌溉等投入的同时可使产量剧增，因而它能在未来扮演重要角色。
Genetically modified (GM) agriculture could play an important role, as this technology can greatly increase yields while using smaller inputs of fertiliser, insecticide and water.
博拉格的方法能有效提升产量，却降低了可耕地面积，而且看起来他要证明有机农业的做法是错误的还需要数年时间。
Borlaug's methods often raised yields while reducing acreage, and it seemed for years he'd proven the organic movement wrong.
博拉格的方法能有效提升产量，却降低了可耕地面积，而且看起来他要证明有机农业的做法是错误的还需要数年时间。
Borlaug's methods often raised yields while reducing acreage, and it seemed for years he'd proven the organic movement wrong.
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