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.
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