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随着甘肃省靖远县大芦村种植的大蒜、土豆、玉米这3种农作物的丰收,以及本地市场行情好转,农户为了增产增收,不合理地使用农业肥料造成农作物大量减产,给农民带来了不可估量的经济损失,也造成很多农田土壤的严重污染。基于此,分析2010-2013年该地农户种植大蒜、土豆、玉米的产量数据,结合经济学中“边际报酬递减规律”原理说明施肥量对这3种农作物的影响,给农民下一年种植提出合理建议。
With the good harvest of the three kinds of crops such as garlic, potato and corn planted in Dalu Village, Jingyuan County, Gansu Province, as well as the improvement of the market conditions in the local market, farmers have been using irrigated agricultural fertilizers to cut down their crops in large numbers in order to increase production and incomes. Invaluable economic losses, but also caused a lot of farmland soil pollution. Based on this, the production data of garlic, potato and corn planted by farmers in this area from 2010 to 2013 were analyzed. The influence of fertilization on these three kinds of crops was explained according to the principle of “law of diminishing marginal returns” in economics and gave farmers the following year Planting makes reasonable suggestions.