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通过对朔州市近30年氮、磷、钾肥的施用以及粮食总产量的调查研究,得出1980~2010年间,氮肥施用量的最大值为2004年,其值为33789吨,氮肥施用量的最小值为1982年,其值为11434吨;磷肥施用量的最大值为1994年,其值为16118吨,磷肥施用量的最小值为1981年,其值为3579吨;钾肥施用量的最大值为2004年,其值为7114吨,钾肥施用量的最小值为1981年,其值为49吨;粮食总产量的最大值为2010年,其值为897313吨,粮食总产量的最小值为2001年,其值为126544吨;
Through the investigation of the application of nitrogen, phosphorus and potash fertilizer and the total grain output in Shuozhou in the past 30 years, it was found that the maximum value of nitrogen fertilizer application in the period from 1980 to 2010 was 33789 tons and the nitrogen application rate The minimum is 1982, the value of 11434 tons; the maximum amount of phosphate fertilizer application in 1994, the value of 16118 tons, the minimum phosphorus fertilizer application in 1981, its value is 3579 tons; the maximum amount of potassium fertilizer In 2004, its value was 7,114 tons, the minimum amount of potash fertilizer applied was 1981, and its value was 49 tons. The maximum value of total grain output in 2010 was 897,313 tons, and the minimum value of total grain output was 2001 Year, its value is 126,544 tons;