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对湖南省靖州县2008年测土配方施肥项目土壤检测结果与1979年第2次土壤普查结果进行了比较分析,结果表明,靖州县耕地中全氮、碱解氮、有效磷含量增加,有机质、速效钾含量减少,土壤酸化加剧,这与靖州县农民施肥习惯、耕作制度发生改变有关。据此提出了增施有机肥、推广测土配方施肥、石灰调酸和加强耕地质量保护等对策。
The soil test results of the soil testing and fertilization project in 2008 in Jingzhou County of Hunan Province were compared with the results of the second soil survey in 1979. The results showed that the contents of total nitrogen, available nitrogen and available phosphorus in cultivated land increased, Organic matter, available potassium content decreased, soil acidification aggravated, which is related to fertilization habits and farming systems of peasants in Jingzhou County. Accordingly, the countermeasures such as increasing organic fertilizer, promoting soil testing and formula fertilization, adjusting acidity of lime and strengthening quality protection of cultivated land were put forward.