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对新乡市、辉县市、原阳县等7县(市)2006~2008年测土施肥项目化验的10 683个土壤样品进行统计分析。结果表明:新乡市土壤各养分平均含量分别为有机质16.08 g/kg、全氮1.02 g/kg、有效磷16.26 mg/kg,分别较1987年增加62.16%、50.00%和190.36%,速效钾与1987年基本持平,充分显示新乡市实行有机与无机相结合施肥方针的正确性。针对全市土壤养分现状,提出了还田、稳氮、控磷、增钾的施肥指导方针及相应的施肥对策。
A total of 10 683 soil samples from soil testing and fertilization project tests in 7 counties (cities) of Xinxiang City, Huixian City and Yuanyang County from 2006 to 2008 were analyzed statistically. The results showed that the average contents of soil nutrients in Xinxiang were 16.08 g / kg organic nitrogen, 1.02 g / kg total nitrogen and 16.26 mg / kg available phosphorus, respectively, up 62.16%, 50.00% and 190.36% Year basically flat, fully demonstrated the implementation of the combination of organic and inorganic fertilizers in Xinxiang the correctness of the policy. According to the status quo of soil nutrients in the city, put forward the fertilizing guidelines and the corresponding fertilization measures for returning to soil, stabilizing nitrogen, controlling phosphorus and increasing potassium.