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:1 996年和 1 999年两次化验结果表明 ,阜新县土壤有机质平均含量为 1 30 5% ,全氮平均含量 0 0 89% ,碱解氮平均含量 1 0 0 91mg/kg ,速效磷平均含量 1 0 1 5mg/kg ,与 1 981年土壤普查时相比均为上升趋势 ;速效钾平均含量 74 4mg/kg ,呈下降趋势。耕地土壤碱解氮含量居中等水平 ,有机质、全氮、速效磷、速效钾含量均为中下等水平 ,其中速效钾含量下降明显。应大力推广平衡施肥 ,纠正偏施氮肥、不施或少施钾肥的习惯 ,增施有机肥 ,生产和研制配方专用肥。
The results of two tests in 1996 and 1999 show that the average content of soil organic matter in Fuxin County is 1305%, the average content of total nitrogen is 0.089%, the average content of alkaline hydrolysis nitrogen is 10091mg / kg, the average content of available phosphorus The content of 1 105 mg / kg, which was an upward trend compared with the soil survey in 1981, the average content of available potassium was 74 4 mg / kg, showing a decreasing trend. Soil alkali-hydrolyzable nitrogen content in cultivated land was at medium level. The contents of organic matter, total nitrogen, available phosphorus and available potassium were lower-middle and lower-middle levels, and the available-potassium content decreased obviously. We should vigorously promote the balanced fertilization, correct partial nitrogen fertilizer, no or less K fertilizer habits, organic fertilizer, production and development of formula fertilizer.