辽宁省阜新地区土壤养分状况调查与花生配方施肥研究

Research on Soil Nutrient Status Survey and Formula Fertilization of Peanut in Fuxin Region of Liaoning Province

[目的]探讨辽宁省阜新地区花生配方施肥方案。[方法]对辽宁省阜新地区农田土壤0~20 cm土层pH、有机质、碱解氮、速效磷、速效钾、交换性钙含量进行调查分析。[结果]结果表明,调查的10个乡镇农田的土壤养分含量差异较大,褐土平均pH 6.2,微酸性,风沙土平均pH 5.8,偏酸性。褐土有机质平均含量接近中等水平,有40%地区能达到中等水平。风沙土有机质平均含量普遍极低;褐土碱解氮平均含量处于中等水平。风沙土碱解氮平均含量极低;褐土有效磷平均含量处于中等水平,风沙土有效磷平均含量较低;褐土速效钾平均含量接近中等水平,20%地区达到中等水平,风沙土速效钾平均含量较低。褐土和风沙土交换性钙含量丰富,20%乡镇含量略高。[结论]根据不同区域土壤养分调查分析结果制定了该地区花生4 500 kg/hm^2产量的施肥标准。

[Objective]The aim was to explore formula fertilization scheme.[Method] The pH, organic mailer, alkali-hydro nitrogen, available phosphorus and available potassium, exchangeable calcium contents of 0 - 20 em soil layer farmland soil in Fuxin of Liaoning province were investigated. [Result] The results showed that： soil nutrient contents surveyed 10 townships farmland were quite different, and the average pH value of cinnamon was 6.2, with slightly acid. The average pH value of sandy wind was 5.8, with acid. Cinnamon average organic matter content closed to the middle level, and 40% of the region achieved a moderate level. Average organic matter content of sand soil was generally low; average alkali-hydrolyzale nitrogen content of cinnamon was in the middle level. Average nitrogen content of sand soil was extremely low： average effective phosphorus content of eimmmon in the middle level; average potassium content of cinnamon closed to the middle level, and 20% of the region to reached the medium level, and effective potassium content of cinnamon was low. The exchangeable calcium contents of sand soil and cinnamon were in rich, and 20 percent of township eontent was slightly higher. [Conclusion] The fertilization standard of peanuts in this area with yeild of 4 500 kg/hm2- was formulated ,according to soil nutrient investigation analysis results of ditterent area.