【作者】 张国印； 茹淑华； 孙世友； 王凌； 耿暖； 崔瑞秀；

【Author】 Zhang Guoyin~1,Ru Shuhua~1,Sun Shiyou~1,Wang Ling~1,Geng Nuan~1,Cui Ruixiu~2 (1.Institute of Agro-recourse and Environment,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050051,China; 2.Agricultural Bureau of Zhengding County,Hebei,050800 China)

【机构】 河北省农林科学院农业资源环境研究所； 河北省正定县农业局；

【摘要】 本研究采用长期定位试验的方法,开展了长期施肥对华北平原褐土土壤肥力以及作物产量的影响研究。试验结果表明单施氮肥的处理,冬小麦成熟期土壤硝态氮含量最高,明显增加对地下水硝酸盐污染的环境风险。施用磷肥或钾肥的处理土壤有效磷含量或有效钾含量显著增加。多年连续不施用磷肥或钾肥,土壤磷或钾的耗竭严重。施用锌肥的处理土壤有效锌含量显著提高。施用锰肥却对土壤有效锰含量无显著影响。以氮磷、氮磷钾、氮磷钾锰锌配合处理冬小麦籽粒产量最高。以氮磷钾锰锌配合夏玉米籽粒产量最高,其次为氮磷钾配合施用的处理。因此无论从产量还是保持土壤肥力,以及保护环境,氮磷钾锰锌配合和氮磷钾配合均是最佳选择。更多还原

【Abstract】 This study used a long-term experiment to research the effects of long-term fertilization on cinnamon soil fertility and crop yield of Northern China Plain.The results showed that the soil applied N alone still held high NO₃^--N after wheat harvesting,the followed arrival of the rainy season will increase the environmental risk of pollution to groundwater.Application of phosphate fertilizer and potash fertilizer increased the soil content of available P and K significantly.Continuously applied fertilizer without phosphorus or potassium,the soil had a serious depletion of P or K.Application of zinc fertilizer had soil available zinc content increased significantly.In order to increase yield,maintain soil fertility,and protect environment,Applied Nitrogen with phosphorous and potassium is the best choice in the northern China plain.更多还原