【摘要】 研究山东省长红枣主产区土壤养分丰缺状况,为制定山东省长红枣主产区科学、合理的施肥策略提供参考。在山东省长红枣主产区宁阳县、山亭区、邹城市选择54个典型果园,分别采集0-20cm、20-40cm土层样品进行土壤营养状况分析。结果表明,全省长红枣园土壤有机质含量较低,0-20cm、20-40cm土层有机质缺乏状况的比例为18.5%和77.8%;枣园N、P、K大量元素变异系数很大,表层土壤的变系数为73.4%、70%和75.4%;枣园土壤钙、镁、铜含量丰富,表层含量达到丰富的比例均为100%;土壤锰、锌含量中等,0-20cm、20-40cm土层达到中等及以上水平的比例,锰分别为77.7%和77.8%,锌分别为66.6%和44.4%;硼、钼含量处于低水平,表层含量处于缺乏状况的比例均为100%。枣园生产应因地制宜,建议增施有机肥及含硼、钼元素的肥料,合理施用氮肥,控磷、増钾,特别注意磷肥的施用。更多还原

【Abstract】 Soil nutrient fertility status is investigated to formulate a suitable fertilization strategy so as to help to raise its economic and environmental benefits. Soil samples from different layers( 0- 20 cm,20- 40cm)are collected from 54 Jujube yard producing areas located in Ningyang,Shanting and Zoucheng counties in Shandong province respectively. The content of soil organic matter is low at large,the deficiency rate of0-20 cm,20- 40 cm is 18. 5%,and 77. 8%,respectively. Moreover,the CV of Jujube yards soil N,P and K is high and the CV of surface soil is 73. 4%,70% and 75. 4%,respectively. Similarly,the concentrations of Ga,Mg and Cu in Jujube yards soil are too high,100% in surface soil above suitable content,respectively. The concentrations of Mn,and Zn in Jujube yards soil are too high,77. 7% % and 77.8% in 0- 20 cm soil above suitable content,66. 6% % and 44. 4% in 20- 40 cm soil above suitable content,respectively. However,the contents of B and Mo were low and the deficiency rate of B and Mo is100% in surface soil. It is suggested that more organic matter,B,Mo,rational application of N,P,K and less Cu fungicide shall be used in the tested jujube yards.更多还原