【摘要】 为研究发酵猪粪对果园土壤的改良作用,采集了洛川县10个乡镇施用发酵猪粪果园和未施猪粪果园土壤24份,分别测定了pH、电导率,有机质、全氮、有效氮、全磷、速效磷、全钾、速效钾等。结果表明,果园施用发酵猪粪以后,土壤pH降低1.14%,导电率降低了64.69%(P<0.05),有机质增加4.81%,全氮提高11.11%,有效氮提高94.49%(P<0.05),全磷提高32.88%(P<0.05),速效磷提高271.03%(P<0.01),全钾降低0.99%,速效钾提高67.23%(P<0.01)。发酵猪粪施入果园可明显降低土壤pH、导电率,增加土壤中有效氮、全磷、速效磷、速效钾含量,有利于改善果园土壤,提高苹果产量和质量。更多还原

【Abstract】 To study the effect of fermented pig manure on soil improvement in orchard,24 soil samples from orchards applied and not applied fermented pig manure in 10 towns of Luochuan county were collected to measure pH,conductivity,organic matter,total nitrogen,available nitrogen,total phosphorus,available phosphorus,total potassium and available potassium.The results show that the pH of soil with fermented pig manure was reduced by 1.14% than the soil without pig manure;the electrical conductivity was reduced by 64.69%(P<0.05);organic matter increased by 4.81%;total nitrogen increased by11.11%;available nitrogen increased by 94.49%(P<0.05);total phosphorus increased by 32.88%(P<0.05);available phosphorus increased by 271.03%(P<0.01);total potassium decreased by 0.99%;and available potassium increased by 67.23%(P<0.01).These results indicate that fermented pig manure could improve the quality of orchard soil by reducing pH,conductivity,and increase organic matter,total nitrogen,available nitrogen,total phosphorus,available phosphorus,total potassium in soil,which could improve the quality and yield of apples.更多还原