羊粪还田对巨峰葡萄园土壤理化性质的影响

为通过合理施用羊粪提高葡萄园土壤肥力,降低羊粪中氮、铁、铜等物质对环境的污染,以充分腐熟羊粪为基肥,设施入羊粪基肥20、40、60、80、100t/hm~2等5个处理,以不施羊粪基肥为对照(CK),研究羊粪还田对巨峰葡萄园土壤含水量、土壤p H值以及土壤全氮、速效磷和速效钾含量的影响。结果发现,与不施羊粪基肥的CK相比,羊粪还田处理可提高葡萄园土壤含水量,且随着施肥量增加土壤深层土壤蓄水能力增加;羊粪还田可降低葡萄园土壤pH值;羊粪还田条件下不同土层土壤全氮、速效磷和速效钾含量随施肥量的增加而增加;不同羊粪施肥量均可提高土壤有机质含量,且在不同土层中表现为随着施肥量的增加而增大,各土层在施入100t/hm~2羊粪时土壤阳离子交换值(CEC)达最大,0～15、15～30、30～45cm土层的CEC分别为15.62、14.70、12.25cmol/kg。

Effects of applying sheep manure on soil properties of kyoho vineyard

In order to improve the soil fertility of vineyard by rational application of sheep manure, and reduce the pollution of nitrogen, iron, copper and other substances in sheep manure to the environment, with fully decomposed sheep manure as the base fertilizer, the experiment, taking the soil without base fertilizer as the control check (CK), was set up by applying 20, 40, 60, 80 and 100 t/hm2 of base fertilizer respectively to study the influence of the sheep manure returing on the moisture, pH and as well as total nitrogen, available phosphorus and available potassium contents in the soil. The results showed that sheep manure returning could improve soil moisture, and the deep soil water storage capacity increased with the increment of fertilization amount. pH value of the soil decreased under sheep manure returning mode, while contents of total nitrogen, available phosphorus and available potassium in different layer were increased with the increment of fertilizing amount. Furthermore, sheep manure returning can improve the content of organic matter in the soil, which was increased in different soil layers with the increase of fertilizing amount. The cation exchange capacity (CEC) in each soil layer reached the maximum value (15.62, 14.70 and 12.25 cmol/kg respectively) when 100 t/hm2 of sheep manure was applied.