【摘要】 为探讨不同肥料对桉树(Eucalyptus spp.)生长及林地土壤微生物和酶活性的效应,采用复混A肥料、复混B肥料、液态有菌肥和液态无菌肥等4种肥料对巨尾桉(E. erophylla)作追肥试验,为广西桉树生产提供参考依据。结果表明,追肥6个月后的桉树幼林高生长以复混A肥料最好,胸径生长以液态无菌肥最好。复混A肥料增强了林地4种酶活性,同时真菌数量在所有处理中最高。本研究结果初步表明,复混A肥料在促进桉树生长方面优于其他供试肥料,但其效果还需要长期定位试验验证。更多还原

【Abstract】 In order to explore effects of different fertilizers on growth of Eucalyptus plantation and soil microorganism and enzyme activities in forest land,compound fertilizer A,compound fertilizer B,liquid bacterial fertilizer and liquid aseptic fertilizer were used to topdress Eucalyptus erophylla which could provide reference for the production of Eucalyptus in Guangxi. Results showed that compound fertilizer A was the best for height and liquid aseptic fertilizer was the best for DBH in young Eucalyptus forest after 6 months of topdressing. The four enzymatic activities in forest lands fertilized by compound fertilizer A strongly enhanced,and fungi quantity was the largest. Therefore,compound fertilizer A was superior to other tested fertilizers in promoting the growth of Eucalyptus,but its effect also needed long-term tested verification.更多还原