南京市场上几种营养土的质量指标分析  

The Analysis of Quality about Several Kinds of Nutrient Soil at Nanjing Market

作　　者：朱玥[1] 周伟伟[1] 周佳玉 丁爱芳[1] Zhu Yue et al(School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, China)

机构地区：[1]南京晓庄学院环境科学学院,江苏南京211171

出　　处：《安徽农学通报》2016年第22期67-68,84,共3页Anhui Agricultural Science Bulletin

基　　金：2014年江苏省大学生创新重点项目

摘　　要：从南京市场上采集5种品牌的营养土,分别测定了这5种营养土的p H、有机质、碱解氮、速效磷及种子发芽指数。实验结果表明,5种营养土的p H7.11~8.76,为中性和偏碱性土壤;有机质含量33.4~122.7g/kg,在土壤肥力分级标准中为二级及以上水平;碱解氮含量范围为103.1~119.5 mg/kg,为三级水平;速效磷含量范围为17.9~21.7mg/kg,为三级及以上水平;所有营养土发芽指数都超过50%,即认为基本没有毒性。Five kinds of nutrient soil were sampled from Nanjing market. Their p H,organic matter,and available nu-trients were analyzed. The results showed that the p H values of nutrient soil were 7.11~8.76,dominated by alkaline.The contents of soil organic matter were 33.4~122.7g/kg,being the second and above level according to soil fertilityclassification standard. The contents of alkali hydrolyzable N were 103.1~119.5 mg/kg,being the third level. Thecontents of available P were 17.9~21.7mg/kg,being the third and above level. Seed germination index was above50%,and this means there did not exist obvious toxicity.

关 键 词：营养土 P H 土壤肥力 酶活性 发芽指数 

分 类 号：S511[农业科学—作物学]