典型黑土pH值变化对营养元素有效态含量的影响研究  

Effect of Soil pH Value on the Effective Content of Nutrient Elements in Typical Black Soil

作　　者：于君宝[1] 刘景双[1] 王金达[1] 齐晓宁[1] 王洋[1] 

机构地区：[1]中国科学院东北地理与农业生态研究所,吉林长春130012

出　　处：《土壤通报》2003年第5期404-408,共5页Chinese Journal of Soil Science

基　　金：国家重点基础发展规划项目(G19999011804-05)

摘　　要：采用室内培养实验的方法,控制典型黑土样品的酸碱度值,探讨典型黑土中Cu、Zn、Mn、P和Fe等营养元素有效态含量与pH值的关系。结果表明:pH值变化0.5个单位左右,有效态铜含量变化约0.5～1倍;有效态锰含量变化约3～5倍;有效态锌含量变化9～15倍之多;有效态磷含量变化约1.5～2倍;有效态铁含量变化约3～4倍。说明精确掌握土壤的酸碱度值对于土壤诊断、合理施肥、提高作物产量和实现土地的可持续利用都具有重要的理论与实践意义。Based on the method of incubation test by controlling the pH of typical black soil samples, the relationship of soil pH and the effective content of nutrient elements:Cu, Zn, Mn, P and Fe was studied. The results show that following pH changing 0.5 unit, the ratio of high value to the low value of the effective Cu content is about 0.5 to 1 in typical black soil, the ratio of effective Mn content is about 3 to 5, the ratio of effective Zn content is about 9 to 15, the ratio of effective P content is about 1.5 to 2, and the ratio of effective Fe content is about 3 to 4. The findings Suggest that it is important fo know Soil pH values in terms of proper fertilization, high yield and sustainable use of Land.

关 键 词：典型黑土 pH值 营养元素 有效态含量 影响因素 酸碱度值 土壤诊断 施肥 作物产量 

分 类 号：S153.4[农业科学—土壤学] S153.6[农业科学—农业基础科学]