CHEN Gao-qi,FU Wa-li,ZHANG Ting,et al.Comparative Study on Nutrient Characteristics of Several Crops’ Rhizosphere and Non-rhizosphere Soils in Lime Soil Area—A Case Study of Zhongliang Mountain, Chongqing City[J].Research of Soil and Water Conservation,2014,21(01):104-109,116.
石灰土地区几种作物根际与非根际土壤养分特征对比研究——以重庆市中梁山为例
- Title:
- Comparative Study on Nutrient Characteristics of Several Crops’ Rhizosphere and Non-rhizosphere Soils in Lime Soil Area—A Case Study of Zhongliang Mountain, Chongqing City
- 分类号:
- S158.3
- 摘要:
- 以重庆市中梁山石灰土地区为研究区，选择莴笋、红菜苔、白菜、瓢儿菜和桔子5种不同的作物，通过野外采样和室内实验分析的方法，分别测定了5种作物的根际与非根际土壤的全氮、全磷、全钾、水解氮、速效磷、速效钾、有机质的含量以及土壤pH值，并进行了对比分析。结果表明，根际与非根际土壤的全氮、全磷、全钾、水解氮、速效磷、速效钾、有机质和pH值之间均表现出显著的差异性（p<0.05）。这5种作物的养分含量除了桔子树的根际土壤速效磷出现亏缺外，其余4种作物根际土壤的全氮、全磷、全钾、水解氮、速效磷以及速效钾都高于非根际土壤，不同作物出现了不同程度的富集现象。另外，根际土壤的pH值均低于非根际土壤；根际土壤有机质含量均高于于非根际土壤。
- Abstract:
- Taking the lime soil area in Zhongliang Mountain, Chongqing City as a case, five kinds of crops-Lactucapsativap L.var.asparaginap Bailey, Brassica compestris, Brassica pekinensis, Brassica narinosa, Citrus reticulata were selected, by way of field sampling and laboratory analysis to investigate the nutrient contents, namely, total nitrogen, hydrolyzable nitrogen, total phosphorus, available phosphorus, total potassium and available potassium of their rhizosphere and non-rhizosphere soils, and the pH value and the content of organic matter. The results show that there are significant differences between nutrient contents, the pH values and the contents of organic matter in rhizosphere and non-rhizosphere soils(p<0.05). Among the five crops, only the available phosphorus of orange trees’ rhizosphere soil is insufficient, and nutrient contents of the other crops’ rhizosphere soils are all higher than non-rhizosphere soil, having enrichment phenomenon in various degrees. Besides, the five kinds of crops’ pH values of rhizosphere soils are all lower than their non-rhizosphere soil and the organic matter contents of rhizosphere soils are all obviously higher than those of the non-rhizosphere soils.
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备注/Memo
收稿日期:2013-03-30;改回日期:2013-05-29。
作者简介:陈高起(1989-),男,河南上蔡人,硕士,主要研究方向为土地利用与土壤环境。E-mail:chengaoqi2012@126.com
通讯作者:傅瓦利(1954-),女,重庆人,博士,教授,主要从事土壤地理和土地利用研究。E-mail:fuwali@swu.edu.cn