首页 > 分享 > 红壤地区三种母质土壤熟化过程中有机质的变化特征

红壤地区三种母质土壤熟化过程中有机质的变化特征

花匠小妙招
2025-09-25 06:07

于寒青, 孙楠, 吕家珑, 高菊生, 徐明岗, 王伯仁. 红壤地区三种母质土壤熟化过程中有机质的变化特征[J]. 植物营养与肥料学报, 2010, 16(1): 92-98. DOI: 10.11674/zwyf.2010.0113

引用本文: 于寒青, 孙楠, 吕家珑, 高菊生, 徐明岗, 王伯仁. 红壤地区三种母质土壤熟化过程中有机质的变化特征[J]. 植物营养与肥料学报, 2010, 16(1): 92-98. DOI: 10.11674/zwyf.2010.0113

YU Han-qing, SUN Nan, L Jia-long, GAO Ju-sheng, XU Ming-gang, WANG Bo-ren. Organic matter changes in three parent soils with different long-termfertilizations in red soil regions of southern China[J]. Journal of Plant Nutrition and Fertilizers, 2010, 16(1): 92-98. DOI: 10.11674/zwyf.2010.0113

Citation: YU Han-qing, SUN Nan, L Jia-long, GAO Ju-sheng, XU Ming-gang, WANG Bo-ren. Organic matter changes in three parent soils with different long-termfertilizations in red soil regions of southern China[J]. Journal of Plant Nutrition and Fertilizers, 2010, 16(1): 92-98. DOI: 10.11674/zwyf.2010.0113

红壤地区三种母质土壤熟化过程中有机质的变化特征

于寒青1,2, 孙楠2, 吕家珑1, 高菊生2, 徐明岗2, 王伯仁2 1.

西北农林科技大学,陕西杨凌 712100;

中国农业科学院农业资源与农业区划研究所,农业部作物营养与施肥重点开放实验室,北京 100081

计量文章访问数: 03388 HTML全文浏览量: 0400 PDF下载量: 01481 出版历程收稿日期: 2008-12-08 刊出日期: 2010-01-24

Organic matter changes in three parent soils with different long-termfertilizations in red soil regions of southern China

Northwest Agricultural and Forestry University,Yangling,Shaanxi 712100,China;

Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Nutrition and Fertilization,Ministry of Agriculture of China,Beijing 100081,China

摘要

摘要: 在湖南祁阳进行了25年的生土熟化长期定位试验，研究花岗岩、第四纪红土和紫色砂页岩三种典型母质土壤在6种熟化方式下耕层（0—20 cm）土壤有机质演变特征。结果表明，不施肥处理土壤有机质含量25年没有显著变化；不施肥秸秆还田能够缓慢增加土壤有机质含量，三种母质（花岗岩、第四纪红土和紫色砂页岩）土壤的有机质含量年平均增加量分别为0.32、0.20和0.17 g/kg；施氮、磷、钾肥及施氮、磷、钾肥并秸秆还田，施有机物稻草及施有机物稻草并秸秆还田，三种母质土壤有机质含量均显著增加，其中以施氮、磷、钾肥并秸秆还田处理增加最大，年平均增加量分别为0.48、0.39和0.35 g/kg，25年后土壤有机质含量分别增加了5.6、2.8和3.1倍。根据土壤有机物的投入量、分解状况及作物生长等综合分析得出，花岗岩母质土壤有机质含量的增加速率大于紫色砂页岩土壤和第四纪红土土壤；有机无机肥配施和秸秆还田是快速提高南方红壤地区不同母质土壤有机质含量的重要措施。

关键词: 秸秆还田 / 长期施肥 / 有机质 / 生土熟化 / 红壤

Abstract: Soil organic matter changes in the 0-20 cm soil layer of Granite red soil, Quaternary red clay soil and Purple sandy shale soil were studied by using a long-term field experiment from 1982 to 2007 at Qiyang long-term raw soils anthropogenic mellowing field experiment site. There were 6 fertilizer treatments in the experiment. Results indicated that there are not any significant increases of soil organic matter contents in the no-fertilizer treatments, and there are slow increases of soil organic matter in the no-fertilization-straw returned treatments and annual increasing rates of the three soils are were 0.32, 0.20 and 0.17 g/kg, respectively. There are significant increases of soil organic matter contents in the chemical fertilization treatments, chemical fertilization-straw returned treatments, dry rice straw treatments and dry rice straw-straw returned treatments, especially in the chemical-straw returned treatment, and the annual increasing rates of the three soil are 0.48, 0.39 and 0.35 g/kg in the dry rice straw-straw returned treatments. In general, the increasing rate of Granite red soil is higher than that of Quaternary red clay soil and Purple sandy shale soil, respectively. This result suggests that the combined application of organic and chemical fertilizers, and straw returned is an effective measure of increasing soil organic matter.

HTML全文

参考文献(0)

施引文献

资源附件(0)

计量文章访问数: HTML全文浏览量: PDF下载量: 出版历程收稿日期: 2008-12-08 刊出日期: 2010-01-24