摘要： 通过田间条件下砂滤管试验,研究了不同膨润土施用量及有机物料对砂土土壤含水量和有机质含量的影响.结果表明,施用膨润土和有机物料能显著地提高砂土土壤含水量和有机质含量,且二者存在明显的交互作用,差异达极显著水平.施用膨润土能明显增加土壤有机质的累积量,说明在施用同样有机物料的前提下,施用膨润土可明显提高砂土土壤有机质含量.
关键词:
膨润土,
有机物料,
土壤含水量,
土壤有机质含量
Abstract: The ef fects of different level bentonite on the content of soil w ater and soil organic matter in the f ield are studied w ith the sandy sieve tube method. The result showed that the use of bentonite and organic matter could improve the content of sandy soil water and soil organic matter. T he analysis of variance showed a signif icant dif ference. The use of bentonite can increase the accumulat ions of soil organic mat ter, w hich indicates bentonite can improve soil organic mat ter content by using the same level of org anic matter as control.
Key words:
Bentonite,
Org anic matter,
Soil water content,
Soil organic mat ter content
中图分类号:
李吉进, 徐秋明, 倪小会, 安文焕, 刘广余. 施用膨润土对土壤含水量和有机质含量的影响[J]. 华北农学报, 2002, 17(2): 88-91. doi: 10.3321/j.issn:1000-7091.2002.02.019.
LI Jijin, XU Qiuming, N I Xiaohui, AN Wenhuan, LIU Guangyu. Effects of Bentonite on Content of Soil Water and Soil Organic Matter[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(2): 88-91. doi: 10.3321/j.issn:1000-7091.2002.02.019.