水资源与水工程学报Issue(6)：202-206,5.DOI:10.11705/j.issn.1672-643X.2015.06.38
硅藻土对上海潮土和黄泥土耕作性能改良的试验研究
Experiment on improvement of farming property of Shanghai calcareous soil and yellow soil by diatomite
摘要
Abstract
The paper used diatomite to carry out the experiment for two kinds of agricultural soils in Shang -hai.According to different diatomite volume ratios ,it studied the influence of diatomite on the consistency index, water stable aggregate content and densification performance of calcareous soil and yellow soil .Ex-periment indicated that the correlation coefficients between diatomite contents with andplastic limit and liq -uid limit are 0.981* and 0.971* respectively , and the influence of diatomite on plastic limit and liquid limit with the content of toviscosity polymer soil is inversely proportional ;Diatomite can dramatically in-crease the content of macro aggregate with the soil particle size greater than 0.25 mm of two kinds of soils;Diatomite can dramatically improve the optimum water content of two kinds of soils and reduce the maxi -mum dry density , and the correlation coefficients are 0.993*and 0.999**respectively .Therefore , diatom-ite can improve looseness and water retention performance of agricultural soil in Shanghai region .关键词
硅藻土/塑限/液限/最大干密度/最优含水率/水稳定性大团聚体Key words
diatomite/plastic limit/liquid limit/maximum dry density/optimum water content/macro ag-gregate body of water stable分类
农业科技引用本文复制引用
璩继立,赵冬雪..硅藻土对上海潮土和黄泥土耕作性能改良的试验研究[J].水资源与水工程学报,2015,(6):202-206,5.基金项目
诺华上海实验室科研项目 （）
