Acid dissolution and metal ion complexing reactions of the organic acids accounted for their stimulation of soil phosphorus release.
有机酸影响土壤磷的释放是酸溶解作用和与金属离子络合反应共同作用的结果。
Effects of leaching with simulated acid rain and low molecular weight organic acids on exchangeable bases of red soil were investigated using undistributed soil columns.
采用原状土柱进行模拟淋溶实验，比较研究了模拟酸雨和几种低分子量有机酸对红壤交换性盐基的影响。
Test results indicated that the liquid limit of artificial organic soil increased exponentially, whose plastic limit increased of linearly with the humic acid content;
试验结果表明，人工有机质土的液限以指数形式增长，塑限则呈线性形式增加；
A pot experiment was conducted to study the effects of different humic acid materials on organic combined mercury and total mercury contents in soil and the biological availability of soil mercury.
通过盆栽试验研究了不同腐殖酸物质对土壤有机结合态汞、全汞含量及土壤汞生物有效性的影响。
Ginger specific humic acid fertilizer increased the soil organic matter content, total nitrogen content, available nitrogen content, available phosphorus content.
生姜专用腐植酸复混肥提高了土壤有机质含量，土壤全氮、碱解氮和速效磷含量。
Some plants evolved in areas wither the soil is highly acidic. Acid soil usually develops when there is a lot of organic build-up in moist soils over many years.
一些植物生长在酸性很高的土壤里，酸性的土壤通常形成是当土壤中有机物越来越多，土壤潮湿，经过多年形成的。
Among the organic compounds, citric acid had a better capacity in dissolving soil Mn.
有机化合物中，柠檬酸溶出土壤锰的能力明显大于葡萄糖。
Organic matter often influences the effect of cement solidified soil, humic acid as the main composition of organic was chosen to study the effect on solidification.
针对有机质对疏浚淤泥固化处理效果产生的影响，研究有机质的主要成分腐殖酸对水泥固化的影响。
It was shown that the organic content, the specific weight of soil particle and the liquid limit decreased but the plastic limit increased with the increase of the concentration of acid.
试验表明：酸浓度的增加导致有机含量减小，土粒比重减小，塑限增大、液限减小；
Application of sequential extraction technique in soil se into five forms: water soluble, exchangeable, acid soluble (carbonate and manganese oxides), organic matter bound and residual.
应用连续浸提技术将土壤中Se划分为5种形态：水溶态、可交换态、酸溶态(碳酸盐及铁锰氧化物结合态)、有机物结合态、残渣态。
Application of sequential extraction technique in soil se into five forms: water soluble, exchangeable, acid soluble (carbonate and manganese oxides), organic matter bound and residual.
应用连续浸提技术将土壤中Se划分为5种形态：水溶态、可交换态、酸溶态(碳酸盐及铁锰氧化物结合态)、有机物结合态、残渣态。
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