The cement improved soil is a kind of important fill material used widely in construction of railway subgrade.
水泥改良土是高速铁路路基工程中广泛使用的一种重要填料。
It also found strong environmental benefits such as improved soil fertility, better retention of water and resistance to drought.
研究还发现，有机农业还能带来极大的环境效益，比如提高土壤的肥力、更好地保持水土、防止干旱。
The results indicated that green coverings improved soil physical characteristics, soil bulk density decreasing by 5.68% and the soil porosity increasing by 6.15%.
结果表明：生草可改善土壤物理性状，使土壤容重平均降低5.68%，总孔隙度提高6.15%。
The input of NPK as either organic manures or chemical fertilizers not only greatly improved soil productivity but also was of benefit to the soil as a carbon sink.
试验结果表明：以有机肥或以化肥形式配合施用NPK不但可以极大提高土壤生产力，而且有益于增加土壤有机碳储量。
The problem of improved soil is important for high-speed railway subgrade.
改良土问题是高速铁路路基的重要内容。
Besides, applying fertilizer improved soil microbial biomass c, however, divergence between NPK and Ntreatment is not marked.
施用肥料能提高土壤微生物量碳的含量，但NPK处理与N处理差异不大。
Single organic fertilizer, improved soil quality, but the nutrient supply for crops not in time, and resulting in lower production;
单施有机肥，土壤质量改善明显，但对作物养分供应不及时，造成产量较低；
Together with the improved soil a composite ground is formed, and the components and structure of the original -ground have been changed.
还可与被改良土层一起形成复合地基，改变原地基土的成分和结构。
Besides these, lime application improved soil phosphorus nutrition, which was one of the main causes that increased the yield of broad bean.
此外，施用石灰改善了供试土壤的磷营养，磷营养差异是蚕豆产量差异的主要原因之一。
The results obtained from the loading tests and the settlement observations show that the improved soil foundation can meet the engineering needs well.
通过载荷试验及沉降观测等成果分析，处理后的地基能够满足工程要求。
The authors also try to improve grain composition of soil by replacing cement soil with some sand to reduce influence of environmental change to strength of cement improved soil.
本文还通过在改良土中置换一定比例的砂土来改善土料的颗粒级配，以降低循环失水对水泥土强度的影响。
The authors also try to improve grain composition of soil by replacing cement soil with some sand to reduce influence of environmental change to strength of cement improved soil.
本文还通过在改良土中置换一定比例的砂土来改善土料的颗粒级配，以降低循环失水对水泥土强度的影响。
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