The physical character of soil was also improved after covering straw. The soil bulk density was reduced. Field moisture capacity and porosity percentage were increased.
覆草后土壤的物理性状也得到改善，土壤容重降低、田间持水量和孔隙度提高。
But the low benefit of mono - cereal cropping structure is their main weak point which are unfavourable for providing plentiful agricultural products and improving the physical character of soil.
但生产内容单调，多数为纯粮型种植结构，经济效益不高，不利丰富社会产品和改善土壤物理性状。
Based on the character of high liquid limit soil improved by CON-AID stabilizing agent, the physical and mechanical properties and the strength change laws are studied.
针对高液限土的特点，采用掺入康耐土壤稳定剂，研究其物理力学性质和强度变化规律。
Soil basal respiration, soil biomass carbon, metabolic quotient are important indexes of soil microbiological, they relate to physical-chemical character of soil.
土壤微生物量碳、基础呼吸作用、土壤代谢商是表征土壤质量的重要指标，并且与土壤本身的理化性质有关。
Soil basal respiration, soil biomass carbon, metabolic quotient are important indexes of soil microbiological, they relate to physical-chemical character of soil.
土壤微生物量碳、基础呼吸作用、土壤代谢商是表征土壤质量的重要指标，并且与土壤本身的理化性质有关。
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