An abandoned petroleum well which had been exploited for about twenty years in Songyuan city of Jilin Province,China,was selected to study the compositions and characteristics of soil humus using revised humus composition method and Simon-Kumada method.
5 m处进行多点采样,应用腐殖质组成修改法和Simon-Kumada法,分别研究了上述长期不同程度石油污染土壤的全土及不同结合形态腐殖质组成。
Through analyzing nine soil samples collected from Gaoligongshan Nature Reserve,the humus composition,the contents of trace elements and the correlation were studied.
通过对9个采自高黎贡山国家级自然保护区土样的测定分析,对该保护区森林土壤的腐殖质组成、微量元素含量及其相关性进行了研究。
The experiment was carried out to evaluate effects of covering wheat straw in apple orchard and apricot orchard on soil humus composition, microflora and soil enzyme activities.
在杏园和苹果园覆盖麦草,研究其对土壤腐殖质组成、微生物区系及土壤酶活性变化的影响。
Studies on the Role of Microorganism in the Formation and Transformation of Humus;
微生物在土壤腐殖质形成与转化中作用的研究
The Study on the Effect of Microorganism in the Formation and Structure of Soil Humus;
微生物对土壤腐殖质形成及结构的影响研究
The Study on Formation and Transformation of Soil Humus under Special Incubation Condition;
特定培养条件下土壤腐殖质形成与转化的研究
Effect of CO_2 Partial Pressures on Formation and Transformation of Soil Humus;
CO_2和O_2浓度对土壤腐殖质形成与转化的影响
Lignin Biodegradation and Its Relationship with Humus Formation in Composting;
堆肥中木质素的生物降解及其与腐殖质形成关系的研究
"and by causing organic material to rot, they speed up the formation of humus. "
B.它们使有机物腐烂，从而加速腐殖质的形成。
The humus properties and mineral composition of clay have the distinct features of zonality.
腐殖质性质及矿物组成具有明显的地带性烙印。
Dynamic changes of different soluble humus zinc in chicken manure
鸡粪腐解过程不同溶解性腐殖物质结合形态锌的动态
Effects of Different Fertilization Treatments on Humus Composition of Black Soil
不同施肥处理对黑土腐殖质组成的影响
Changes of Humic Components during Agricultural Waste Composting
农业废弃物堆肥过程中腐殖质组成变化
degraded humus carbonate soil
退化腐殖质碳酸盐土
true humus calcareous soil
典型腐殖质碳酸盐土
humus clay complex
腐殖质 粘粒复合体
Structural Change of Protein during Tofu Gelation Process
豆腐凝胶形成过程中蛋白质变化研究
EFFECTS OF LONG-TERM CORN STALK APPLICATION ON THE COMPOSITION AND PROPERTIES OF HUMUS IN BLACK SOIL AGGREGATES
长期施用玉米秸杆对黑土团聚体中腐殖质组成和性质的影响
Effects of Corn Stalk Application on the composition and Optical properties of each component of humus in Soil Aggregates
添加玉米秸秆培养对土壤团聚体中腐殖质组成和性质的影响
The Evolution of Humus and Organic Nitrogen Forms and Its Relation of N Supply Capacity in Sheltered Soil;
设施土壤腐殖质和有机氮形态演变及其与供氮能力关系的研究
Effect of Long-term Fertilization on the Contents of Combined Formation of Humus in the Protected Cultivation
长期施肥对保护地土壤腐殖质总量及各形态之间比值的影响