soil humus

The distribution of Soil Humus in black soil aggregates under incubation

培养条件下土壤腐殖质在黑土团聚体中的分布

The sizes of humus soil from top to down changed conversely, decreasing first and then increasing.

腐殖质层从上至下的粒径变化是先减小后增大.

Effects of Field Located Fertilization on the Contents and Characteristics of Soil Humus Fractions

田间定位施肥对土壤腐殖质组分数量与特性的影响

In ABC soil, the uppermost zone of soil , containing humus ; topsoil.

位于 上层 土和岩床之间的一层土壤.

But these soil are dig the natural humus that come from inside the forest earth.

但这些土壤都是从森林中挖来的天然腐殖质土.

Earthworms consume large amounts of soil, and produce a rich humus, perfect in texture.

蚯蚓吃下大量土壤，排出肥力丰富、物理结构理想的腐殖质。

Study on the properties of soil humus under various cropping systems

不同连作、轮作复种下土壤腐殖质性质的研究

Elementary Exploration of Separation, Extraction and Structural Analysis of Soil Humus

土壤腐殖质的降解及其结构

Drying oven digestion method for determining the organic carbon of soil humus

电热干燥箱恒温加热法测定土壤腐殖质的含碳量

Effect on humus acid carbon of soil.

对土壤腐殖酸碳的影响。

Effects of long-term localized fertilization on soil humus combining form in sheltered vegetable field

长期定位施肥对保护地土壤腐殖质结合形态的影响

It is generally believed that including the organic matter, the humus induced the soil particles aggregating by the way as a cementing agent, and that it come true through the "bridging" effect of the polyacrylamide ( PAM).

一般认为，土壤有机质中的腐殖质作为胶结剂使土粒凝聚，而聚丙烯酰胺（PAM）通过搭桥效应来实现。

The top layer of a soil profile; usually contains humus.

土壤层中的顶层；通常含有腐殖土。

The lack of humus and the excessive leaching make this soil almost useless for agricultural purpose.

缺少腐殖质和过度淋滤使这种土壤对农业几乎无用.

Effect of Several Microorganisms on the Formation of Soil Humus On the Formation of Rights

几种微生物对土壤腐殖质形成的作用

Loosen soil humus zone multi-birth, and shoots the best quality.

多腐殖质的松土地带出生的, 笋质最好.

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

The association of pesticide residues with soil humus and its environmental significance

农药与土壤腐殖物质的结合残留及其环境意义