| 1. | 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。 |
| 2. | Determination of humus fractionation in forest soil
森林土壤腐殖质组成的测定 |
| 3. | The influences of reinforcing cement soil on soil humus
土体腐殖质对水泥土固化的影响 |
| 4. | Characteristics of humus in maturing salt - affected soil
盐渍土熟化过程中腐殖质特性的研究 |
| 5. | Relative colour degree of humus acid
腐殖酸的相对色度 |
| 6. | Clay - humus complex
黏粒腐殖质复合体 |
| 7. | Continental humus soil
大陆腐殖土 |
| 8. | Dark humus soil
暗色腐殖质土 |
| 9. | Study on the enhanced flocculation of the natural humus by polydiallyldimethylammonium chloride
阳离子聚电解质强化絮凝去除活性染料的研究 |
| 10. | It is usually found in the loose soil under grass or under a thick layer of humus
这种虫通常栖息在草地的松土里，或在厚厚的腐质层里生活。 |
