共 50 条
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- [34] CONTENT AND COMPOSITION OF HUMUS IN SOILS UNDER INTENSE AGRICULTURAL USE SOVIET SOIL SCIENCE, 1980, 12 (03): : 306 - 317
- [35] Carbon content of humus in some freshwater wetland soil of Bangladesh BANGLADESH JOURNAL OF BOTANY, 2003, 32 (01): : 5 - 9
- [36] CHANGES IN THE CONTENT AND QUALITY OF SOIL HUMUS AS DEPENDING ON ORGANIC MANURING ROSTLINNA VYROBA, 1987, 33 (12): : 1233 - 1242
- [37] ADDITIONAL DATA ON SPECTROPHOTOMETRIC METHOD FOR DETERMINING HUMUS CONTENT IN SOIL SOVIET SOIL SCIENCE-USSR, 1967, (08): : 1055 - &