Humic substances in soil and crop sciences. Selected readings : Proceedings of a symposium cosponsored by the International Humic Substances Society.
Referencias.
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| Main Authors: | , , , , , |
|---|---|
| Format: | Texto biblioteca |
| Language: | eng |
| Published: |
Madison : USA : American Society of Agronomy; Soil Science Society of America,
1990
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| Subjects: | Análisis del suelo, Humus, Nitrógeno, Organismos del suelo, |
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