共 50 条
- [42] THE IMPORTANCE OF HUMIC SUBSTANCES IN TOMATO PRODUCTION FRESENIUS ENVIRONMENTAL BULLETIN, 2021, 30 (4A): : 4155 - 4162
- [43] THE NATURE AND COMPOSITION OF COAL HUMIC ACIDS ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1980, 180 (AUG): : 48 - FUEL
- [44] ON THE NATURE OF THE PARAMAGNETIC CENTERS OF HUMIC ACIDS DOKLADY AKADEMII NAUK SSSR, 1988, 299 (02): : 410 - 414