humic acids 第1页

SPECTROSCOPIC CHARACTERISTICS OF SOIL ORGANIC MATTER IN DIFFERENT EVALUATING THE MOLECULAR WEIGHT AND CHARACTERISTICS OF \=HUMIC ACIDS GRADATIONS USING GEL FILTRATION \=AND RADIOISOTOPE TRACER TECHNIQUE THE DISTRIBUTION REGULARITY OF SOIL HUMUS CONTENTS IN TYPICAL GRASSLAND SOIL IN XINJIANG Physiological effects of humic acids on drought resistance of wheat A Review for Effect of Organic Substances on the Availability of Cadmium in Soils N, P and K adsorption and desorption characteristics of humic acids made from the airslake-coal THE INACTWATION OF BACILLUS THURINGIENSIS PARASPORAL CRYSTALS BY ULTRAVIOLET ANDTHE PROTECTIVE ACTION OF HUMIC ACIDS Phosphorus adsorption of iron oxideshumic acid compounds Study on relations between Kaschin-Beck disease and content of selenium bounded by humic acids in soil in Northeast China