A REVIEW OF HUMUS AND HUMIC ACIDS by T. L. Senn, Head, Department of Horticulture
نویسندگان
چکیده
De Saussure, in his famous work, "Recherches Chimiques Sur La Vegetation", devoted considerable attention to humus. He found that it is not a homogeneous substance, but that it consists of various complexes which can be readily removed. Thaer differentiated between "acid humus" or peat, formed with limited admission of oxygen, and "mild humus", formed in the presence of sufficient oxygen. Liebig spoke of "humus" as "a brown substance, easily soluble in alkalies, but only slightly soluble in water, and produced during the decomposition of vegetable matters by the action of acids or alkalies".
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تاریخ انتشار 2007