نتایج جستجو برای: humin
تعداد نتایج: 158 فیلتر نتایج به سال:
Attributing the start of peat growth to an absolute timescale requires dating bottom deposits overlying mineral sediment, often called basal . Peat initiation is reflected in stratigraphy as a gradual transition from sediment increasingly organic material, up where it peat. So far, varying criteria have been used define peat, resulting divergent approaches date initiation. The lack universally ...
Many studies tested different feed additives, among these additives, humic substances (HS) have been used in livestock and poultry diets. Humic substances commonly present in nature as they are created from the organic matter decomposition, and are normally found in the soil and natural water. Active components of HS consist of humic acid (HA), humus, ulmic acid, fulvic acid, humin and certain ...
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