Ga. Iutinskaya et al., SPECIFICS OF HUMUS FORMATION IN IRRIGATED SOUTHERN CHERNOZEMS UNDER GREEN MANURE TREATMENT, Eurasian soil science, 27(2), 1995, pp. 111-120
The total content, group composition, molecular-mass characteristics,
sorption spectra, components of humic acids peripheral part were under
study in the irrigated southern chernozems. With green manure plowed
into the soil, the content of ''young'' humic acids with advanced peri
phery was found to increase, and this testifies to more active humous-
compounds neoformation. More active are these processes, when Melilotu
s alba is grown, and this plant may be recommended as the best green m
anure for irrigated southern chernozems.