Sulphur mineralization of cattle manure (CM) and green waste compost (GWC) added to six agricultural soils with different chemical properties was monitored over 11 wk in a laboratory incubation experiment. The SO42-S released from GWC treated soils were higher than in soils amended with CM and in the controls. The percentages of mineralized S were always higher in GWCtreated soil (1.3%-8.5%) than in CM-treated soil (0.9%-3.8%). In three of the Six soils, particularly for CM, an inimobilization of sulphur was observed. Cattle manure stimulated the arylsulphatase activity at a greater extent than green waste compost. The arylsulphatase activity seems to be controlled by the level of the inorganic S present in soil.
Arylsulphatase activity during the S mineralization in soils amended with cattle manure and green waste compost
SAVIOZZI, ALESSANDRO;CARDELLI, ROBERTO;
2006-01-01
Abstract
Sulphur mineralization of cattle manure (CM) and green waste compost (GWC) added to six agricultural soils with different chemical properties was monitored over 11 wk in a laboratory incubation experiment. The SO42-S released from GWC treated soils were higher than in soils amended with CM and in the controls. The percentages of mineralized S were always higher in GWCtreated soil (1.3%-8.5%) than in CM-treated soil (0.9%-3.8%). In three of the Six soils, particularly for CM, an inimobilization of sulphur was observed. Cattle manure stimulated the arylsulphatase activity at a greater extent than green waste compost. The arylsulphatase activity seems to be controlled by the level of the inorganic S present in soil.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
