Respiratory activity of soils irrigated by water and by meatworks effluent: A note

摘要

A simple respiration technique has been used to measure the effects of long-term irrigation with pure water and with meat-freezing works effluent on the microbiological activity ot Lismore silt loam, a shallow soil of the Canterbury Plains. Irrigation with meat-freezing works effluent has produced marked increases in both the soil respiratory activity and the carbon mineralisation coefficient, compared with the control (dry) soils and with the soil irrigated with pure water. These results are discussed, and a possible reason for the large difference in the microbiological activities of the two control soils is given.