Effects of Using Hyacinth Organic Fertilizer on Characteristics of Soil CO_2 Emission

The effects of using hyacinth organic fertilizer or poultry organic fertilizer on the soil CO2 emission were comparatively studied under the conditions of 55% field water capacity and applying equal quantitive fertilizer.The results showed that the emission and cumulative emission of soil CO2 in hyacinth organic fertilizer treatment were obviously smaller than those in poultry organic fertilizer treatment.The cumulative emission of soil CO2 in the organic fertilizer treatment showed obviously positive correlation with the potential mineralized carbon content and the speed of organic carbon mineralization.