The Response of CO2 Flux to Soil Warming, Manure Application and Soil Salinity

Abstract

In this research effect of different soil types (normal and saline), farmyard manurenorms (2 ton/ha - 4 ton/ha), manure application techniques (surface and subsurface) and soiltemperature levels (20-25°C, 25-30°C, 30-35°C, 35-40°C, 40-45°C and 45-50°C) were examined ofthe soil CO2 flux on the pots at the laboratory conditions. According to obtained results, soil type (ST),manure norm (MN), manure application technique (MAT) and soil temperature (T) values changedCO2 flux. CO2 flux value of saline soil condition smaller than the normal soil condition. As anexpected result, increased the manure amount increased the CO2 flux from soil to atmosphere.However, CO2 flux on the condition that subsurface manure application was less than surface manureapplication. CO2 flux values at the high soil temperatures were more than low soil temperatureconditions. According to the interaction (T*ST, T*MN and T*MAT) results were not statisticallysignificant. Soil CO2 flux were affected by gradually increasing of temperature.