The Effect of Paraquat, Difenoconazole Butylphenylmethyl Carbamate (BPMC) to CO2 and CH4 Emission, and phenolic Acids in Peat Soil

Abstract

Pesticides are widely used in agriculture land, including agricultural land with peat soil. The Study concerning pesticide and CO2 emission has not been done in Indonesia. The objectives of this study were to analyze the effect of paraquat, difenoconazole, butylphenylmethyl carbamate (BPMC) on CO2 and CH4 emission and concentration of phenolic acids in peat soil. The study was conducted at the Laboratory of Soil Chemistry and Fertility, Department of Soil Science and Land Resource, IPB. Soil Sample was collected in District of Pulang Pisau, Central Kalimantan. Peat soil was treated with paraquat, difenoconazole dan butylphenylmethyl carbamate (BPMC) and incubated for 24, 48, 96, 120 and 168 hours. The results showed that the application of pesticides at the recommendation rates increased CO2 emission compared to that of control. Concentration of total phenolic acid of all treatments decreased sharply compared to that of initial data where the concentration of total phenolic acids of treated ones were lower than those of control except BPMC. The results suggested that CO2 emission were from Carbon of degraded phenolic acid and pesticides. The application of pesticides with recommendation rate decreased CH4 emission compared to that of control.