PENGKAYAAN MIKROBA KONSORSIA PADA UREA BERLAPIS ARANG AKTIF DAPAT MEMPERCEPAT PENURUNAN INSEKTISIDA ALDRIN DI LAHAN SAWAH

Abstract

Abstract- The challenge for the Indonesian nation in the future is globalization which demands a very tight competition. Three factors that support this are increased efficiency, productivity and quality of agricultural products. The use of pesticides has contributed most to the increase in agricultural production since 1970. The amount of pesticides circulating in Indonesia from year to year increases. In 2006 there are as many as 1336 registered formulations, in 2008 the amount of pesticide formulations are 1702, in 2010 there are as many as 2048 formulations, and in 2011 as many as 2247 formulations. Microbial enrichment is expected to accelerate the degradation of residual insecticides aldrin . The research is conducted at the Experiment Jakenan Station February 2012 to September 2012. The soil which is used as the planting medium is brought from the village of the District Sukamenak Rawagempol Wetan, Karawang. The experiment was conducted in field scale microplot with lysimeter, and using a randomized block design ( RBD ) 3 replications 6 fertilizer treatments ( control , prill urea , urea activated carbon maize cobs ( UAATJ ) , urea activated carbon coconut shell ( UAATK ) , urea activated carbon cob corn + microbes ( UAATJM ) , urea activated carbon coconut shell + microbes ( UAATKM ). The plants used are rice varieties inpari 13. The insecticide residue analysis is performed in the Residu Bahan Agrikimia (RBA) laboratory Balingtan. The purpose of this study is to obtain urea technology with activated carbon enriched with insecticide degrading microbes that can degrade POPs aldrin insecticide residues. microplot scale research results by using a lysimeter showed the highest reduction of residual insecticides aldrin in the treatment of urea -coated coconut shell activated carbon enriched microbial consortia that degrade POPs is 36,17 % . It is suspected that coconut shell activated carbon microbial favored as its home and the microbes utilize carbon sources of aldrin as food for growth.

Keywords: microbial enrichment , decreased aldrin , paddy field