La biofumigación y el metam sodio como alternativas al uso de bromuro de metilo: Efecto sobre el control de malezas y las características químicas del suelo

the purpose of this research was to evaluate the effect of the methan sodium (0,125 l/m2) and biofumigation (chicken manure, 8 kg/m2; wheat bran 1,5 kg/m2 and pine needle 30 dm3/m2) as alternative methods for methyl bromide on weed control and chemical characteristics of the soil in carnation crops. the type and number of the weeds and chemical soil characteristics were evaluated before the treatment and 30 days after the carnation crop was implanted. the results show that all the treatments were efficient for the control of weeds in number and species. only biofumigation with chicken manure and wheat bran were effective to induce changes on the organic matter content and the electric conductivity of the soil. in addition, chicken manure improved the water retention capacity and the nutrients of the soil.