Bt [Bacillus thuringiensis] corn production in PH [Philippines] now a billion-peso industry

adoption de l'innovation agriculteur agricultores bacillus thuringiensis biotechnologie biotechnology biotecnologia cooperativas cooperative cooperatives crop yield diffusion de l'information diffusion of information farm income farmers filipinas genetically modified organisms innovation adoption philippines rendement des cultures rendimiento de cultivos revenu de l'exploitation technology transfer transfert de technologie zea mays