Cagayan [Philippines] techno guide for corn

asia asie cereales cereals crops cultivos cultivos de grano economic plants economic sectors extension extension activities feed crops feed grasses filipinas glumiflorae grain crops gramineae gramineas graminee grasses industrial crops monocotyledons oil crops philippines plantas plantas azucareras plantas feculentas plantas forrajeras plantas industriales plantas oleaginosas plante plante de culture plante industrielle plants production professional services secteur tertiaire sector terciario service service professionnel services servicios servicios profesionales starch crops sugar crops tertiary sector vulgarisation agricole zea mays