Pre-emergence weed control in crops of high value by means of a false seedbed techniques, weed harrowing, and flaming

agricultura alternativa agriculture alternative allium cepa alternative agriculture application date burning danemark date d'application denmark dinamarca espacement espaciamiento etapas de desarrollo de la planta field experimentation harrowing hersage hortalizas (plantas) lit de semence plant developmental stages quema rastreo rendement rendimiento seedbeds semillero spacing vegetable crops weeding yields