Fertilizer application with small grain seed at planting.

abonos nitrogenados agentes nocivos agua del suelo application rates cultivos de grano eau du sol ensemencement espacement espaciamiento facteur nuisible grain crops injurious factors lit de semence methode methods nitrogen fertilizers seed seedbeds semence semillas semillero siembra soil water sowing spacing textural soil types tipos texturales de suelos type de sol textural