Factors and recovery of herbicide phytotoxicity on direct-seeded rice-(1)-Variation factors of phytotoxicity

abonos crecimiento croissance direct sowing engrais environmental factors facteur du milieu factores ambientales fertilizers fitotoxicidad growth herbicidas herbicide herbicides inhibition oryza sativa ph phytotoxicity semis direct siembra directa soil texture statistical methods temperatura temperature textura del suelo texture du sol