The effect of caustic magnesite on the stomatal resistance and some indicators of spring barley productivity

agua del suelo caracteres de rendimiento chemical composition composante de rendement composition chimique contenido de agua en el suelo contenido de materia seca cultivos de primavera culture de printemps drought stress dry matter content eau du sol estoma fertilisation fertilizer application hordeum vulgare magnesium fertilizers plant water relations relaciones planta agua relation plante eau resistance to injurious factors soil water soil water content spring crops stomata stomate teneur en eau du sol variedades varieties yield components