Agronomical and physiological aspects of ammomium and nitrate nutrition of plants

abonos nitrogenados ammonia ammoniac caracteres de rendimiento composante de rendement crop yield fertilisation fertilizer application fisiologia vegetal ingredientes ingredients linum mathematical models nitrate nitrates nitratos nitrogen fertilizers nutrition des plantes plant nutrition plant physiology plant soil relations relaciones planta suelo relation plante sol rendement des cultures rendimiento de cultivos triticum yield components zea mays