The effect of extended moist wilting and formic acid additive on the conservation as silage of two grasses differing in total nitrogen content

acide formique acido formico amidas amide amides ammonia ammoniac azote digestibilidad digestibility ensilado ensilage (produit) ensilage (traitement) ensilaje fanaison feed additives fertilizers formic acid lolium perenne marchitamiento nitrogen silage silage making wilting