现在在饲料调制工艺中广泛应用先进的干草调制方法(人工通风和压缩),但这种方法要损失一部分营养物质。减少损失的有效措施之一是缩短刈割的牧草在田间的存放时间。为了研究浓度为22.5—24％的氨水的利用效果,作者进行了试验,并和人工通风法进行了比较。刈割孕蕾期的苜蓿在田间风干至 Advanced methods of hay modulation (artificial aeration and compression) are now widely used in feed preparation processes, but this method involves the loss of a portion of the nutrients. One of the effective measures to reduce losses is to reduce the storage time of mowed pastures in the field. In order to study the effect of using ammonia at a concentration of 22.5-24%, the authors conducted experiments and compared them with the manual ventilation method. Mowing the buds of alfalfa in the field to dry to