草业科学2012，Vol.29Issue(1)：156-159,4.
添加丙酸和尿素对玉米青贮品质的影响
Effects of propionic acid and urea on the quality of whole-crop corn silage
摘要
Abstract
A trial was carried out to estimate the effects of proplonie acid and urea on the fermentation quality and chemical compositions of whole-crop corn silage. The treatments included the 0.3 % propionic acid, 0.5% urea, 0.3% propionic acid and 0. 5% urea and all corn were placed in sealed vacuum plastic bags and ensiled for 60 days. The results of this study showed that application of propionic acid decreased pH value, acetic acid and ammonia nitrogen content, and significantly increased the lactic acid content of silage corn （P〈0.05） when compared with control. The application of urea markedly improved the crude protein content of silage corn （P〈0.05）. The combination of propionic acid and urea further improved the fermentation quality of silage.关键词
全株玉米/青贮/丙酸/尿素/青贮品质Key words
whole-crop corn/silage/propionic acid/urea/silage quality分类
农业科技引用本文复制引用
臧艳运,王雁,顾雪莹,陈鹏飞,杨富裕..添加丙酸和尿素对玉米青贮品质的影响[J].草业科学,2012,29(1):156-159,4.基金项目
公益性行业 （）
“十二五”国家科技支撑计划课题 （）
