摘要
玉米品种白马牙经追施不同量的氮肥(0、150、300kg尿素/hm2),收割后制成青贮玉米的CP含量就会不同,用该青贮玉米饲喂育成羊,观测增重情况.结果显示,施尿素300 kg/hm2组的增重显著(P<0.05),平均日增重是136.9 g,高于未施尿素的对照组,提高幅度达26.10%.
White house tooth, a maige strain, feritilized with different quantity of the nitrogenous during growth, was silaged, with its crude protein content being various. The silage-maige was fed to experimental lambs to of see weight gain. The result showed the urea silage-maize group （300kg/hm^2 ） had the best fodder conversion, with its 136.99 liveweight gain being much higher than other groups. The differences were significant （p〈0.05） compored with control groups.
出处
《河北北方学院学报（自然科学版）》
2005年第4期42-44,共3页
Journal of Hebei North University:Natural Science Edition
基金
河北省"十五"攻关课题(0110096)
关键词
氮肥
青贮玉米
羊
增重
Nitrogenous fertiliger
Silage-maize
Lamb
Weight gains
