【摘要】 对北方农区苜蓿及玉米青贮 +小黑麦种植模式的经济效益调查分析表明 ,干物产量成本以玉米青贮最低 ,为 15 5 .5元 / t,小黑麦最高 ;从整年看 ,青贮玉米 +小黑麦干草或青贮的干物成本和苜蓿干草相近 ,2 34.5～ 2 80 .9元 / t;但从营养成分看 ,苜蓿粗蛋白成本仅 1.5 4元 / kg,显示出明显优势 ,加之营养转化的间接效益 ,苜蓿的经济效益是较好的。并指出 ,提高产量和延长苜蓿草场的利用年限是降低其生产成本的有效方法更多还原

【Abstract】 The costs of alfalfa and common rye + corn silage production we re analyzed. The results showed that the cost of corn hay was as lower as 155.5 RMB/t because of high yield. However, that of corn + common rye hay performed a similar trend as alfalfa hay which was as high as 234.5～280.9 RMB/t. From the c ost of alfalfa hay 1.54 RMB/kg, it was regarded as a predominant and well econom ic forage. To increase hay yield and lengthen the utilizing years were effective methods to reduce the cost of alfalfa production.更多还原