论文部分内容阅读
总结粮饲兼用型、多叶型和棕色中脉型3种类型青贮玉米杂交种的特点。介绍青贮玉米产量和饲料营养价值的评价指标和方法,比较不同类型的青贮玉米种质资源的饲料营养价值和目前美国市场上最新的青贮玉米杂交种的农艺性状和品质性状。2010年美国德克萨斯州青贮玉米区域参试杂交种生物产量和干物质产量分别达78 210 kg/hm2和27 370 kg/hm2,淀粉含量平均为40.9%,中性洗涤纤维平均36.4%,总可消耗营养平均为75%。
Summarize the characteristics of three types of silage maize hybrids, that is, the combination of grain and food, multilobed and brown midrib. The evaluation indices and methods of silage corn yield and feed nutritional value were introduced. The nutritional value of different types of silage corn germplasm resources and the agronomic traits and quality traits of the latest silage corn hybrids in the United States were compared. In 2010, the yield and dry matter yield of Texas Texas silage maize hybrids were 78 210 kg / hm2 and 27 370 kg / hm2 respectively, the average starch content was 40.9%, the average neutral detergent fiber was 36.4% Total dietary nutrition averaged 75%.