不同类型饲用玉米植株养分含量及积累与分配规律研究  

Research on the Contents,Accumulation and Distribution Law of Nutrients in Different Types of Feeding Maize Plant

作　　者：殷旭红[1] 郝水源[1] 王忠 

机构地区：[1]河套大学,内蒙古巴彦淖尔015000 [2]巴彦淖尔市农垦局,内蒙古巴彦淖尔015000

出　　处：《安徽农业科学》2008年第12期4921-4923,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]为青贮玉米的高产优质栽培与利用提供理论与技术支持。[方法]试验以哲单7号、农大647和中北410为供试品种,采用随机区组排列,重复3次。[结果]哲单7号、中北410和农大647的粗蛋白最大积累速率分别在散粉期、灌浆初期和大喇叭口期,分别为0.90、1.89和0.48 g/d。在全生育期,哲单7号的植株粗蛋白含量在5.86%-10.65%,中北410的植株粗蛋白含量在4.95%-10.09%,农大647植株粗蛋白含量在6.37%-8.51%。粗脂肪的最大积累速率依次为：中北410〉哲单7号〉农大647。在全生育期,哲单7号的粗脂肪含量在1.86%-4.67%,拔节期最高（4.67%）;中北410和农大647的粗脂肪含量分别在1.03%-3.78%和1.44%-6.23%,苗期最高（3.78%和6.23%）。[结论]不同类型玉米的粗脂肪积累量与积累速率不同,植株粗蛋白含量也呈不同的变化趋势。[Objective] The purpose of the research was to supply theoretical and technical support for high-yield and good-quality cultivation and utilization of silage maize.[Method] In the field experiment with Zhedan 7,Nongda 647 and Zhongbei 410 as tested varieties,the randomized block arrangement with 3 repeats was used.[Result] The maximum accumulation rates of crude protein in Zhedan 7,Zhongbei 410 and Nongda 647 were 0.90,1.89 and 0.48 g/d respectively.in pollinating period,early filling period and period of big bugle respectively.During the whole growth period,the crude protein content in plant of Zhedan 7 was in 5.86%～10.65%,that of Zhongbei 410 was in 4.95%～10.09% and that of Nongda 647 was in 6.37%～8.51%.The maximum accumulation rates of crude fat in order were Zhongbei 410 〉 Zhedan 7 〉 Nongda 647.During the whole growth period,the content of crude fat in Zhedan 7 was in 1.86%～4.67% and highest in elongation period（4.67%）;that in Zhongbei 410 and Nongda 647 were in 1.03%～3.78% and 1.44%～6.23% respec tively.and highest in seedling period（3.78% and 6.23%）. [Conclusion] The accumulation amounts and rates of crude fat in different types of maize were different and their contents of crude protein in plant also showed different change trend.

关 键 词：青贮玉米 营养成分含量 积累量 

分 类 号：S513[农业科学—作物学]