| 健宝（Jumbo）生长及营养成分动态研究 |
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| 引用本文： | 杨恒山,曹敏建,张瑞富,李凤山.健宝（Jumbo）生长及营养成分动态研究[J].中国农学通报,2004,20(2):69-69. |
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| 作者姓名： | 杨恒山 曹敏建 张瑞富 李凤山 |
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| 作者单位： | 1. 内蒙古民族大学农学院,通辽,028042
2. 沈阳农业大学农学院,辽宁沈阳,110161 |
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| 摘 要： | 健宝是近年来引入我国适于农田种植的新型牧草。在内蒙古西辽河平原种植株高可达350cm-360cm，株高增长速率最大达5.50cm/d,单株干物质积累速率最大值为5.3g/d，最大LAI达14.72，LAI>5的持续日数长达90d之多。粗蛋白质含量与株高负相关达极显著水平（r=-0.9894），粗蛋白质含量（%）与株高（cm）线性回归方程为：y=21.9853-0.0543x；粗纤维含量与株高正相关达极显著水平（r=0.9765），粗纤维含量（%）与株高（cm）线性回归方程为：y=16.1915+0.0404x。生长季内干草产量持续增加 ，鲜草产量及粗蛋白质产量后期略有下降。
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| 关 键 词： | 健宝 生长分析 营养成分 |
Study on the Dynamic Characteristics of Growth and Nutritive Compositions in Jumbo |
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| Yang Hengshan,Cao Minjian,Zhang Ruifu,Li Fenshan.Study on the Dynamic Characteristics of Growth and Nutritive Compositions in Jumbo[J].Chinese Agricultural Science Bulletin,2004,20(2):69-69. |
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| Authors: | Yang Hengshan Cao Minjian Zhang Ruifu Li Fenshan |
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| Institution: | (1.Department of Agronomy,Inner Mongolia University for Nationalities,Tongliao 028042 China;
2. .Department of Agronomy,Shenyang Agriculture University, Shenyang 110161, China) |
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| Abstract: | Jumbo was introduced into China in 1999.It was suited to planting in farmland in Xiliaohe Plain.The mean of plant height could reach 350cm-360cm and the maximum increasing rate of plant height appeared with 5.50cm/d. The maximum rate of dry matter accumulation of single plant came to 5.3g/d. It’s maximum LAI was 14.72 and the period of LAI>5 lasted more than 90 days. The rate of stalk weight to leaf weight lasted increasing.The trend of rate of fresh weight to dry weight appeared a single peak and the rates were smaller in later than in former. There was significantly negative correlation with r=-0.9894 between crude protein(%) and plant height(cm),while significantly positive correlation with r=0.9765 between crude fiber(%) and plant height(cm).The liner regression equations could be respectively expressed as: y=21.9853-0.0543x; y=16.1915+0.0404x. The hay yield continuously increased while the fresh yield and crude protein yield lightly droped in later growing period. |
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| Keywords: | Jumbo Analysis of growth Nutritive composition |
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