| 羊茅黑麦草和无芒雀麦叶片生长动态比较 |
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| 引用本文： | 常会宁 汤胜民. 羊茅黑麦草和无芒雀麦叶片生长动态比较[J]. 草业科学, 1996, 13(1): 8-10 |
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| 作者姓名： | 常会宁 汤胜民 |
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| 作者单位： | 北京农业大学草地研究所，黑龙江省畜牧兽医学校 |
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| 摘 要： | 根据植物种群生态学原理，利用组织物质循环技术，对羊茅黑麦草和无芒雀麦的叶片出现，伸长，枯萎和死亡动态进行了研究，结果表明，两种牧草累积总叶数和累积总叶长度均呈“Ｓ”型曲线规律，净绿化叶片数和净绿叶长度动态呈抛物线规律变化，叶片死亡数和叶枯萎长度在生长初期为零然后呈直线规律累积，据此，提出了通过调节刈牧时间，频率和利用间期，科学利用草地的刈牧制度。
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| 关 键 词： | 羊茅黑麦草 无芒雀麦 叶片生长 草地利用 |
COMPARISON OF DYNAMICS FOR LEAF GROWTH OF FESCUE/RYEGRASS AND SMOOTH BROMEGRASS |
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| ChangHuining,Xia Jingxin. COMPARISON OF DYNAMICS FOR LEAF GROWTH OF FESCUE/RYEGRASS AND SMOOTH BROMEGRASS[J]. Pratacultural Science, 1996, 13(1): 8-10 |
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| Authors: | ChangHuining Xia Jingxin |
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| Abstract: | The dynamics of leaves appearance,extension, senescence and death were studied with the method of tissue turnover based on the theory of plant population ecology.The results showed that the gross number and length showed sigmoid curve pattern,and the dynamic of net green leaves number and length was parabola.The leaf numbers of death and the length of withered leaves were none at the beginning of growth, then they accumulated in linear pattern.According to the above the paper has put forward adjusting the cutting time,frequency and using interval to scientifically utilize grazing and cutting of grassland |
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| Keywords: | Fescue/Ryegrass smooth bromegrass leaf growth mathematical model grassland utilization |
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