| 不同时期刈割对黑麦草生产性能、蛋白质含量及光合效率的影响 |
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| 引用本文： | 姜华,毕玉芬,何承刚.不同时期刈割对黑麦草生产性能、蛋白质含量及光合效率的影响[J].云南农业大学学报,2003,18(2):149-152. |
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| 作者姓名： | 姜华 毕玉芬 何承刚 |
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| 作者单位： | [1]甘肃农业大学草业学院，甘肃兰州730070 [2]云南农业大学动物科技学院，云南昆明650201 |
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| 摘 要： | 对不同生育期连续刈割的多花黑麦草的株高、分蘖数、茎叶比、产草量、根量、粗蛋白质含量、净光合速率进行了研究:开花期刈割处理的蛋白质产量极显著高于另两个处理的蛋白质产量;开花期刈割处理的干草产量略高于孕穗期刈割处理的干草产量,而孕穗期刈割处理的鲜草产量高于开花期刈割处理的鲜草产量,但差异都不显著;欲获得持续、稳定、高产,黑麦草最佳刈割时期应为孕穗期。
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| 关 键 词： | 黑麦草 刈割 产草量 |
| 文章编号： | 1004-390X(2003)02-0149-04 |
| 收稿时间： | 2002-9-18 |
Effect of Different Timing Cutting on Production, Crude Protein Content and Photosynthetic Rate of Rye Grass |
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| JIANG Hua,BI Yu-fen,HE Cheng-gang.Effect of Different Timing Cutting on Production, Crude Protein Content and Photosynthetic Rate of Rye Grass[J].Journal of Yunnan Agricultural University,2003,18(2):149-152. |
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| Authors: | JIANG Hua BI Yu-fen HE Cheng-gang |
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| Institution: | (1.Pratacultural College, Gansu Agricultural University,Lanzhou 730070,China;2.College of Animal Science and Technology, Yunnan Agricultural University,Kunming 650201,China;3.College of Tobacco Sciences, Yunnan Agricultural University, Kunming, 650201 China) |
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| Abstract: | Height, tiller number, ratio of stem to leaf, grass yield, root weight, crude protein content and net photosynthetic rate of rye grass at different cutting timing were measured. Protein yield of cutting treatment on blooming stage was significantly higher than the others'. Between cutting treatment on blooming stage and boot stage, as far as hay yield, the former was higher than the latter, but fresh grass yield, the latter was higher than the former, and their difference were not significant. The optimal cutting timing was at boot stage in order to gain sustainable, steady, high yield of rye grass. |
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| Keywords: | rye grass cutting grass yield |
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