| 山西白羊草灌丛草地牧草产量动态研究 |
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| 引用本文： | 杨桂英,王印魁.山西白羊草灌丛草地牧草产量动态研究[J].草业科学,1995,12(5):1-4. |
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| 作者姓名： | 杨桂英 王印魁 |
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| 作者单位： | 山西农业大学动物科学系，山西省牧草工作站，忻州地区水保研究所 |
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| 摘 要： | 对山西白羊草灌丛草地牧草产量动态进行了研究，经３年的定位研究其结果表明，白羊草灌丛草地牧草产量的季节动态规律较稳定，各年度动态曲线均呈单峰型，高峰值出现在８月份，峰期后牧草产量下降较缓慢。牧草营养物质的变化，生长前期粗蛋白质含量高随生育期进展而逐渐减少，粗纤维含量则相反，粗蛋白质产量高峰期在８月，这与干草产量的峰值正好吻合，此时正是该类草地利用的最佳时期。
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| 关 键 词： | 牧草产量 营养成分 白羊草灌丛草地 |
THE DYNAMIC OF HERBAGE YIELD OF BOTHRIOCHLOA ISCHAEMUM SHRUB GRASSLAND IN SHANXI |
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| Yang Guiying.THE DYNAMIC OF HERBAGE YIELD OF BOTHRIOCHLOA ISCHAEMUM SHRUB GRASSLAND IN SHANXI[J].Pratacultural Science,1995,12(5):1-4. |
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| Authors: | Yang Guiying |
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| Abstract: | The dynamic of herbage yield of Bothriochloa ischaemum shrub grassland in Shanxi was researched bythree vear's location study. The result showed that the seasonal dynamic was stabler. The curve every yearwas unimodal.The peak value appeared in August,the decrease of the yield was slower after the peak.Thechange of nutritive contents in herbage and crude protein was high in the early stage of herbage growth and decrease with the growth and development.Crude fibre was just opposite to crude protein. The high- yieldseason of crude protein was in August.This tallies with the high yield season of hay. This season was the best period to use herbages. |
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| Keywords: | Herbage yield dynamic nutritive content B ischaemum shrub grassland |
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