| 阿鲁科尔沁旗紫花苜蓿刈割晾晒期降水适宜性分析 |
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| 引用本文： | 安娜.阿鲁科尔沁旗紫花苜蓿刈割晾晒期降水适宜性分析[J].现代农业科技,2021,24(24). |
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| 作者姓名： | 安娜 |
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| 作者单位： | 赤峰市气象局 |
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| 摘 要： | 以阿鲁科尔沁旗2013年种植的紫花苜蓿为对象,分析2015-2018年紫花苜蓿适宜刈割期与实际刈割期差异及近30a(1989-2018)逐日降水保证率曲线。结果表明, 适宜刈割期与实际刈割期之间存在较大的差异,其中第二茬推迟最为明显。第二茬紫花苜蓿刈割期降水风险最高,第一茬、第三茬次之,第四茬风险最低。第一茬紫花苜蓿应在6月上半月完成刈割,第二茬紫花苜蓿应气象预报选择合适时机刈割晾晒或直接加工青储饲料,第三、四茬紫花苜蓿刈割期选择上有较宽的范围。
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| 关 键 词： | 紫花苜蓿 刈割晾晒期 降水保证率 |
| 收稿时间： | 2021/3/19 0:00:00 |
| 修稿时间： | 2021/3/19 0:00:00 |
Analysis of Precipitation Factor Suitability in the Cutting Drying Period of Alfalfa in the Ar Horqin Banner |
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| Abstract: | The studies on the alfalfa that planted in 2013 in the ar horqin banner,the difference between the suitable and the actual cutting period of alfalfa during 2015-2018,and the daily precipitation guarantee rate curve of nearly 30A (1989-2018) were analyzed.The results showed that, there was a great difference between the suitable and the actual cutting period, and the delay of the second harvested was the most obvious.The second harvested of alfalfa had the highest risk of precipitation, the risk of the first and third harvested was higher, the fourth harvested has the lowest risk.The first alfalfa was quite feasible to finish cutting and drying in the first half of June. The second alfalfa should be cutting and drying or directly ensilaged according to the weather forecast. The cutting period of the third and fourth alfalfa had a wide range. |
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| Keywords: | Alfalfa Cutting drying period Precipitation guarantee rate |
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