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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (14): 17-22.doi: 10.11924/j.issn.1000-6850.2011-3120

所属专题： 农业气象

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

气象因子对北京地区不同秋眠等级苜蓿秋季刈割后再生高度的影响

高菲 卢欣石   

  • 收稿日期:2011-10-25 修回日期:2012-01-14 出版日期:2012-05-15 发布日期:2012-05-15
  • 基金资助:

    国家科技支撑计划子课题“不同生态区域优良牧草品种优化配置及丰产栽培技术研究”

Effect of Meteorological factors on fall mowing height of Alfalfa with Different Fall Dormancy in Beijing

  • Received:2011-10-25 Revised:2012-01-14 Online:2012-05-15 Published:2012-05-15

PDF (PC)

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摘要：

为了研究气象因子对不同秋眠等级苜蓿秋后再生性能的影响，采用完全随机区组设计，研究了美国11个标准对照秋眠等级苜蓿品种秋季刈割后再生高度与气象因子的关系。结果表明：北京地区各秋眠等级的苜蓿在秋后刈割两周后再生高度便出现显著差异，各秋眠等级苜蓿植株再生高度的变化与三个气象因子的剩余效应较小，说明其他因子对苜蓿秋季刈割后植株再生高度的影响并不显著，因此可将积温、光照时数及降水量作为研究苜蓿秋眠性的主要影响因子。其影响程度依次为积温＞光照时数＞降水量。积温和光照时数对苜蓿秋季刈割后再生高度的影响最大。积温对再生高度的影响以直接效应为主，两者呈显著的正相关关系；光照时数和降水量均通过积温对再生高度产生正效应，而其对再生高度的直接影响为负效应。

关键词: 黑龙港区, 黑龙港区, 小麦玉米, 农艺节水技术, 评价

Abstract:

In order to study the effect of meteorological factors on different fall dormancy alfalfa after regeneration performance influence, using a completely randomized block design of the United States, 11 standard control fall dormancy alfalfa Varieties in autumn cutting regeneration relationship with meteorological factors. The results showed that: In Beijing area each fall dormancy alfalfa cutting in autumn two weeks after regeneration appeared significant differences, different fall dormancy alfalfa plant regeneration of height change and three meteorological factors of residual effect is smaller, descriptions of other factors on alfalfa fall cutting plantlet regeneration of high impact is not significant, it can be accumulated temperature, photoperiod and precipitation on fall dormancy of alfalfa as the main factor of influence. Its effects are accumulated temperature> sunshine time > precipitation. The accumulated temperature and photoperiod on alfalfa fall cutting height has the greatest effect on regeneration after. Effects of accumulated temperature on regeneration to direct effects, there is a significant positive relationship; light hours and precipitation by accumulated temperature on the regeneration of highly positive effects, and its regeneration the direct effects of negative effect.