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农学学报

农学学报 ›› 2012, Vol. 2 ›› Issue (11): 12-16.

• 植物保护 • 上一篇    下一篇

影响恶性杂草谷莠种子萌发特性的环境因素研究

周汉章 薄奎勇 赵宇 侯升林 王新玉 贾海燕 李顺国 吕芃 刘恩魁 宋银芳   

  • 收稿日期:2012-08-11 修回日期:2012-09-15 出版日期:2012-11-20 发布日期:2012-11-20
  • 基金资助:

    河北省科技支撑计划项目“广谱型谷田专用除草剂;农业部公益性行业科研专项“牧区饲草饲料资源开发利用技术研究与示范”（20120304201）

Studies on the Influence on Seed Germination Characteristics of a Vicious Weed Species, Giant Foxtail by the Environmental Factors

  • Received:2012-08-11 Revised:2012-09-15 Online:2012-11-20 Published:2012-11-20

PDF (PC)

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摘要：

为了优化谷莠种子萌发、出苗的最适条件，研究解决谷田谷莠子严重为害的问题。采用正交试验和软件SPSS 18.0的LSD法，以谷莠子出苗数目为考核指标，对谷莠子预处理、覆土深度、土壤温度、土壤含水量等影响因素进行比较试验。结果表明，4个实验因素对谷莠种子萌发特性均具有重要影响。明确了谷莠子出苗的最优方案：谷莠子预处理3天、覆土深度0.5 cm、土壤温度32℃、土壤含水量15%。该研究的最适条件与谷子播后苗前遭遇中雨即受谷莠子严重为害的实际情况相符；避免于中雨之前播种谷子，就能有效防控谷莠子严重为害。

关键词: 潮土, 潮土, 有机物料替代, 土壤可溶性有机碳/氮, 土壤肥力

Abstract:

To optimize the optimal conditions of Giant foxtail (S. faberii Herrm.) seed germination and seedling emergence, study and solve the problem of serious damage of Giant foxtail. Using the orthogonal test and the software SPSS 18.0 LSD method, to Giant foxtail emergence number as the evaluation index, the Giant foxtail pretreatment, sowing depth, soil temperature, soil moisture content influence factors such as the comparison test. Results showed that, four experimental factors on seed germination characteristics of Giant foxtail all had important influence. Clear Giant foxtail of seedling emergence the optimal scheme: Giant foxtail pretreatment 3 days, sowing depth 0.5 cm, soil temperature 32℃, soil moisture content 15% 32℃. The study of the optimum conditions and millet sowing after seedling before encountering moderate rain namely the Giant foxtail serious damage consistent with the actual situation; to avoid moderate rain before sowing millet, effective prevention and control of serious damage of Giant foxtail.