...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Agricultural Sciences >Effectiveness of granular matrix sensors in different irrigation treatments and installation depths
【24h】

Effectiveness of granular matrix sensors in different irrigation treatments and installation depths

机译：颗粒基质传感器在不同灌溉方式和安装深度下的有效性

获取原文
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Continuous monitoring of soil moisture content plays a key role in irrigation scheduling and yield formation. This study was conducted to derive the technique and efficiency of application of granular matrix sensors (GMSs) in a sprinkler irrigation system of maize (Zea mays L.). Two irrigation (a2 = 60%- 100% of field capacity (FC), a3 = 80%-100% of FC) treatments were imposed during two growing seasons (2010, 2012) and compared with rainfed control plots (a1). GMSs are used as an indirect method for monitoring soil water status at two depths (b1 = 15 cm and b2 = 30 cm) in order to make a decision on when to irrigate. The sensors used in this study were calibrated using a mass-based gravimetric method. In both growing seasons, irrigation treatment and installation depths have a significant influence (P<0.01) on soil water content. Sensors have shown a satisfactory response to wetting and drying periods in irrigation scheduling at 30-cm depth. Yet, due to variability of weather conditions, a slow response to wetting and drying was recorded in periods with intensive rainfall events (2010) and drought conditions with frequent irrigation intervals (2012).
机译：持续监测土壤水分在灌溉计划和产量形成中起着关键作用。进行这项研究以推导在玉米（Zea mays L.）洒水灌溉系统中应用颗粒矩阵传感器（GMS）的技术和效率。在两个生长季节（2010年，2012年）进行了两次灌溉（a2 =田间持水量（FC）的60％-100％，a3 = FC的80％-100％），并与雨养控制区比较（a1）。 GMS被用作间接方法来监测两个深度（b1 = 15 cm和b2 = 30 cm）的土壤水状况，以便决定何时灌溉。本研究中使用的传感器已使用基于质量的重量分析法进行了校准。在两个生长季节中，灌溉处理和安装深度对土壤含水量都有显着影响（P <0.01）。在深度为30 cm的灌溉计划中，传感器已显示出对湿润和干燥时期的令人满意的响应。然而，由于天气条件的变化，在降雨密集的时期（2010年）和干旱频繁的灌溉间隔期（2012年），人们对潮湿和干燥的反应较慢。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号