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首页> 外文期刊>Australian Journal of Crop Science >Spraying deposits using different nozzles and application volumes for pest management of cotton at reproductive stage
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Spraying deposits using different nozzles and application volumes for pest management of cotton at reproductive stage

机译:在繁殖阶段使用不同的喷嘴和施药量喷洒沉积物以控制棉花的害虫

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With the growing need for greater operational capacity, information about the effect of application volume and spray nozzles on the quality of pesticide application are essential to obtain greater efficiency in pest management in cotton crops. This study aimed to assess the effect of the spraying volume and nozzles on the deposition of spray solution on cotton crops at the reproductive stage. The treatments of the first experiment correspond to the 55, 67, 140 and 194 L ha -1 volumes obtained by variation of the displacement speed using the XR11004 flat fan nozzle. In the second assay the treatments corresponded to the applications of MGA9004 (hollow cone), XR11004 (flat fan), AIXR11004 (air induction flat fan) and CVIA04 (air induction hollow cone) nozzles with 120 L ha -1 . An artificial brilliant blue food dye (FD&C 1) was used as a tracer (2.5 g L -1 ) to determine the deposited volumes on the leaves of the upper, middle and lower third of cotton plants. The results showed that increase in the application volume contributed to obtain the larger deposits in the upper third of the cotton crop during its reproductive phase, especially up to 140 L ha -1 , but did not exhibit a significant increase of the deposition in the middle and lower thirds of the plants. The MGA9004, XR11004 and AIXR11004 nozzles provided the largest deposits in the three plant sectors. The flat fan nozzles resulted in greater uniformity of deposits in the upper and middle thirds of the plants.
机译:随着对更大操作能力的日益增长的需求,关于施用量和喷嘴对农药施用质量的影响的信息对于在棉花作物中提高虫害管理效率至关重要。这项研究的目的是评估喷雾量和喷头对生殖阶段棉花作物上喷雾溶液沉积的影响。第一个实验的处理对应于55、67、140和194 L ha -1体积,这些体积是通过使用XR11004扁平风扇喷嘴改变排量速度获得的。在第二次测定中,处理方法对应于具有120 L ha -1的MGA9004(空心锥形),XR11004(扁平风扇),AIXR11004(空气感应扁平风扇)和CVIA04(空气感应空心锥形)喷嘴的应用。使用人造亮蓝色食用染料(FD&C 1)作为示踪剂(2.5 g L -1),以确定棉株上,中,下三分之一的叶片上的沉积量。结果表明,施肥量的增加有助于在生育期,特别是在140 L ha -1以下,在棉花上部三分之一处获得较大的沉积量,但在中部沉积没有显着增加和三分之一的植物。 MGA9004,XR11004和AIXR11004喷嘴在三个工厂部门中提供了最大的沉积物。平扇形喷嘴使植物上部和中部三分之一处的沉积物更加均匀。

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