【摘要】 飘移是评价液体农药喷洒质量的重要指标。在影响喷雾飘移的因素中,喷头类型、喷头的大小(流量)和风速都有重要影响。分析它们对飘移的影响对于合理选择喷头和喷雾条件有重要意义。该文在试验的基础上,应用数学建模方法分析不同喷雾参数与飘移量之间的相关关系,并通过回归分析,确定它们对飘移量的作用程度,从而分离主要参数,为参数优化提供依据。研究结果说明,喷头类型、喷头大小和风速都对飘移有显著的影响,但作用强度不同,由强到弱依次为风速、喷头类型和大小。更多还原

【Abstract】 Spray drift is one of the most important indexes evaluating spray quality. Among spray parameters, nozzle type, size and wind speed are those most closely relating to drift. Investigation of their correlative features to drift would provide basic data for parameter optimization. The work involving in this study was the analysis of the correlation between drift and spray parameters by statistic method. Regression was used to weigh the degree of spray variables affecting drift. The study indicated that nozzle type, nozzle size and wind speed were all strong factors affecting drift, but wind was the strongest one, nozzle type was next and then was the nozzle size.更多还原