【摘要】 对一种新研制的机动背负式喷杆喷雾机的流量分布、药液沉积均匀性、农药沉积率及农药对操作者的污染与传统手动喷雾器进行对比研究。结果表明:该机具流量分布变异系数为11.09%;药液沉积的变异系数为20.27%,较传统手动喷雾器低6%;当施药液量为225 L/hm2和300 L/hm2时,处于拔节期水稻上的农药沉积率为25.9%和27.4%,比传统手动喷雾器分别提高了7.8%和5.8%,而操作者体表的农药沉积量分别降低近70%和50%。该机具喷施药液分布均匀,农药沉积率较高,适宜在小型地块实施喷雾作业。更多还原

【Abstract】 In order to compare the performances of a motor-knap-sprayer,which is a new plant protect machine in Chi-na,with two traditional handled-knap-sprayers,the volume distributions,the uniformities of pesticide droplet,the de-positions of pesticide and the body exposures of these three types of sprayers were experimentally studied in this work.The variation coefficient of volume distribution of the new machine is11.09%,and that of droplet deposit was 20.27%,which is6% less than that of the conventional machine.When the spray volumes are225L/hm2and300L/ hm2for the elongation rice,the chemical depositions are25.9% and27.4%,which are enhanced by7.8% and5.8%,respectively.However,the chemical depositions on body decreased by70% and50%,respectively,at that volume.With uniform distributions of droplet and high chemical deposition,the new machine is better for farmer used in small fields.更多还原