CAJ | 학술논문

雾滴粒径对农药在作物上的沉积分布性能及病虫害防治效果起决定性作用。采用HELOS/QUIXEL型号激光粒度仪，对新型空心圆锥雾喷头在不同喷芯直径、喷嘴直径、喷雾压力及喷雾距离下的雾滴粒径进行试验研究。应用方差分析及正交分析方法分析了各因素对雾滴粒径的影响；通过回归分析建立了雾滴粒径与主要影响因素之间的回归模型。结果表明：该喷头雾滴粒径范围为70～120μm，满足农作物病虫害防治要求；喷嘴直径（ D）、喷雾压力（ P）、喷雾距离（ H）对雾滴粒径具有显著性影响，影响效果由强到弱的顺序为喷嘴直径、喷雾距离、喷雾压力；雾滴粒径（ D50）与主要影响因素间的回归模型为D50＝78?53＋0?00029 H2＋17?76 D2-0?077 HP，拟合程度较高。
무적립경대농약재작물상적침적분포성능급병충해방치효과기결정성작용。채용HELOS/QUIXEL형호격광립도의，대신형공심원추무분두재불동분심직경、분취직경、분무압력급분무거리하적무적립경진행시험연구。응용방차분석급정교분석방법분석료각인소대무적립경적영향；통과회귀분석건립료무적립경여주요영향인소지간적회귀모형。결과표명：해분두무적립경범위위70～120μm，만족농작물병충해방치요구；분취직경（ D）、분무압력（ P）、분무거리（ H）대무적립경구유현저성영향，영향효과유강도약적순서위분취직경、분무거리、분무압력；무적립경（ D50）여주요영향인소간적회귀모형위D50＝78?53＋0?00029 H2＋17?76 D2-0?077 HP，의합정도교고。
Droplet size has an important effect on the deposit distribution properties and pest control. In order to study the performance of the new hollow cone nozzle, HELOS/QUIXEL laser particle size analyzer was applied to measure droplet size at different nozzle structure parameters, spray pressure and spray distance. The relationship between different test parameters and the droplet size was then analyzed by variance analysis and orthogonal analysis. Furthermore the mul-tiple regression model between the droplet size and main factors was constructed. The results showed that the range of droplet size is 70-120 μm, and meet the requirement of pest control. The nozzle diameter, spray pressure, and spray distance had significant influence on droplet size (α = 0.05), and the nozzle diameter was the strongest one, spray pressure was the weakest. The regression model was D50=78?53+0?000 29 H2+17?76 D2-0?077 HP, which had a high fitting degree, could provide evidence for optimization and series production of nozzle.