果园喷雾机风速对雾滴的沉积分布影响研究

Effect of Wind Velocity From Orchard Sprayer on Droplet Deposit and Distribution

果园喷雾机利用风机产生的气流将雾滴输送至靶标 ,携带有细小雾滴的气流驱动果树叶片翻动 ,使叶面的正、反面都能着药 ,大大提高了药液在靶标上的覆盖密度和均匀度 ,可使药液的利用率达到 30 %以上。雾滴在果树上的沉积分布主要受果园风送式喷雾机风机风速的影响 ,而风机的风速主要由风量来决定。该文通过改变风机风量 ,探讨了树冠内风速的变化规律对农药在靶标上沉积量的影响 。

The orchard sprayers which transport the droplets to target using air stream of blower can increase the deposit of chemicals on the target to 30% with the air assistance, because the small droplets can land the positive and negative surface of leaves with blowing of air stream. The deposition and distribution of droplets on the leaf is affected by the sprayer wind velocity of blower which is determined by wind capacity of orchard sprayer's blower. Therefore, sprayer wind capacity in the tree canopy determine the wind velocity. The different sprayer wind velocity that affects the deposition and distribution of droplets were discussed through changing the wind capacity, and the correlation between wind velocity and rift, deposition was present.