Authors

Abstract

According to the planting agronomy of Lycium barbarum L. in Ningxia, a self-propelled straddle-type sprayer was designed. The aim was to reduce the labor requirements, improve the spraying effect to the middle and lower parts of the canopy, reduce the influence of natural wind on droplet drift, and recycle excess liquid medicine to reduce environmental pollution. Tests showed that the coverage rate of liquid medicine on the leaf surface and back of the leaf peaked at 84.2% and 48.3%, respectively, when spraying pressure was high. Under different spraying distances, the coverage rate of liquid medicine on leaf surface and back of leaf reached 73.3% and 38.3% at the shortest distance. The uniformity of the spray droplet distribution was good, the use error was less than 10%, and the excess liquid was effectively recovered.

Abstract in Chinese

针对宁夏地区的双层篱架式枸杞种植农艺，设计了一种自走式跨行枸杞喷药机。目的在于减轻劳动强度，提高树冠中下部的喷药效果，减少自然风对液滴漂移的影响，并将多余药液进行回收以减少对环境的污染。试验结果表明：在不同的喷药压力下，叶面和叶背的药液覆盖率可达84.2%和48.3%；在不同的喷药距离下，叶面和叶背的药液覆盖率可达73.3%和38.3%。整机喷药的雾滴分布均匀性良好，施药量误差均在10%以内，并且可以有效的对多余药液进行回收。