Self-propelled three-wheel sprayer high spray rod wheat field sprayer Runlin four-wheel vegetable insecticide sprayer spraying machine application scope; suitable for machine broadcasting, machine planting water, dryland crop diseases and pests, and machine defense against unified prevention and treatment operations. In addition, the machine adopts a multi-cylinder diaphragm pump, has a large displacement, and is reliable in operation. The dual-use spray rod sprayer has a wide spray range, large capacity and operation, and is an ideal sit-down pastoral management machine. The product has compact structure, beautiful and elegant appearance, segmented design of spray rod, automatic expansion and contraction, and convenient operation. Used in field crops, lawns, nurseries, wall vineyards and specific occasions such as airports, road snow melting, highway weeding, etc. Three-wheel self-propelled dispensing machine: front drive rear drive support custom 02 self-propelled agricultural sprayer three-wheeled small four-wheel tractor front dispensing machine: