An agricultural drone is an unmanned aerial vehicle applied to farming in order to help increase crop production and monitor crop growth. Farmers are able to use drones to help them gather a richer picture of their fields. It is employed in soil fertility investigation and mapping, detect stress in plant as a result of diseases and pests, locate water stream courses for horticultural projects. In other areas of Agriculture, it is used in tracking disease occurrence and prevalence in livestock, taking inventories of forest resources, assessing water courses for ideal location of fish ponds and observatories of aquaculture habitat, etc.

Drones are equipped with different state of the art technology such as infra-red cameras, GPS and laser. Drones are controlled by remote control system (ground cockpit); thus the two parts are, the drone itself and the control system.
Details can be found in my signature