than that of the drilled method. Seeding rates for most plants should be 25% to 50% higher with aerial seeding, when compared to other more conventional methods like drilling. These higher seeding rates are needed to establish same yields as other methods. This is mostly because, with aerial seeding, the seed can be often on the soil surface longer, making the seed more susceptible to predation by birds, insects, and other animals. Helicopter vs. plane There has been much debate with regards to which type of aircraft is better for aerial seeding. There is some evidence that shows helicopters may be best at the job when seeding in fields that are already established. This is because the wind from the blades of the helicopter causes the canopy of the already established crop to shake and open. This allows for more seed to reach the soil below. Another advantage for the helicopter is they are more maneuverable and can handle irregular shape fields while a plane has a harder time with such fields. The real advantage of the plane is it is faster than a helicopter and has the ability to carry a much heavier load. This allows the plane to finish the job much faster which equals less money spent in the air. Deployment methods For cover crop use, the recommendation from USDA remains to be direct broadcast of seeds, without coating into balls. Reforestation Dropping seed balls from crop spraying aircraft is the most common method and the one practiced by Farmland Aviation, Kenya, one of the few companies active in this field. They claim to be able to spread up to six tons of tree seeds per hour over tens of thousands of acres. Until 2017, drones were not used in aerial seeding. Low-cost UAVs lacked payload capacity and range limits them for most aerial seeding applications. A drone developed by Parrot SA and BioCarbon Engineering however has solved this issue. It is capable of dropping 100,000 pods a day. Deployment by paraglider is being tested in Kenya and holds promises of great reforestation rates because of low cost, low speed and altitudes, even if the seed spraying rate is likely to be much slower than deployment by larger aircraft. Feasibility and weaknesses Despite its low yield, interest in aerial seeding has recently grown, while searching for a quick system to obtain reforestation and fight global warming. The