Aerial topdressing is the spreading of fertilisers such as superphosphate over farmland with the use of aircraft. Aerial topdressing was developed in New Zealand in the 1940s and was rapidly adopted elsewhere in the 1950s.
Read more about Aerial Topdressing: Success in New Zealand, Aircraft, Developing Specialist Machines, Mature Industry, Environmental Impact
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“But with some small portion of real genius and a warm imagination, an author surely may be permitted a little to expand his wings and to wander in the aerial fields of fancy, provided ... that he soar not to such dangerous heights, from whence unplumed he may fall to the ground disgraced, if not disabled from ever rising anymore.”
—Sarah Fielding (1710–1768)