The spreading of fertilizer from aircraft, typically on steeply sloping land.
no aerial topdressing has been done in the valley for some years
Example sentencesExamples
After the war he returned to the RNZAF, and became Station Commander of RNZAF Stations Wigram, Fiji and Taieri before leaving to take up aerial topdressing.
It was assumed that ewes could not rear twins on the hill country, but the arrival of aerial topdressing improved pasture production and lambing percentages rose.
The picture shows aerial topdressing in Kaituna Valley.
They describe him as the pioneer of aerial topdressing.
Then came the introduction of aerial topdressing in 1948.
He was able to do quite a lot of development: fencing for subdivision into paddocks, buying some additional land, and getting aerial topdressing.
As an aerial topdressing pilot in the early 1950s, he was given the task of testing and proving the prototype.
On New Zealand's rugged landscapes aerial topdressing of pasturelands was widely adopted, and helped boost productivity.
Granulated fertiliser delighted the aerial topdressing industry because it could be loaded and delivered better from aircraft, meaning less waste.
Aerial topdressing opened up NZ's vast and hitherto infertile hill country to intensive pastoral production.