Aerial topdressing
Organic manure
Fertiliser spread pattern
Fertiliser effect on oats
Fertilising the forest
Ground spreader
Fertiliser blower
Spreading by hand
First topdressing trials
Aircraft fertiliser hopper
Applying lime
The Tiger Moth
Hill-country airstrip
The Fletcher topdressing aircraft (1 o 2)
The Cresco (2 o 2)
Loading fertiliser
Ground spreading
Topdressing by helicopter
Map from GPS technology
Aerial spraying
Accurate fertilising
