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Aerial topdressing of forests

, : Aerial topdressing of forests. What' s New in Forest Research (114): 4

Techniques are described for applying superphosphate using fixed-wing aircraft or helicopters in New Zealand.

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Related references

Poole, R.G., 1979: Aerial topdressing in New Zealand. The use of fixed wing aircraft and helicopters for fertilizer and herbicide application is described.

Chamberlain, H.D.O., 1954: Aerial topdressing in Poverty Bay. Aerial application of P as ordinary or serpentine super to hill pastures was profitable where white clover, subterranean clover or Lotus major had been oversown, but not in the absence of legumes. Pastures should be sufficiently heavily stocked af...

Boyle, Aj, 1969: Aerial topdressing in the upper Hunter

Campbell, D.A., 1951: Developments in aerial topdressing during 1949. Almost perfect distribution could be obtained by flying at a height of 400 ft. in parallel flights 75 ft. apart with the present hopper 4/7th opened. Investigations have shown that 2 mm. diameter pellets of P are desirable, and response to topdres...

Sherwin, R.A., 1955: Aerial topdressing of pastures. Developments in New Zealand. The recent increases in the use of aircraft for agricultural purposes in New Zealand are discussed and compared with conditions in Australia. In 1953-4, 25% of the fertilizer applied to New Zealand pastures was distributed by aircraft, nearly 2 mi...

Kelly, M., 1983: Aerial topdressing industry in crisis New Zealand. New Zealand farmer8, 104(14): 11-13

Campbell, D.A., 1950: Development of aerial topdressing of grasslands as a conservation tool to minimise run off. Trials demonstrated the practicability of controlling run-off by restoring deteriorated and eroded hill pastures in New Zealand by application of topdressed airborne super. A satisfactory density of distribution of granular super, at a rate of 2-2...

Kelly, M., 1983: Aerial topdressing--industry in crisis. 6. Funded, cohesive research essential. New Zealand farmer2, 104(18): 30

Arnold G.H.; Dilz K., 1967: Late topdressing of winter wheat m by means of aerial spraying with urea. Netherlands Nitrogen Technical Bulletin (5): 1-28

Rennie, N., 1982: Aerial topdressing innovations Aircraft, equipment, fertilizer application, New Zealand. New Zealand farmer, 103(17): 31-32