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Research and Development of Chemical Distribution Equipment for Agricultural Aircraft in California

Published online by Cambridge University Press:  04 July 2016

Norman B. Akesson
Affiliation:
Agricultural Engineering Department, University of California
Wesley E. Yates
Affiliation:
Agricultural Engineering Department, University of California

Extract

Following the Second World War, agricultural aircraft use increased rapidly in the United States, but appears to have levelled off in the past five years. California is one of the largest users of agricultural aircraft of any State, with an estimated 8 million acres treated per year. This figure includes all applications of insecticides, fungicides, and herbicides, plus seeding, fertilising, and defoliation of agricultural crops, grasslands and forest areas. Also, this figure represents acres covered and includes duplicated applications. Certain crops, such as cotton, may have as many as four or five separate treatments during the season.

Type
Distribution Apparatus
Copyright
Copyright © Royal Aeronautical Society 1963

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References

1.Dept. Personnel. Acreages Treated for Pest Control by Counties in 1961. State of California, Department of Agriculture, Bureau of Field Crops and Agricultural Chemicals, Announcement No. PC-152. April 1961.Google Scholar
2.Fraser, R. P.The Mechanics of Producing Sprays of Different Characteristics. Plant Protection Conference 1956. Butterworth Scientific Publications, London. 1956.Google Scholar
3.Yeo, D.Droplet Size Distributions from Flat-Spray Nozzles Fitted to Aircraft. Journal of Agricultural Engineering Research, Vol. 4, No. 2. 1959.Google Scholar
4.Akesson, Norman B. Drift Problems in the Application of 2,4-D by Aircraft. Down to Earth (Dow Chemical Co.). Spring 1955. Google Scholar
5.Schultz, H. B.et al. The Delayed “Sea Breezes” in the Sacramento Valley and the Resulting Favorable Conditions for Applying of Pesticides. Bui.Am. Meteorological Soc. Vol. 42, No. 10. 1961.Google Scholar
6a.Yeo, D.Aircraft Applications of Insecticides in East Africa Section IX: Further Experiments in the Deposition in Open Country of a Coarse Aerosol Released from Aircraft. Bulletin of Entomological Res., Vol. 45, Part 4. Dec. 1954.Google Scholar
6b.— The Problem of Distribution ; the Physics of Falling Droplets and Particles. The Drift Hazard. First International Agricultural Aviation Conference. International Agricultural Aviation Centre, The Hague. Sept. 1959.Google Scholar
7.Yates, W. E.Spray Pattern Analysis and Evaluation of Deposits from Agricultural Aircraft. Transaction Am. Soc. Agr. Engineers, Vol. 5, No. 1. 1962.Google Scholar
8.Yates, W. E. and Akesson, N. B. Fluorescent Tracers for Quantitative Micro-Residue Analysis. Paper Number 62-118, Am. Soc. Agr. Engineers. 1962.Google Scholar
9.May, K. R.The Measurement of Airborne Droplets by the Magnesium Oxide Method. Jour, of Sci. Instruments, Vol. 25, No. 5. 1950.Google Scholar
10.Akesson, Norman B. and Yates, Wesley E. Application Aspects of Viscous Emulsions as an Agricultural Spray Formulation. Paper Number 61-617, Am. Soc. Agr. Engineers. Dec. 1961.Google Scholar
11.Akesson, Norman B. and Yates, Wesley E. Drift Residues on Alfalfa Hay. California Agriculture (University publication), Vol. 15, No. 12. Dec. 1961.Google Scholar
12.Yates, Wesley E. and Akesson, Norman B. Research Studies of Spray Drift from Aircraft. Conference notes, 5th Annual Texas Agricultural Aviation Conference, Texas A and M College. Feb. 1956.Google Scholar
13.Chamberlain, J. C., et al. Studies of Airplane Spray-Deposit Patterns at Low Flight Levels. U.S.D.A. Tech. Bui. No. 1110. 1955.Google Scholar
14.Weick, Fred E., Roth, G. A., et al. Handbook on Aerial Application in Agriculture. Texas A and M Agricultural Extension Service, College Station, Texas. 1956.Google Scholar
15.Roth, George A.Application of Granular Materials. Agricultural Aviation, a publication of the International Agricultural Aviation Centre, The Hague, Vol. 3. No. 3. 1961.Google Scholar
16.Henry, James E. Laboratory and Flight Studies of Distributors for Spreading Dry Materials with an Airplane. Agricultural Avia-tion,No\. 3, No. 3. 1961.Google Scholar
17.Razak, Kenneth A. A Method of Analyzing Agricultural Aircraft Operations. Conference notes, 10th Annual Texas Agricultural Aviation Conference, Texas A and M College. Feb. 1961.Google Scholar