ISSN:
1365-3180
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary. Large-scale field testing of herbicides nccessitales the use of small experimental plots. Most of the available small-plot experimental sprayers do not have any mechanical control of the speed of the spray boom and thus depend on the speed of the operator or an pushed by or mounted on various types of vehicles. Inability to attain a desired speed of the spray boom over a short distance by mechanical means has hindered the development of a precise small-plot sprayer. This problem was resolved by the attainment of the desired speeds prior to the release of the spray boom. The principal parts of the unit are: (1) speed control and drive mechanism with an endless cable running at speeds of 1, 2 and 3 miles/hour; (2) boom-carrier which may be locked to the continuously running cable; (3) rotary gear pump; (4) pressure regulator; and (5) spray boom with two ‘even spray Teejet’ nozzles. The entire machine is 6 ft wide and 13 ft in length and sprays a plot 5 ft wide and 10 ft long. The unit is mounted on four wheels for transport from plot to plot. During its initial trials in the field, the unit has shown precision, accuracy and repeatability in small-plot spraying, seldom attained by small-plot sprayers. In addition the unit is simple in design and can be easily assembled by an experienced mechanic.Un pulverisateur de précision pour petites parcelles experimentales
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-3180.1963.tb00241.x
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