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Distribution quality of orchard sprayers 1
Author(s) -
KAUL P.,
SCHMIDT K.,
KOCH H.
Publication year - 1996
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/j.1365-2338.1996.tb01530.x
Subject(s) - orchard , deposition (geology) , reproducibility , distribution (mathematics) , position (finance) , coefficient of variation , soil science , environmental science , horticulture , mathematics , botany , biology , statistics , paleontology , mathematical analysis , finance , sediment , economics
Studies of the variability of initial deposition on leaves from orchard sprayers showed that both minimum and maximum values and the coefficient of variation of the amounts deposited increased in a linear manner with the application rate. The minimum and maximum amounts of deposit are important for biological efficacy, potential development of resistance. determination of the dose rate and effects on beneficial organisms. Measurements of the amounts deposited on leaves at different tree heights showed that the reproducibility of curves is considerably interfered with by random effects. There was not always a connection between these curves and measurements on a lamellate vertical distribution test stand. Measurements of vertical distribution from a fixed position differed considerably from those produced with forward movement.