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The effect of a short‐persistence systemic insecticide on the yield of perennial ryegrass
Author(s) -
HENDERSON I. F.,
CLEMENTS R. O.
Publication year - 1976
Publication title -
grass and forage science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 56
eISSN - 1365-2494
pISSN - 0142-5242
DOI - 10.1111/j.1365-2494.1976.tb01109.x
Subject(s) - perennial plant , dimethoate , persistence (discontinuity) , yield (engineering) , agronomy , biology , toxicology , pesticide , physics , engineering , geotechnical engineering , thermodynamics
The insecticide dimethoate was applied to a sward of S23 perennial ryegrass over a period of 2 years at three dose rates and at five frequencies of application. Annual DM yield was increased by up to 5% in the first year and by up to 17% in the second. The value of the additional yield is compared with the cost of obtaining it.