Premium
CHEMICAL WEED CONTROL IN MAIZE
Author(s) -
EDDOWES M.,
HARPUR R. L.
Publication year - 1965
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1965.tb00321.x
Subject(s) - simazine , mcpa , agronomy , atrazine , loam , weed , perennial plant , weed control , biology , soil water , environmental science , pesticide , ecology
Summary. From 1959 to 1962 the effects of some triazine and growth regulator herbicides applied pre‐emergence and post‐emergence to maize grown for silage were studied in field experiments on light to medium loam soils at Harper Adams College, Shropshire. Atrazine applied pre‐emergence at 1–1.5 lb/ac gave good control of annual weeds and was superior to simazine at equivalent rates. Soil moisture and rainfall after spraying were found to influence the activity of the triazines, but both were completely tolerated by maize. In 1960, 1961 and 1962 atrazine was much more effective against annual weeds than post‐emergence applications of MCPA and 2,4‐D. However MCPA and 2,4‐D gave adequate control of a range of annual and perennial weeds under favourable conditions in 1959 and 1960 but results were poor in the two following years due to the presence of resistant and late germinating weeds . The effect of the herbicides on development and yield of ihe maize are discussed. Le désherbage chimique dans le mais