Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 120
ATRAZINE RESIDUES UNDER COMMERCIAL MAIZE CROPPING CONDITIONS R. W. NAISH and C. D. FORGIE Ivon Watkins - Dow Ltd , New Plymouth and Hastings Summary A bioassay method was used to assess the persistence of atrazine in maize ( Zea mays ) ...
ATRAZINE RESIDUES UNDER COMMERCIAL MAIZE CROPPING CONDITIONS R. W. NAISH and C. D. FORGIE Ivon Watkins - Dow Ltd , New Plymouth and Hastings Summary A bioassay method was used to assess the persistence of atrazine in maize ( Zea mays ) ...
Page 124
... atrazine to turnips ( Brassica rapa ) was increased significantly . This effect was not observed at sub - lethal concentrations of atrazine nor at phosphate levels below 150 ppmw . Phosphorus concentration in plant tops increased with ...
... atrazine to turnips ( Brassica rapa ) was increased significantly . This effect was not observed at sub - lethal concentrations of atrazine nor at phosphate levels below 150 ppmw . Phosphorus concentration in plant tops increased with ...
Page 137
... atrazine in the level of control achieved . Two other commonly occurring species ; Californian thistle ( Cirsium arvense ) and dock ( Rumex spp ) were not well controlled by any treatment . Effect on yield The metolachlor plus atrazine ...
... atrazine in the level of control achieved . Two other commonly occurring species ; Californian thistle ( Cirsium arvense ) and dock ( Rumex spp ) were not well controlled by any treatment . Effect on yield The metolachlor plus atrazine ...
Contents
Chairmans summary | 1 |
Notillage establishment of lucerne G C Atkinson | 9 |
Insects affecting lucerne seed production | 19 |
Copyright | |
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29th N.Z. Weed activity adults Agric Agricultural Research Centre alachlor aphid application areas assessed asulam atrazine Auckland autumn azinphos-methyl barley grass benomyl BGLA black beetle blue-green lucerne aphid brassicas Canterbury carbofuran chemical chlorpyrifos Christchurch crop cultivars cypermethrin damage diflubenzuron disease DSIR effect emergence ethofumesate fensulfothion field trials foliage fungicides germination gorse granules grass grub growth Hamilton harvest herbicides increased insect insecticides isazophos kg/ha larvae leaf legumes Lincoln linuron litres/ha lucerne lucerne yield maize method mite nematode North Island numbers oats P.O. Box Palmerston North paraquat pasture Pest Control Conf phorate picloram plants plots population post-emergence Proc pyri rates reduced replicates residual resistant Ruakura Ruakura Agricultural Research ryegrass samples season seed seedlings significant significantly soil sowing sown species spray sprayer spring stage summer Table tested treatments triclopyr untreated Weed and Pest weed control weeks weevil Wellington white clover white-fringed weevil Zealand