Proceedings of the New Zealand Weed and Pest Control Conference1969 - Pesticides |
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Page 75
... reduced mangold vigour , and subsequently no signifi- cant yield increases occurred , nor was final population affected . Experiment B The main weeds at spraying were fathen ( 1 to 2 pair true leaves ) , wire- weed ( 2 true leaves ) ...
... reduced mangold vigour , and subsequently no signifi- cant yield increases occurred , nor was final population affected . Experiment B The main weeds at spraying were fathen ( 1 to 2 pair true leaves ) , wire- weed ( 2 true leaves ) ...
Page 273
... reduced for a period of 31⁄2 years . Iso- benzan the chemical in question cannot be used , therefore , on soils where food production for any purpose is carried out , even though it is possible that cther soil types would not give the ...
... reduced for a period of 31⁄2 years . Iso- benzan the chemical in question cannot be used , therefore , on soils where food production for any purpose is carried out , even though it is possible that cther soil types would not give the ...
Page 64
... reduced yields of clover and ryegrass at certain times of the year . Vartha considered that the full effects of reduced clover yields were probably not recorded as the trials were of limited duration and nitrogen was applied in one case ...
... reduced yields of clover and ryegrass at certain times of the year . Vartha considered that the full effects of reduced clover yields were probably not recorded as the trials were of limited duration and nitrogen was applied in one case ...
Contents
Presidential Address W F Leonard | 15 |
Control of Hornwort Ceratophyllum demersum B E Manson | 23 |
Endothal as an Aquatic Herbicide G W Woon and G W Mason | 30 |
Copyright | |
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Common terms and phrases
abAB acre aphid application areas assessment asulam atrazine Auckland Australian soldier fly autumn barley grass bromus mollis BYDV Canterbury carbetamide cereal aphid chemical chlormequat Christchurch crop damage Department of Agriculture diazinon dicamba diquat disulfoton dry matter effect ester farm farmers fathen fenitrothion fensulfothion formulations gorse grain gran granules grass grub grazing growth harvest heptachlor herbicides increase infestation insecticide ioxynil larvae lb/acre lindane linuron lucerne matagouri MCPA MCPB means and signif methabenzthiazuron mixture N.Z. Weed organophosphate P.O. Box paddock paraquat parathion pasture response peas Pest Control Conf phenmedipham phorate picloram plants plots porina post-emergence Proc production prometryne pyrazon rainfall rates reduced replicates residual ryegrass samples season significant simazine soil sowing sown species spraying Stat Summary Table terbutryne thistle tion Total treated Treatment lb trials trichlorfon Untreated variety Weed & Pest weed control weed seeds wheat white clover willow weed yield Zealand