Proceedings of the New Zealand Weed and Pest Control Conference1988 - Pesticides |
From inside the book
Results 1-3 of 54
Page 22
... sampling . Soil samples for bioassay of herbicide residues were collected from 0-10 cm depth at , or soon after , harvest of each trial site in February . About 1 kg of soil was collected from each plot . In total , ten bags of soil samples ...
... sampling . Soil samples for bioassay of herbicide residues were collected from 0-10 cm depth at , or soon after , harvest of each trial site in February . About 1 kg of soil was collected from each plot . In total , ten bags of soil samples ...
Page 49
... samples for bioassay of herbicide activity were obtained from the 0-10 cm depth of each plot , 1 , 4 , 7 , 14 , 21 , 28 , 35 , 42 , 49 , 56 and 63 days after spraying . Samples were also taken from the 10-20 cm depth 14 and 21 days ...
... samples for bioassay of herbicide activity were obtained from the 0-10 cm depth of each plot , 1 , 4 , 7 , 14 , 21 , 28 , 35 , 42 , 49 , 56 and 63 days after spraying . Samples were also taken from the 10-20 cm depth 14 and 21 days ...
Page 133
... samples from natural populations are related by a power law : S2 = axb where x is the mean number of insects per core ; a is a scaling factor characteristic of the species and related to the environment , sampling procedure , and sample ...
... samples from natural populations are related by a power law : S2 = axb where x is the mean number of insects per core ; a is a scaling factor characteristic of the species and related to the environment , sampling procedure , and sample ...
Contents
Author Index | 9 |
Address by Sir David Beattie to 40th Annual Conference | 15 |
CEREALS | 21 |
Copyright | |
25 other sections not shown
Other editions - View all
Common terms and phrases
41st N.Z. Weed activity alligator weed aphid application asparagus assessed Auckland barley bioassay BYDV Canterbury cereals chemical clethodim crop cultivars cyproconazole damage diclofop-methyl disease DSIR effect eggs field flowering fluazifop-butyl fluvalinate foliage fruit fungicides g/ha glyphosate gorse grass grub grass weeds growers Hamilton clay loam herbicides Horotiu sandy loam infection insecticide kg/ha kiwifruit larvae leaf litres/ha loam soil MCPA mite miticides mulch myclobutanil nodding thistle NZ Weed orchards P.O. Box paclobutrazol Palmerston North pasture pendimethalin Pest Control Conf picloram pirimicarb plants plots Popay populations Proc programme propargite propiconazole Pukekohe quizalofop regrowth replicates Research residues resistance rosettes Ruakura ryegrass samples seed seedlings sethoxydim shoot significantly Silwet L-77 simazine spray surfactant susceptible Table temperature tested thrips tillers tip rot translocation treated treatment trees trial triasulfuron untreated uptake Weed and Pest weed control weeks yield Zealand