Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 20
20 Soil bulk density was measured on the oven dry weight of 54 mm diameter
cores taken on 4 May in the untreated plots and those rolled in March and April ,
and on 3 June for plots rolled in May . Pasture Measurements : Pasture dry matter
...
20 Soil bulk density was measured on the oven dry weight of 54 mm diameter
cores taken on 4 May in the untreated plots and those rolled in March and April ,
and on 3 June for plots rolled in May . Pasture Measurements : Pasture dry matter
...
Page 184
The density of each species was estimated from the distances from the points to
individuals of that species , after correcting for clumping using the nearest and
next - nearest neighbour distances . The methodology was modified in the
second ...
The density of each species was estimated from the distances from the points to
individuals of that species , after correcting for clumping using the nearest and
next - nearest neighbour distances . The methodology was modified in the
second ...
Page 185
Density estimates varied widely between years , particularly for the annuals and
biennials . In most cases ( except rushes which were roughly constant and
Scotch thistle in N65 which declined to 45 % ) the densities of the species were
higher ...
Density estimates varied widely between years , particularly for the annuals and
biennials . In most cases ( except rushes which were roughly constant and
Scotch thistle in N65 which declined to 45 % ) the densities of the species were
higher ...
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Contents
Presidential Address | 13 |
Effect of application volume and spray additive concentration on the control | 89 |
The effect of metsulfuron on sweet brier M McD Turner G Iggo | 95 |
Copyright | |
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activity adult aphid application asparagus assessed Auckland block caused Centre chemicals clopyralid compared counts cover crop damage density DISCUSSION disease DSIR effect eggs emergence establishment experiments field formulation four fruit fungicides gave glyphosate gorse grass grass grub ground growth Hamilton harvest height herbicide higher important increased indicated infested insect insecticide kg ai/ha larvae leaf leaves less levels lower lucerne March Mean measured METHODS months mortality North numbers observed occurred P.O. Box pasture Pest Control Conf plants plots population present Private Proc production pupae ragwort range rates reduced REFERENCES replicates reported Research residues root ryegrass samples scale season seed seedlings showed significant significantly similar soil spears species spray spring stage stem Table tested thistle treated treatments trees trials untreated vines Weed and Pest weed control weeks weevil whitefly yield Zealand