Evaluation of selected commercial oilseed rape cultivars for early vigour, weed suppression and yield in southern New South Wales

Weed Research ◽  
2020 ◽  
Vol 60 (6) ◽  
pp. 450-463
Author(s):  
James M. Mwendwa ◽  
William B. Brown ◽  
Paul A. Weston ◽  
K. M. Shamsul Haque ◽  
Christopher Preston ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
New South ◽  
New South Wales ◽  
Weed Suppression ◽  
South Wales ◽  
Early Vigour

Author response for "Evaluation of selected commercial oilseed rape cultivars for early vigour, weed suppression and yield in southern New South Wales"

2020 ◽  
Author(s):  
James M. Mwendwa ◽  
William B. Brown ◽  
Paul A. Weston ◽  
K. M. Shamsul Haque ◽  
Christopher Preston ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
New South ◽  
New South Wales ◽  
Weed Suppression ◽  
Author Response ◽  
South Wales ◽  
Early Vigour

Weed control and row-spacing in dry-land sorghum in northern New South Wales

1982 ◽  
Vol 22 (117) ◽  
pp. 310 ◽  
Author(s):  
JF Holland ◽  
DW McNamara
Keyword(s):  
Weed Control ◽  
New South ◽  
New South Wales ◽  
Grain Sorghum ◽  
Weed Suppression ◽  
Row Spacing ◽  
Dry Land ◽  
Weed Growth ◽  
South Wales ◽  
Growing Conditions

Six experiments were done in northern New South Wales over three seasons to study the effect of weeds on the yield of dry-land grain sorghum and methods of weed control. The relation between crop row spacing and weed control by inter-row cultivation or atrazine (2-chloro-4-ethylamino- 6-isopropylamino-l,3,5-triazine), or both was studied. Where the site yield was high because of favourable growing conditions, an increase in the crop row spacing reduced yield. At low yielding sites, an increase in the row spacing increased yields. At most sites, weed growth was greater with wider row spacings, which resulted in a larger reduction in crop yield where weeds were not removed. Inter-row cultivation reduced weed growth to less than half that of the unweeded controls. Pre-emergent atrazine gave good weed suppression, generally reducing weed growth to less than 10% of the unweeded control when applied at 2.5 kg/ha active ingredient. Post-emergent atrazine was much less effective. Inter-row cultivation combined with a band of pre-emergent atrazine over the crop row was as effective in weed control as an overall spray of pre-emergent atrazine.

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