Application Technology:
Determining Amount of Herbicides Needed
Excerpt from 2010-2011 Publication 75, Guide to Weed Control, Order
this publication
Table
of Contents
- Determining Amount of Product Per Hectare
- Determining Amount of Product Required
Per Tankful
- Other topics in Application Technology
- Related Links
Determining Amount of Product Per Hectare
Most rates suggested in this publication are given in terms of
both active ingredients (common name) per hectare and product (TRADE
NAME) per hectare. However, where the amount of active ingredient
in the
formulations varies considerably (for example, 2,4.D is available
in concentrations of 100 g/L, 400 g/L, 500 g/L, etc.) The rate is
given in terms of active ingredient only.
Note : Throughout the Crop Recommendations sections
of this publication, the common name of each herbicide (its active
ingredient) is printed in lowercase letters (e.g., atrazine, dicamba,
glyphosate), whereas the product trade name (the name of the liquid
or powder etc., inside the container as supplied by the manufacturer)
is printed in capital letters (e.g. AAT REX, BAN VEL II, glyphosate),
and its formulation is listed within brackets
following the trade name.
Determining Amount of Product Required
Per Tankful
After determining how much commercial product is needed per hectare,
calibrate the sprayer and determine the number of hectares each
tank will cover. Determine the quantity of herbicide needed to add
to the spray tank using the following formula:
Product required/tank = hectares covered by tank
x product rate/ha
Sample calculations:
(a) product/tank = 4.1 ha per tank x 2.2 kg/ha
=
9.02 kg Lorox/tank
(b) product/tank = 4.1 ha x 4.5 L/ha
=
18.45 L Atrazine/tank
Follow manufacturer's recommendations on mixing order and procedures.
Related Links
