Mixing and Loading Agrichemicals Flashcards
7 cards from real GROWSAFE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Mixing and Loading Agrichemicals flashcards as text
What two pieces of information do you primarily use to calculate how much agrichemical to measure out for a spray job?
Answer: The application rate on the product label and the area to be treated
The product label states the required application rate, and combining this with the area to be treated gives you the exact quantity of agrichemical needed.
Why is it important to avoid preparing more spray mixture than you need for a job?
Answer: Leftover spray mixture is difficult and restricted to dispose of legally
Leftover spray mixture cannot legally be poured down drains or onto bare ground; excess must be managed according to label directions, so preparing only what is needed avoids this problem.
In the recommended mixing order for agrichemicals, which type of product is typically added last?
Answer: Surfactants and adjuvants
Surfactants and adjuvants are added last because adding them early can cause excessive foaming that prevents other products from dispersing properly.
Why is it important to keep the spray tank agitated while mixing agrichemicals?
Answer: Agitation keeps insoluble particles suspended and ensures an even, consistent mixture
Without agitation, wettable powders and suspension concentrates settle to the bottom of the tank, resulting in uneven application rates and ineffective pest or weed control.
What does the term 'tank mix' refer to in agrichemical application?
Answer: A combination of two or more products mixed together in the spray tank
A tank mix combines two or more agrichemicals or adjuvants in the spray tank for simultaneous application, which can save time but requires careful compatibility checking.
Before beginning to mix any agrichemical, what must you always read first?
Answer: The label of each product you intend to use
The product label is a legal document containing critical information on mixing rates, compatibility, safety requirements, and restrictions that must be followed for every use.
What is the main purpose of a closed transfer system when loading agrichemicals?
Answer: To transfer agrichemical from the container to the tank without exposing the operator to concentrate
Closed transfer systems use dedicated couplings to move concentrated agrichemical directly from the original container to the spray tank, minimising operator contact with the concentrate.