Growsafe Mixing and Loading Agrichemicals

Question 1

What is the correct procedure when filling a spray tank with water and agrichemical concentrate?

Accepted Answer

Fill the tank half full with water, add the chemical, then top up with water

Answer

Add the chemical first, then fill completely with water

Answer

Mix the chemical in a separate bucket first, then pour into the full tank

Answer

Add the chemical and water simultaneously through separate inlets

Question 2

What is the three-rinse method used for in agrichemical handling?

Accepted Answer

Emptying and cleaning agrichemical containers before disposal

Answer

Cleaning spray nozzles after completing an application

Answer

Rinsing PPE after accidental chemical contact

Answer

Flushing spray lines between different chemical products

Question 3

What is an induction hopper primarily used for when loading agrichemicals?

Accepted Answer

Safely adding powders and liquids to the spray tank without direct tank opening contact

Answer

Storing agrichemical concentrates safely during transport

Answer

Measuring accurate quantities of agrichemical before mixing

Answer

Filtering the spray mixture to remove undissolved particles

Question 4

Before mixing two different agrichemicals together in a tank mix, what must you always check?

Accepted Answer

That the products are compatible with each other

Answer

That both products are manufactured by the same company

Answer

That both products are registered under the ACVM Act in NZ

Answer

That both products have the same withholding period

Question 5

What does an anti-siphon device on spray equipment prevent?

Accepted Answer

Spray mixture or chemical from flowing back into the clean water source

Answer

Over-pressurisation of the spray tank during filling

Answer

Chemical settling at the bottom of the spray tank

Answer

Nozzle blockages caused by undissolved particles

Question 6

Where is the most appropriate place to mix and load agrichemicals on a NZ farm?

Accepted Answer

On a sealed, bunded pad located away from waterways and drains

Answer

Any convenient location away from people and livestock

Answer

Inside the agrichemical storage shed to keep chemicals contained

Answer

In an open paddock where spills can soak into the soil harmlessly

Question 7

What is the correct first response if you accidentally spill agrichemical concentrate during mixing?

Accepted Answer

Contain the spill and absorb it with suitable absorbent material, then dispose of safely

Answer

Dilute immediately with large volumes of water to reduce concentration

Answer

Cover the spill with soil to prevent evaporation and vapour release

Answer

Wash the spill area down with a hose to disperse the chemical