Anhydrous Ammonia Safety
Whenever dealing with anhydrous, it is important to have the PPE on. This includes long neoprene gloves, a full respirator mask or ventless googles and a respirator, a long sleeved shirt, and pants. Gloves should be rolled up on the edge to prevent drips running into the gloves.
Before connecting, always check the wind direction. Whichever way the wind is blowing, face upwind in case of an accidental release and have proper PPE on.
- Make sure the flow control valve is in the off position and close the bleeder valves on either side of the quick coupler.
- Check the nurse tank supply hose, both the liquid withdrawal valve and the hose and valve must be closed before connecting to the breakaway coupler. Always handle the hose and valve by the valve body and hose, never by the handwheel – this will prevent from opening a valve accidentally.
- Connect the hose to the quick coupler fitting and then open the hose and the valve.
- Open the withdrawal valve up on the nurse tank slowly. Watch for leaks if there are none the valve can be opened completely. By opening the withdrawal valve last, it positions you away from the applicator and at the source valve. If there were a leak in the system, you would be able to close the valve immediately.
When not applying NH3, close the liquid withdrawal valve on the nurse tank completely. This includes daily tasks such as quitting for the day, meal breaks, moving to another field, etc.
- Get upwind and away from the product immediately
- Call Horizon Fertilizers and 911 if the situation warrants
- If clothing becomes crystallized or frozen to the body, flush the clothing with water for at least 15min before removing.
- If using a pressurized hose, add a towel or cloth overtop of the burn area to reduce the pressure of the water onto the injured surface. When transporting someone with a burn, keep a moist towel on the exposed area.
- If you inhale or ingest vapor, drink lots of water. Do NOT induce vomiting.
- If a person is vomiting, ensure the head is below the waist line to prevent the liquid from going into the lungs
- Do not apply oils, creams, or ointments to the burn area and get immediate medical attention.
Spring Pre-Seed Spraying Temperatures
How long to wait before seeding?
Under good growing conditions, seeding may resume after 6 hours of an application of glyphosate if there was only annual weeds present. If tank mixing with other products or spraying under more stressful conditions (ex) cooler temperatures) wait a day before beginning to seed or starting other field work.
For perennial weeds, wait 72 hours after spraying in good growing conditions. If the weather is cool and cloudy, wait another day to allow sufficient time for the chemical to move to the roots of the weeds.
Spraying after frost
If the nighttime temperatures dip in the range of 0 to -4°C, it’s ok to spray the next day go as long as day time temps reach 8-10°C. If the temperatures are colder than -5°C, wait 1-2 days to assess the frost damage and see if the plants are beginning to actively grow again. A good rule of thumb is to look for at least 60% green material on a plant after a hard frost before going out and spraying.
Spring Seeding Temperatures
April 29th - Bruno = 4.6°C, Leroy = 5°C
April 30th - Cudworth = 7°C, Leroy = 6.6°C
May 1st - Leroy = 8°C, Bruno = 7.1°C
May 4th - Bruno = 6.3°C
Weed ID: Dandelion vs Narrow-leaved Hawk's Beard
Here are some simple tips for correctly identifying these commonly mistaken weed seedlings:
It is difficult to ID either plant based on cotyledon alone. The first true leaves tend to be the first indication there is a difference. A dandelion seedlings first true leaves will have sparse, irregular toothing on the edges of the leaves. These “spiked” margins tend to point back towards the middle of the plant.
For cereals there are many options that will effectively control both weed seedlings. Select a preburn option that includes one of more of the following actives, Florasulam, Tribenuron, Pyraflufen-ethyl and/or Halauxifen (Arylex).
For canola, the preburn options are much smaller and therefore you will have to rely on your glyphosate rates for control of these weed seedlings. Fortunately, there is a new Gr. 4 active, Halauxifen (Arylex) which has exceptionally good activity on both NLHB and Dandelion seedlings.
For pulses, several actives such as Tribenuron and Pyraflufen-ethyl can be added to your preburn glyphosate and control these seedlings very well.
NLHB and Dandelion remains a challenge to control in any cropping system. Both species thrive in late fall/ early spring, so it is key to control them early in the growing season. Fortunately, there are now many effective preburn options available and the need to rely on glyphosate alone for control is now much less.