ya like i say dont really wanna use it trying to get away from nh3 is why we melting the 46-0-0.
I think once it is melted it is in solution. I did some 10% stuff last year and apart from the dirt that settled to the bottom of the tank it was fine, but that was only a few days. I did see some totes of 20% stuff at the local inputs place but it was like 10X the cost of the actual N!!!After uera is melted, how long can it sit in a tank till it needs to be circulated again after melting is done, will it build up in tanks after some time??
At 11% can you spray that straight onto the crop, or do you still have to mix/dilute it with more water when you add to the sprayer?Your right Don, 11% would be about the best you could do @ 15 deg. We top dress here between June and August, I'm guessing the average temperature of our water is 12 deg by then , so my main mix is approximately 2t of SOA fines plus 1.2t prilled Urea. The SOA is a lot easier to dissolve, we like to use it early on our sandier soils. Later on after flag leaf , we switch to a urea only brew. In wheat the urea would be mixed with copper and a fungicide, hopefully to keep the protein up.
I sprayed my 10% solution directly on the crop with flat fan nozzles at milk/soft dough stage with no leaf damage.At 11% can you spray that straight onto the crop, or do you still have to mix/dilute it with more water when you add to the sprayer?
The research I've read has shown a small amount can be taken into the plant, greater the leaf area the more uptake. Any urea missing or dripping off the leaf would be available for root uptake.N is taken up by the roots, not the leaves. You will get a flash appearance thru foliage. Seems like a lot of work just to dump N on the ground.