Information Management to Maximize Your Yields

Spray Mixing Best Practices

By Brian Thilges
Customer Development Manager, Winfield

After the past 2 weeks and 4 calls about cottage cheese like product in the bottom of the tank, I am sending out some information on how to handle/avoid it. With some of these tank mixes these days you can’t help but have slime forming in the tank. Here are a couple of tank mixing sins that people don’t think about.

1) Not following the proper mixing order. When growers and applicators follow this correct mixing order, we tend to have very few problems.

2) Not enough water in the tank before they begin to add products. These new formulations (especially Flexstar GT, Flexstar (and generics) and Halex GT) love to combine with water. If you have a high ratio of herbicide to water and/or the water is cold then tank mixing will be more difficult. If you are having a problem, START with half a tank of water before beginning to add products…. and AGITATE between products.

3) Making a new batch when the spray tank isn’t fairly close to empty. For example, a farmer starts with a 1000 gal load. He doesn’t want to run out so he heads to the well with 100+ gallons of fully formulated mix in the tank. He mixes ANOTHER 1000 gal load on top of the remaining 100 gal. Now he has a 110% mixture…. and does it AGAIN. After the fourth load he has a ~130% strength mixture and that’s when the problem ruins his day. Not only that but on average he’s paying 20% more per acre to create this mess. Either he needs to empty the prior load or only mix for just the ADDITIONAL 900 gal added to the previous remaining portion of a load.

4) Still got a problem or want to prevent one? Add one gal of compatibility agent to the load or if you don’t have compatibility agent on hand use 1 gal of Preference to the load.

Dont hesitate to contact your local MaxYield Agronomy Specialist or SciMax Specialist with any questions.