Last year we started using a 380019 yara compound for everything. Not convinced we will get it for next season so may need to do a seperate application of poly sulphate and use urea for the NAs I've written on other threads, I believe all crops, even grass, should be getting sulphur alongside their regular N applications. It is not a micronutrient and it no longer falls from the sky. Yes, there is some sulphur in manures and slurries but not shed loads.
We're low on S , used it last year and plant health was far better , used calcifert S this year , half the price of polysulphate and 53 units but vile stuff to spread
I’m about 1:1 using home brewed UAS.We’ve gone to a 1:3 ratio and seeing improvements