Alex,
I used to apply primo at the recommended greens rate of 300ml/ha every 3 weeks with 40l of nsure 28-0-0 and 20 kg of 13-0-45 and a little liquid iron in 500 l of water /ha.base fed with 6 month product in april and adjusted rates of tankmix up or down depending on clip and appearance. Would have liked to have applied primo at the half rate every 2 weeks as research has shown it to be more consistent at shorter intervals, didnt have the time or resources.Now working at a course where the super sprays every ten days with primo tank mix @ 100/ml ha with a cocktail of liquids and the results are very little clip and a unbelievabley dense turf.Quality Poa!!!
I found on tees you could really up the rates depending on conditions. I was spraying 800ml/ha on tees with 20 kg of prilled urea and reckon they could have handled a bit more, old tees, pure grass factories!!