This year the only N fertiliser I could get hold of at the time from my preferred source was CAN 27N 12SO3. Having never used this before and seeing the fact that it’s made up of two types of N (one of which is readily available and one that apparently takes 2 or 3 weeks to convert) does it need to be on much earlier or no need to worry? Just looking for peoples experiences with it as I’ve never used the stuff before. Thanks