Paul Daly (Fianna Fail) | Oireachtas source

How is the correlation made between what is purchased and what is actually spread? For example, what would happen if I wanted to buy 20 tonnes of nitrogen in September but I had a good year and there was a chance of fertiliser prices going up again, so I decided to buy 60 tonnes because I had a few bob? We can use the day of delivery rather than the day of purchase for the example. When I purchase 60 tonnes in September, it goes onto the system, but I will not spread 40 tonnes until the following March, which is a new calendar year for schemes. How will anybody know when I spread it?