- Location
- Montgomeryshire
This is what's foxing me,
In college we were taught :
Grazing = Nitram ok
silage or hay = either compound fertiliser or FYM + Nitram
I appreciate fully I was in college over 30 years ago and I should be doing soil tests, but as everything seems ok and loads of grazing I want to keep soil fertility and levels level. I just wondered if anyone was doing it as I was and using just N for grazing...
Unless your indices are on the floor, you won't be taking any appreciable amount of K off with grazing only, but you will be taking some P out. If you take a hay/silage crop off, you remove a hell of a lot of K (which is why it's high in slurry/FYM), so will need to replace it somehow to avoid depletion.
I am low in P&K here, after decades of nought going on, so apply a cwt/ac of 0:24:24 to grazing only blocks, just as a maintenance dressing. Looking at going to just putting a small dose of P (as TSP?) on in the Spring in future, with a dose of MOP on the odd fields that get mown.
Getting pH right will make a lot of soil P more available too (& N efficiency) in case that's an issue.