John Slejpner
Member
- Location
- Brick clay near Bedford
Just a quick note to impart my fact of the day from this years Cereals.
The tissue tests Lancrop do are on a dried sample. And while this is well known, what i didn't appreciate was that Potassium is the one important nutrient whose measurement is compromised by this approach.
The dry sample tissue test is almost certainly under-reading K, and to get a more accurate reading a wet sample test (just for K) would be an idea.
Thanks to Yara for bothering to attend, and Mark Tucker in particular for a most interesting 15 minutes of his time.
The tissue tests Lancrop do are on a dried sample. And while this is well known, what i didn't appreciate was that Potassium is the one important nutrient whose measurement is compromised by this approach.
The dry sample tissue test is almost certainly under-reading K, and to get a more accurate reading a wet sample test (just for K) would be an idea.
Thanks to Yara for bothering to attend, and Mark Tucker in particular for a most interesting 15 minutes of his time.
