It also buggers up your soil
http://www.no-tillfarmer.com/pages/News---Study-Challenges-Soil-Testing-For-K,-Value-Of-KCl.php
http://www.no-tillfarmer.com/pages/News---Study-Challenges-Soil-Testing-For-K,-Value-Of-KCl.php
Interesting article. Probably why you have to use Sulphate of Pottassium rather than MOP when you are organic, although I thought it more to do with the chlorine.
Murate of Potash (M.O.P) is Potassium Chloride(KCl)what chlorine?
Only just starting to scratch the surface of what soil science is imk. Pun intendedThe other interesting point id the potassium returned to the soil. Would that affect a model where straw is removed? It does seem that we are probably better off unlocking K rather than adding more. Soil science is probably the next big step in crop productivity IMO
They used MOP to firm up clay subsoils when building runways during the war.
I would expect some clay soils to have huge reserves of potash, but I doubt light sand has much to release? Opposite applies to phosphate. On our sand we struggle to get phosphate levels below 3, but potash 0 to 1.5.
Maybe the opening of the poly halite mine up in N Yorks or somewhere will be the answer.
I'd heard that about the aerodrome runways too. Something to do with the KCl binding the clay platelets very tightly together.
We haven't put any K fertiliser on most of our fields for years and the index keeps rising (whenever we do a conventional test) but as it seems the testing is flawed, perhaps that doesn't mean much. It is reassuring though to read some research that backs up a hunch...quite unusual too, to get some that tells you that you don't need to spend money!
knowing is oposite of guessing, I guess.Tissue test should satisfy as to whether the plant is getting what it needs. Though it will always be slightly short of k at stem extension I guess
knowing is oposite of guessing, I guess.
York-Th.
p.s. after a eveing out with the Top Twins in KiwiLand
Now, now you two.
Good guess though Will, I am a bit of a novice at tissue tests, but the few we've done are very revealing (in conjunction with Albrecht soil test...)