Massachusetts | Hay Wilson in TX - 3/11/2010 22:10
The yield response to the chlorine in MOP is for wheat. While the lower quality for adding chloride is for potatoes. There possibly is some logic to that. Something that is part of the Greater Universal Truth while we are looking at unique circumstances.
Tatters and wheat are different. I would not think it unusual for their chlorine requirements to be different.
Maybe like both alfalfa and bermudagrass use about the same amount of potassium but alfalfa normally uses double the calcium that bermudagrass needs. They both can be harvested for hay, while potatoes have to be dug up while wheat has to be thrashed.
Not well written but maybe you can find some logic in my blather.
There is only one truth. People, being fallible and imperfect, cannot perceive it.
I take a lot of ag research with a grain of salt (!) The simple fact that the wheat researchers and the potato researchers likely used different soil testing methods means you can't really compare the research. What were the levels of K and Cl in the soil before and after treatment? Both labs may report 100 ppm, but one labs 100 ppm does not equal the other labs 100 ppm. They claim the wheat response was from the chloride, did they include calcium chloride in the experiment to see if the response wasn't actually from the K? But then, how do you know if the response wasn't from the Ca?
As far as the potato research being conflicting. Some research shows a change in specific gravity in potato when potassium chloride is used vs. potassium sulfate. The conflicting research is from different states, that use different soil testing methods, and likely are testing for different things. Did they even look for sulfate levels in the soil? Maybe one state did, and the other didn't. Or maybe one state's S test is different, and the soil had adequate S, and they didn't realize it. Who knows?
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How much chloride is in 0-0-60??
