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Fresh Starts said:Do you know of a lab that tests leaf tissue for silica content?
I don't see why any lab that performs tissue analysis shouldn't be able to include silicon in the testing. Its not going to be a common or routine test for them, but if asked, any agricultural lab should be capable of doing the analysis.
The problem is finding a lab that is close enough to you, that you can hand deliver, and that is willing to take your tissue.
fyi, my recommended concentration of any element in the working solution is highly variable according to the fertigation frequency. If you are fertigating more than once a week with silicon, the level in the working solution can and arguably should be lower than 45-50 ppm Si. Hence the table.
Silicon in Agriculture, From Theory to Practice
By Yongchao Liang, Miroslav Nikolic, Richard BĂ©langer, Haijun Gong, Alin Song
If you really want to be as up to date as you can be as a layman, read that book. I will loan you my copy if you are serious.
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