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When it comes to potassium inputs, potassium sulphate is probably your best option.
It’s an allowable input in certified organic enterprises and has a relatively low salt index so not hard on soil biology.
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Did the test just look for available potassium or total potassium? Big difference. Have you looked into making total available using fungi?
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Hi All,
We’re wanting to do more ‘quick and dirty’ sap analysis on the vineyard during the upcoming growing season, to look at responses to foliar nutrition. Does anyone have recommendations on where we can get the equipment? Really we’re just chasing a refractometer and a hand held clamp/pliers for getting the sap out of petioles as a…
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I use these could probably knock up a set easy enough but it’s another job. https://nutri-tech.com.au/products/advanced-sap-extractor
could buy a refractometer same site and shipping but probably cheaper option elsewhere
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