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Be careful with mushroom compost - or how to kill a citrus tree

Angelika Maier
Posts: 643
Location: cool climate
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My citrus never grew well and I always thought it is a lack of something. I applied blood and bone and Epsom salt and and and....
But the reason was not that there was something missing, the reason was an excess of salt.
I used mushroom compost in quantity because our soil is non existent. What I did not know that mushroom compost contains quite some
salt and citrus hate salt. Mushroom compost contains some nasties too. Now I go VERY easy on mushroom compost.
It's in the permaculture playing cards. Here's the link: http://richsoil.com/cards
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