Mobile Plant Analysis Lab @ pifCamp, Slovenia
From Hackteria Wiki
DIY sap press
just use a garlic press :-)
What the heck is a "petiole"?
"In botany, the petiole (/ˈpiːtɨoʊl/) is the stalk that attaches the leaf blade to the stem.[1]:87 The petiole is the transition between the stem and the leaf blade."
Literature and Links
Handbook of Methods for Plant Analysis
Download here: File:Kalra_-_Handbook_of_Reference_Methods_for_Plant_Analysis.pdf
Soil And Plant Analysis - Use A Lab Or Do It Yourself