Knowledgebase

Soil Sample Interpretation #809614

Asked September 06, 2022, 9:14 AM EDT

Why do I have such high levels of P K and Mg in my composted manure?

Windham County Vermont

Expert Response

Hi Janet.  Thanks for contacting the UVM Extension Master Gardener Helpline.

I think the following links will go a long way to answering your question and suggesting strategies for dealing with the excess.
https://extension.umn.edu/nutrient-management-specialty-crops/correct-too-much-compost-and-manure
https://www.uvm.edu/sites/default/files/Extension-Community-Horticulture/InterpretingSoilTests.pdf

Hope this information helps.
Jessie, UVM Extension Master Gardener Volunteer Replied September 06, 2022, 9:51 AM EDT

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