How To Lower Soil PH with Different Mulches - Knowledgebase Question

Evanston, Il

Question by franconeri20
October 23, 2010

Do shredded pine needles lower soil PH levels when they decompose?

Answer from NGA
October 23, 2010

0	Certain acidifying organic materials such as peat moss and pine needles can lower soil pH gradually over a period of years, but for more rapid results in lowering pH, sulfur is commonly used. To calculate how much sulfur you will need, you can go to the following website, type in the current soil pH and the program will calculate just how much sulfur you will need to change the pH. http://www.garden.org/calculat... Good luck with your garden!

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