Coffee Grounds - Revision history

Iceagefarmer at 19:38, 30 June 2018

2018-06-30T19:38:25Z

Iceagefarmer at 19:36, 30 June 2018

2018-06-30T19:36:20Z

Iceagefarmer at 06:27, 30 May 2018

2018-05-30T06:27:17Z

Iceagefarmer: Created page with "(as soil amendment) ==pH== A common belief is that coffee grounds as an amendment will acidify your soil. According to at least one study, however, this is untrue: "Less..."

2018-05-30T06:22:51Z

Created page with "(as soil amendment) ==pH== A common belief is that coffee grounds as an amendment will acidify your soil. According to at least one study, however, this is untrue: "Less..."

New page

(as soil amendment)

==pH==

A common belief is that coffee grounds as an amendment will acidify your soil. According to at least one study, however, this is untrue:

"Less straightforward are the changes in pH that occur during decomposition. A commonly held assumption states that coffee grounds are acidic, but this does not hold true experimentally. While two studies on coffee ground composting reported mildly acidic pHs of 4.6 and 5.26, others have measured neutral (7.7) to somewhat alkaline (8.4) pH levels. One researcher found that the pH of soil treated with coffee compost increased after 14 to 21 days of incubation, gradually decreasing thereafter. Obviously the pH of decomposing coffee grounds is not stable and one shouldn’t assume that it will always, or ever, be acidic."

← Older revision		Revision as of 19:38, 30 June 2018
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	Coffee grounds can be used as a good source of greens for [[Compost]]. As always, don't go too heavy on the nitrogen or it will smell.		Coffee grounds can be used as a good source of greens for [[Compost]]. As always, don't go too heavy on the nitrogen or it will smell.
		+
		+	==as Mulch==
		+	You can apply spent grounds directly around nitrogen loving plants like tomatoes.

	==pH==		==pH==

← Older revision		Revision as of 19:36, 30 June 2018
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	(as soil amendment)		(as soil amendment)
		+
		+	Great source of nitrogen :: NPK 2.0 : 0.36 : 0.67
		+
		+	==for Vermiculture==
		+	Worms love spent grounds, just be mindful that they are acidic and you don't want to drown your worms in them.
		+
		+	==in Compost==
		+
		+	Coffee grounds can be used as a good source of greens for [[Compost]]. As always, don't go too heavy on the nitrogen or it will smell.

	==pH==		==pH==

@@ Line 3: / Line 3: @@
 ==pH==
-A common belief is that coffee grounds as an amendment will acidify your soil.  According to at least one study, however, this is untrue:
+A common belief is that coffee grounds as an amendment will acidify your soil.  According to at least one study, however, this is untrue [https://s3.wp.wsu.edu/uploads/sites/403/2015/03/coffee-grounds.pdf]:
   "Less straightforward are the changes in pH that occur during decomposition. A commonly held assumption states that coffee grounds are acidic, but this does not hold true experimentally. While two studies on coffee ground composting reported mildly acidic pHs of 4.6 and 5.26, others have measured neutral (7.7) to somewhat alkaline (8.4) pH levels. One researcher found that the pH of soil treated with coffee compost increased after 14 to 21 days of incubation, gradually decreasing thereafter. Obviously the pH of decomposing coffee grounds is not stable and one shouldn’t assume that it will always, or ever, be acidic."