Yep, I believe this is what we have been trying to tell all of those Miracle Grow gardeners for about 5 years now.https://www.agronomy.org/science-news/fertilizers-impact-soil-health-compared
Thought this might make interesting reading.
There have been many many studies and the vast majority of them have found that animal and fowl manure is by far the superior. It seems that mulch hinders or slows the production of NKP in the soil. Mulch is still a great thing to use but the larger the mulch particles the longer it takes to make available NKP to plants. Applying mulch to the surface MIGHT hinder slightly the production of NPK but not enough to really make a difference as compared to no mulch at all. Compost on the other hand is just old degraded composted mulch and actually increases the NPK.This reminds me of a nagging thought I've had over the years.
If you heavily mulch your garden, it becomes a habitat for so many critters from the microscopic up to the size of lizards/snakes and birds....
How does all that "manure" compare to more traditional forms of manure? But there has probably never been a study on that, I'm guessing.
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