Dry amendment shelf life

Hey guys! I've been trying to find some info on the shelf life of dry organic amendments, but haven't found much. I'm assuming rock dusts and other minerals are fine, but how about fish meal, kelp meal, and alfalfa meal? I read that the nitrogen may break down over time. Any info on this? I'm asking because I plan on buying a bunch of bulk amendments which will probably last me 10+ years

DynamiteBob said:

Hey guys! I've been trying to find some info on the shelf life of dry organic amendments, but haven't found much. I'm assuming rock dusts and other minerals are fine, but how about fish meal, kelp meal, and alfalfa meal? I read that the nitrogen may break down over time. Any info on this? I'm asking because I plan on buying a bunch of bulk amendments which will probably last me 10+ years

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nutrient values never expire from what i understand so long as they are stored in dry conditions. matter is neither created nor destroyed.........

I buy many amendments from big box stores in the fall like blood meal, bone meal or whatever as they are half price more or less. Keep stuff dry and sealed up. I buy Alfalfa meal for a couple years at a time. My fish meal and poultry meal are a couple years old and still smell and act the same as always. Nurseries are worth checking in the fall.

Storage required for 10 years organic supplies though, might be better used for fishing tackle.

I just got 10 gallons of Oak ash and charcoal from an old tree that smoldered for a week.