Greensand contains potassium, iron, magnesium, calcium and phosphorus plus as many as 30 other trace minerals.
Greensand 5 Pounds Natural Fertilizer iron-potassium silicate, open bag supply
Greensand contains potassium, iron, magnesium, calcium and phosphorus plus as many as 30 other trace minerals.
14.7oz (close to 1 lb) Greensand powder Natural Fertilizer one pound
Anything over 1 lb is too costly and under 15 oz is too costly for the work value.