Boron 10%

50 lb. bag

Recommended method application: Broadcast spreader

Material: Granular

This is a granular calcium borate product with 10% boron.  It is released slower in soil than sodium borate, making it less prone to leaching and causing excesses.

The yearly application limit is 20 lbs per acre/year. (2 lbs actual boron).  

Organic use requires a soil test showing deficient boron.  Always check with your organic certifier before using any product.