Total Nitrogen â¥15.5 Calcium Oxide â¥25.5 Boron â¥0.2or0.1.We're known as one of the most professional calcium nitrate granular with boron(pollenï¼calcium nitrate,granular,quick,ammonium nitrate) manufacturers and suppliers in China. If you're going to buy or wholesale bulk calcium nitrate granular with boron(pollenï¼calcium nitrate,granular,quick,ammonium nitrate) at low price, welcome to get free sample from our factory. us for more discount information.