The role of boron. boron is vital to the growth and development of the plant. without adequate boron, new growth ceases. it is necessary in the pollination and seed production stages. boron is essential for maintaining a balance between sugars and starches. a small amount of boron is beneficial to plants but too much can be toxic to plants. Alahmari group is among the top 5 distributors of sabic fertilizers the kingdom of saudi arabia. as one of the top 5 distributors of sabic fertilizers in the kingdom, the group annually secures more than 100 thousand tons of fertilizer to its customers. Basic description. calcium ammonium nitrate +boron granular fertilizer , find complete details about calcium ammonium nitrate +boron granular fertilizer,calcium ammonium nitrate china,calcium nitrate,calcium nitrate granular from nitrogen fertilizer supplier or manufacturer-hebei monband water soluble fertilizer co., ltd. Pestell minerals & ingredients is a leading distributor of boron 15% granular in north america. our customers range from small agricultural centres to the largest feed mills.