best lowest price china factory fertilizer grade Boron21% CAS No 10555-76-7

      Application:
1). It can accelerate to compose amino acid and proteide, they are essential of plant.
2). It reacts on the process of cell differentiation.
3). Increase viscosity of cell bioplasm, enhance plants disease resistance.
4). Accelerate the development of root vascular bundle, and it is good for rhizobium propagation and nitrogen fixation. 5). Accelerate carbohydrates transform and transportation. 6). Regulate plant to absorb all kind of nutrition. Balance plants nutrition structure.
7). It can enhance plants abilities of resisting drought, chillness and hotness.
8). Accelerate chlorpphyllous formation and stabilization.
9). Accelerate the bourgeon of microspore and elongation of farina tube, and good for plant reproductive organogenesis.       Parameter             Guaranteed Value            Typical analysis Appearance           Pure White powder             Pure White powder       Bo content  .          21.0%±0.5%                       21.06%             Solubility in water    Completely soluble             Completely soluble       Water-Insoluble       0.01%                         0.005%                      PH(1%sol.)           8.0-9.5                         8.3                      Content               (Na2B8O13.4H2O)    ≥99.5%                        99.7% Na2O                 ≥14%                          14.3%                  B2O3                 ≥68%                          68.5%