Among the mineral nutrient elements, nitrogen is a kind of macronutrient. Most plant species are able to absorb and assimilate nitrate (NO3 â??), ammonium (NH4 +), urea and amino acids as nitrogen sources. Most soils do not have sufficient N in available form to support desired production levels. Therefore, addition of N from fertilizer is typically needed to maximize crop yields. Many kinds of N fertilizers are used which contain varying forms of N such as NO3 â??â??N, NH4 +â??N and urea. However, NO3 â?? form of nitrogen is the predominant form of N absorbed by plants, regardless of the source of applied N (Breteler and Luczak, 1982). This preference is due to several autotrophic soil bacteria, which rapidly oxidize NH4 + to NO2 â??, and then to NO3 â?? in warm, wellâ??aerated soils. Even though NO3 â?? is the most available form of N to plants, it can be more readily lost from the root zone because it is very mobile and easy to leach. This economically and environmentally undesirable process perpetuates a large amount of the uncertainty associated with N fertilizer management. In the soil solution, nitrate is carried towards the root by bulk flow and is absorbed into the epidermal and cortical symplasm. Within the root symplasm, nitrate has four fates: (1) reduced to nitrite by the cytoplasmic enzyme nitrate reductase; (2) efflux back across the plasma membrane to the apoplasm; (3) influx and stored in the vacuole. Product name : Billa Pho Power Chemical Properties : 1-Nitrogen (N):8%w/v 2-Phosphorus (P):22%w/v 3- Amino Acids :10%w/v 4- Ammonium Tetrombybate 5- Vitamin B1 6- Vitamin B2 7- Vitamin B6 8- Vitamin B12 Physical Properties Form : Liquid Solubility Fully Water Soluble : Fully Water Soluble PH (1g /100ml ): 8-8.5 TDS 10 g / L: 980 ppm Color:  Yellow Package: plastic bottle â?? Drum Size: 1 Liter, 20 Liter, 200 Liter, 1000 Liter Place of Origin: Egypt