consider the common nitrogen-containing fertilizers ammonia (NH3), ammonium nitrate (NH4NO3), and urea (CH4N2O). The element nitrogen is the active ingredient for agricultural purposes, so the mass percentage of nitrogen in the compound
AN was first synthesized by Johann Rudolf Glauber in 1659, and mass produced during the development of the synthetic ammonia industry in the middle of the twentieth century. In recent decades, AN has been used as an eco-friendly and inexpensive energetic solid rocket propellant material4,5. ...
Drone imaging was used to measure the impact of Pi fertilization on live green bio- mass (Vegetation Index, VI) and determination of shoot Pi content and gene expression was carried out as previ- ously described. As already observed for soils from Fig. 6, no significant differences were ...