Under normal pressure and temperature, ammonia is a gas lighter than air with a suffocating smell. It is stored, transported and applied under high pressure.
It has become common practice to use large quantities of reduced nitrogen (urea, ammonia and ammonium), especially urea, as a pre-plant fertilizer especially when producing maize.
Plants react not only to the amount of fertilizer applied, but also to the type of fertilizer, time of application as well as how the fertilizer is applied. In this article we will look at how plants take up nutrients and also the effect of this uptake on the eventual crop yield.
It has become common practice to use large quantities of pure urea as a pre-plant fertilizer especially when planting maize.
It is well known that Omnia and its shareholders invested R1.4 billion in an additional nitric acid plant in Sasolburg.