If the percentage of nitrogen in ammonium sulphate fertilizer is 20%, calculate the amount of nitrogen in 500 kg of the fertilizer. By: Sunday|Published on: Jul 4|Categories: Agricultural Science WAEC| 0 comments A. 20 kg B. 40 kg C. 50 kg D. 100 kg E. 250 kg Correct Answer: Option D – 100 kg Users Also Read These:If 200kg of NPK fertilizer is required for an…The oxidation state(s) of nitrogen in ammonium…If urea fertilizer contains 46% nitrogen. calculate…A farmer applied NPK 15:11:8 at planting. What is…The nitrogen obtained from air has a density higher…SEE ALSO Fertilizers that usually contain one nutrient which can be used directly by plants are commonly called?