The solution to this question will rely on whether you are planning to feed flowering or fruiting crops, large shrubs, trees or lawns. Overall nitrogenous fertilizer use for every area, calculated in tonnes of complete nutrient each year. Nitrogen fertilizers are made from ammonia (NH3) made by the Haber–Bosch approach. https://bulkfertilizersupplydubai02345.nizarblog.com/37423409/fertilizer-wholesale-rate-dubai-exporters-to-india-an-overview