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Use of Urea Top-dressing Fertilizer for Higher Yields

As most parts of Zimbabwe recently received incessant rains, Urea fertiliser presents a good option for effective top-dressing. This is due to the fact that the conventional nitrogen source Ammonium Nitrate generally leaches under incessant rainfall which is not the case with Urea. This article provides basic information concerning Urea and its characteristics. The objective is for farmers to fully appreciate the nature of Urea and its effects, and secondly, to assist farmers with the proper use and application of Urea in maize specifically. Basic Description of Urea Fertilizer Urea is a white crystalline solid fertilizer containing 46% nitrogen. It is widely used in the agricultural industry as a fertilizer or an animal feed additive. Here, we only discuss its use as a nitrogen top dressing fertilizer. Commercially, Urea fertilizer can be purchased as prills or as a granulated material. In the past, it was usually produced by dropping liquid Urea from a "prilling tower" whil