Abstract            Volume:11  Issue-7  Year-2023         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

Nitrogen is considered to be one of the most critical elements required by tomatoes for higher yield and quality since nitrogen is involved in numerous physiological metabolic processes and the crop's conformational structures. For the purpose of achieving this objective, a review was initiated to look into the effects of nitrogen application on the yield, yield components, and growth traits of tomatoes in many different parts of Ethiopia. Accordingly, as observed from this review, the impacts of nitrogen application on tomato yield and yield components vary tremendously, mostly due to differences in experimental and environmental variables. For example, the suggested nitrogen requirements for tomatoes, as noted in this review, vary greatly depending on experimental targets and environmental conditions. To enhance tomato yields, such as 69 kg ha-1, the use of nitrogen was advised. Other findings showed that nitrogen input of 110 kg ha-1 produced the maximum tomato yield. In addition, the research study also discovered that when fruit yield increased, 138 kg ha-1 of nitrogen application was recommended. As observed in this review, the experiment additionally demonstrated that 150 kg N ha-1 was necessary to provide the greatest yield of tomatoes and quality in general. In conclusion, according to this review, the ideal nitrogen rate was found to be between 69 and 207 kg ha-1, with the capacity to significantly improve tomato yield exceeding control in different areas of Ethiopia. It may, however, be inferred that a thorough study of tomatoes throughout the entire country should be conducted, taking into account season, spacing, fertilizer rate, agro-ecology, and variety of crops, in order to recommend a nitrogen fertilizer rate for maximizing tomato yield in Ethiopia.

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