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Our research aims to study the effectiveness of using Moringa oleifera leaves as an organic fertilizer by answering the following questions: - What is the effect of fertilizing Moringa oleifera leaves on plant growth (stem length and number of leaves)? - How does the use of Moringa oleifera leaf extract affect soil properties (acidity, salinity, and conductivity)? To answer these questions, we used leaves powder in different quantities to fertilize tomato plants and compare growth rates. We also prepared liquid fertilizer from moringa leaf extract and used to fertilize tomato plants and compared growth rates with another tomato plant fertilized with organic fertilizer, using ground cover protocol. The soil protocol was applied studying the soil characteristics (acidity, salinity, and conductivity) to study the fertilization effect of moringa leaves on these characteristics. The results indicated the effectiveness of using Moringa oleifera leaves as an organic fertilizer, as the plant that was fertilized with Moringa leaf extract recorded higher growth rates within 5 weeks (37 cm) compared to the growth rate of (29.5 cm) for the plant that was fertilized with organic fertilizer and (22 cm) for the plant that was not. As it turned out, there were also higher values for the acidity, salinity and conductivity of the soil that was fertilized with moringa leaves, because the leaves contain high chemical elements percentages. Therefore, we must add specific powder amounts to get better plant growth. Based on the research results, we recommend the need to intensify guidance campaigns for farmers to encourage them to grow moringa and use as organic fertilizer instead of chemical fertilizers and as fodder for their livestock . Also, by planting more moringa trees , the carbon will decrease in the atmosphere. Key terminologies: - Moringa oleifera plant, scientific name (Moringa Oleifera) and belongs to the (Moringacea) family . - Fertilization: Adding fertilizers to the soil increasing its fertility.