The purpose of this study was to observe the effect of organic fertilization on the production and quality of tomato fruits grown in early culture in the solar. The influence of this fertilizer was followed in 2017 in a tomato crop in southwestern Romania (Almăj-Dolj). The Reyana hybrid was studied which was foliarly fertilized with the organic product Folicist in the doses of 0.5 l/ha, 1.0 l/ha and 1.5 l/ha. The parameters traced were: production, humidity, soluble dry substance, titratable acidity, vitamin C content, total polyphenols and carotenes as well as fruit pH. The highest yield of 12.76 t/ha was obtained at a dose of 1.0 l/ha and also at the same dose were recorded the best quality parameters of the fruit, such as: S.D.S. was 4.7 oBx, humidity of 90.3%, titre acidity of 1.33 mg/NaOH/100g f.m., vitamin C of 24.3 mg/100g f.m., total polyphenols 66.4 mg/100g f.m., total carotenes 51.3 mg/100g f.m. and pH 4.49. These results show that an adequate fertilization of plants with nutrients substances is crucial to achieving high yields and good-tasting fruits.Â
