The experiment was designed to investigate the effect of vermicompost and sulfur applications on growth, yield and nutritional status of tomato plants (Lycopersicum esculentum L. cv Kasel rock) grown in calcareous soil in a private farm –Komoshim El-Fayoum Governorate.
The results indicated that adding the vermicompost to the calcareous soil led to the improvement of the growth parameters of tomato plant where the increasing of plant height (cm), number of leaves, leaf area (cm2) and plant dry weight (g) of tomato plants were 33.7, 29.4, 27.9 and 39.5 %, respectively. Increasing vermicompost from 0 to 7.5 ton fed-1 increased significantly plant height, number of leaves, leaf area and plant dry weight of tomato plants when S increased from 0 to 200 kg fed-1. The increase in the rate of vermicompost under different rates of sulfur led to a significant increase in fruit yield, TSS and total sugar of tomato under the conditions of calcareous soil. The high values of fruit yield, TSS and total sugar were obtained under high rate of vermicompost (10 ton fed-1) and sulfur (200 kg fed-1); which were 31.67 ton fed-1, 6.74 % and 2.340 %, respectively. Data revealed that the lowest nutrient balance index was recorded by the high rates of vermicompost (10 ton fed-1) combined with 200, 150 Kg fed-1 of sulfur respectively.
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