Enhancing Tomato (<i>Solanum lycopersicum</i> L.) Fruit Yield and Quality and Blossom End Rot Control Using Different Biological Calcium Sources

Cultivated for its richness in nutrients, tomato culture is demanding fertilizer, especially calcium. Calcium deficiencies and physiological disorders cause serious diseases tomatoes. Blossom end rot (BER), susceptible cultivars, may severe economic losses. The goal of this study to determine the effect three organic calcium sources on growth quality fruit production Egg, snail sea shell powders extracts have been used as biological fertilizers. experiment was conducted a block factorial trial with replications. trials comprised two factors: source form (powder extract). results showed that parameters yield were improved by source, whatever form. Also, BER lower plants treated contrary control. However, eggshells best (mean) lowest rate (0.40%) than shell.