Nutrients Effect on Tomato's (Lycopersicon esculentum Mill) Hybrids grown in Unheated Plastic House

This experiment was conducted during autumn growing season of 2016-2017 under unheated greenhouse environment at the field station college Agriculture-University Tikrit to study effect seaweed, and organic extracts spraying on growth yield tomato's (Lycopersicon esculentum Mill) three hybrids. The following nutrients were used; Alga600, Seaweed, Max in addition control treatment. hybrids were; Rakan, Bushra, Sadouf. designed using split plot design with two factors. results showed that nutrient Alga600 significantly dominated fruit average weight (146.00 gm. each fruit-1, individual plant as it recorded for 2.33 kg. plant-1, number fruits (16.59 fruits. experimental unit (46.67 kg), total (3981.33 greenhouse-1), texture toughness fruits, pH 4.88 concentration 6.14 cm2 respectively. While Seaweed affected peel thickness 1.00 mm diameter 6.67 cm. fruit-1. hybrids, noticed hybrid Rakan thickness, (0.86 mm) (6.19 cm2). characteristics including (2.05 (41.00 green house (3.526 tones. house), per (14.69 plant-1), (137.67 gm). Sadouf pH, which 4.46.