Effects of biochar application under organic and chemical nutrition on yield, some ‎morpho-physiological and nutritional traits of tomato cv. Ismir ‎(Solanum lycopersicum Mill cv. Izmir)‎

In order to study the effects of biochar and chicken manure tea compost on the nutrition responses and growth characteristics of tomato plants (Lycopersicon esculentum), a greenhouse experiment was carried out. The experiment was designed as factorial based on randomized completeblock design with three replications. Factors included biochar in two levels (including 0 and 10 t/ha) and organic and chemical nutrition in six levels (including fresh chicken manure 30 t/ha, three levels of chicken manure compost tea 1:4, 1:8, and 1:12 chicken manure-to-water ratio by w/w, Macromix and Polymicro chemical fertilizer 1 lit/ha and water as control). The results showed there were significant differences among different treatments in regard to soil total N, Fe, Mn, Zn and Cu. The highest leaf N, shoot dry weight and yield were obtained in T1B1 treatment(biochar and chemical ferlilizer) and the maximum manganese, zinc, copper and iron were obtained in T3B1 (compost tea 1:4 and biochar) and T4B1 (compost tea 1:8 and biochar) treatments. T3B1 (compost tea 1:8 and biochar) treatment contained the highest value of DPPH IC50 (3.75 mg), vitamin C (29.03 mg/100g), however, no significant differences were observed between biochar and biochar plus nutrition on soluble solids and titratable acidity compared with control.