Vol. 10, Special Issue 1, Part F (2026)

The polyhouse experiment was carried out at College of Horticulture, Hiriyur during 2020, to study the effect of levels of fertigation on quality of tomato. The experiment was laid out in randomized block design with seven treatments and three replications. The soil of experimental site was clay loam in texture, alkaline inpH, medium in Organic matter and phosphorous. Low in available nitrogen and medium in available potassium. The results of experiment indicated that soil application of 100:100:100 kg NPK per acre increased the quality of tomato significantly over other fertigation treatments. Treatments received soil application of 100:100:100 kg NPK per acre gave higher shelf life (9.38 days), TSS (3.41 ⁰ brix), lycopene content (56.60 mg 100g^-1) and ascorbic acid (123.37 mg 100g^-1) and was significantly superior over all other treatments. Among the fertigation treatments higher shelf life (8.71 days), TSS (3.08 ⁰ brix), lycopene content (51.91 mg 100g^-1) and ascorbic acid (110.24 mg 100g^-1) was recorded by the treatment which received soil application of 40:40:40 kg NPK per acre + 4 kg 19:19:19 per acre through fertigation and was on par with treatment that received soil application of 40:40:40 kg NPK per acre + 3 kg 19:19:19 per acre through fertigation. However, the lowest values for higher shelf life (7.36 days), TSS (2.55⁰ brix), lycopene content (42.18 mg 100g^-1) and ascorbic acid (96.39 mg 100g^-1) was registered in treatment which received soil application of 20:20:20 kg NPK per acre + 2 kg 19:19:19 per acre through fertigation.