Abstract
A greenhouse experiment was conducted at College of Agriculture V.C. Farm, Mandya using CRD design with ten treatments and three replications with an objective to study the “Effect of urea modified hydroxyapatite nano fertilizer (UHA) on quality of tomato under greenhouse condition”. Whereas, highest TSS content (5.80 0 Brix) was recorded in the treatment T9 which received 100% Nitrogen-Urea + 1.00% UHA spray and significantly highest lycopene content was recorded in treatment T9 (16.85 mg 100g-1). Highest ascorbic acid content of tomato plant was observed in the treatment T8 (68.04 mg 100g-1) with the application of 100% Nitrogen-Urea + 0.50 per cent UHA spray, which showed significant difference with all the treatments. Increased quality parameters in tomato was attributed to increased growth and yield parameters which is due to slow and sustained release of nitrogen, phosphorus and calcium from urea modified hydroxyapatite nano fertilizer.
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