Effect of nano fertilizers on quality of okra (Abelmoschus esculentus L.) var. Kashi Lalima

Abstract

The present study was conducted during the summer season of 2024 at College of Horticulture, Rajendranagar, SKLTGHU, Hyderabad. The experiment was carried out with thirteen treatments i.e., T1-100% Recommended Dose of Fertilizers (N, P, K), T2-Nano urea foliar spray @ 2 ml L-1 + 75% N+100% PK RDF,T3-Nano urea foliar spray @ 2 ml L-1 + 50% N+100% PK RDF, T4-Nano urea foliar spray @ 3ml L-1 + 75% N+100% PK RDF,T5-Nano urea foliar spray @ 3 ml L-1 + 50% N+100% PK RDF,T6-Nano urea foliar spray @ 4 ml L-1 + 75% N+100% PK RDF, T7-Nano urea foliar spray @ 4 ml L-1 + 50% N+100% PK RDF, T8-Nano DAP foliar spray @ 2 ml L-1 + 75% NP+100% K RDF, T9-Nano DAP foliar spray @ 2 ml L-1 + 50% NP+100% K RDF, T10-Nano DAP foliar spray @ 3 ml L-1 + 75% NP+100% K RDF, T11-Nano DAP foliar spray @ 3 ml L-1 + 50% NP+100% K RDF, T12-Nano DAP foliar spray @ 4 ml L-1 + 75% NP+100% K RDF,T13-Nano DAP foliar spray @ 4 ml L-1 + 50% NP+100% K RDF in a Randomized Block Design replicated thrice. The results revealed that highest values for ascorbic acid (18.76 mg 100g⁻¹), crude protein (3.92%), crude fiber (4.42%), and anthocyanin content (3.96 mg 100g⁻¹) were recorded in T12 – Nano DAP foliar spray @ 4 ml L⁻¹ + 75% NP + 100% K RDF.