Dynamics of chitosan based NPK-nanofertilizers in greenhouse cucumber production system

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Abstract

Aim: To study the effect of NPK-nonofertilizers on growth, reproductive and yield parameters as well as nutrient recovery efficiency in greenhouse cucumber. Methodology: The performance of greenhouse cucumber cultivar KPCH-1 was studied using six treatments namely 100 % RDF(90:75:75 kg ha-1) through water soluble fertilizer (WSF), 60 % RDF as nanofertilizer, 50 % RDF as nanofertilizer, 40 % RDF as nanofertilizer, 30 % RDF as nanofertilizer and absolute control. Growth, reproductive and yield parameters of greenhouse cucumber as well as nutrient use efficiency were assessed during cropping period. Results: The plants administered with 60% RDF through nano-fertilizer showed12.07%, 11.85% and 15.72% higher increase in leaf area at 30 and 60 DAS as well as at final harvest, respectively, over 100% RDF through WSF. The greenhouse cucumber fertigated with 40% RDF as nanofertilizer recorded maximum number of pickings and number of fruits per vine accounting for maximum increase in marketable yield compared to WSF. The cucumber plants administered with 40% RDF as nano-fertilizers also recorded maximum apparent N, P and K recovery efficiency. Interpretation: Nano-fertilizers have ability of controlled release of desired nutrients at their site of action. Despite of lower concentration, higher yield obtained at 40% nano-NPK fertilizer was associated with high nutrient recovery by nanofertilizers.

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APA

Modi, S., Kumar, S., & Dubey, P. K. (2021). Dynamics of chitosan based NPK-nanofertilizers in greenhouse cucumber production system. Journal of Environmental Biology, 42(1), 162–168. https://doi.org/10.22438/JEB/42/1/MRN-1251

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