Effect of NPK Fertilizers, Farmyard Manure (FYM) and Bio-fertilizers on Quality Parameters of Onion (Allium cepa L.) Grown in Jaipur, Rajasthan
Ajad Kumar, Hoshiyar Singh, Anil Kumar
International Journal of Plant & Soil Science · pp. 720–726 · Published 6 Apr 2024
10.9734/ijpss/2024/v36i54570Abstract
The current experiment was conducted in loamy sand soils of the Horticulture farm, Vivekanand Global University Jaipur, during Rabi season of 2020-21 and 2021-22. The experiment comprised of 32 treatment combinations replicated three times, was laid out in split-plot design (SPD) with four fertility levels of NPK (0, 50, 75 and 100% of recommended dose of NPK) and two levels of FYM (without FYM and with FYM @ 25 t ha-1 were added in main plots. Four bio-fertilizer levels (No inculcation N2 fixer Azotobacter, PSB inculcation and N2 fixer Azotobacter + PSB inoculation) were added in sub plots. The results of the study have clearly shown that application of chemical fertilizer up to 100% RDF increased all the quality attributes (pungency, chlorophyll content and TSS), NPK and S content and uptake and availability of N, P and K in soil after harvest the crop. With application of FYM @ 25 t ha-1 significantly improved all quality attributes (Allyl propyl disulphide, chlorophyll and TSS), N, P, K and S content and uptake and availability of N, P and S in soil after harvest the crops. Use of biofertilizers (N2 fixers and PSB) alone or in combination increased all the quality attributes (Allyl propyl disulphide, chlorophyll and TSS content), NPK and S content and uptake and availability of N, P and K in soil after harvest the crop.
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