ArticleBMC plant biology2026
Synergistic effect of nano-chelated iron fertilizer and vermicompost tea on the stigma yield and phytochemicals of Crocus sativus L. in an alkaline soil.
Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundSaffron (Crocus sativus L.) is considered the most valuable spice in the world, and its cultivation requires specific soil conditions to maximize yield and quality. While saffron can grow in calcareous soils, the high pH levels typically associated with these soils can limit optimal production. Limited studies have demonstrated that applying nano-chelated iron fertilizer (NCIF) and solid vermicompost individually can enhance saffron growth and yield. However, the combined effects of NCIF and liquid vermicompost tea (VCT) in alkaline conditions remain unexplored in saffron or other plants. This study investigated the individual and combined impacts of NCIF soil drenching (0, 4, and 8 kg ha
resultsVCT and NCIF, particularly in combination, significantly reduced electrolyte leakage, while enhancing total chlorophyll content, flower yield, and stigma biomass and length. The integrated application of 20% VCT and 8 kg ha
conclusionsThese novel findings underscore the synergistic effect of NCIF and VCT to improve saffron stigma yield, quality, and antioxidant properties under challenging soil conditions.
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