Abstract

CARDENAS-HIDALGO, D et al. The nutritive solution, vermicompost and mycorrhizae on the yield and quality of Lilium hybrida ‘Indian Summerset’. Biotecnia [online]. 2022, vol.24, n.3, pp.5-14.  Epub June 19, 2023. ISSN 1665-1456.  https://doi.org/10.18633/biotecnia.v24i3.1462.

Lilium is one of the most important crops in the State of Mexico. Its high production volumes, associated with the use of large amounts of chemical fertilizers, increases soil salinity and alter its physical-chemical and biological properties. The objective was to evaluate the effect of ammonium concentrations in the nutrient solution, vermicom-post and mycorrhizae supplies, as well as their interactions, on the growth and quality of Lilium hybrida var. ‘Indian Summerset’. Bulbs were planted in boxes with sandy loam soil, with or without vermicompost and/or mycorrhizae. Irrigation was carried out with Steiner’s solution at 0.24 atm with three nitrate:ammonium ratios of 100:0 %, 92.5:7.5 % and 87.5:12.5 %, comparing with conventional fertilization. A completely randomized design was conformed with a 4x2x2 factorial arrangement, the factors were ammonium, vermicompost and mycorrhizae. The nutritive solution with 12.5 % ammonium increased plant height, dry weight, the K concentration in leaf, and advanced flowering and cut-off point. The contribution of vermicompost and mycorrhizae to the soil did not show significant differences in the quality variables. Vermicompost at 5 % increased the concentration of nitrogen and potassium in leaves.

Keywords : plant nutrition; ammonium; mycorrhizae; nitrates; vermicompost.

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