02279naa a2200253 a 450000100080000000500110000800800410001902200140006002400550007410000180012924501270014726000090027452014920028365000160177565000140179165000160180565300210182170000160184270000230185870000170188170000190189870000170191777300910193421625712024-03-04       2023    bl uuuu     u00u1 u    #d  a1532-24167 ahttps://doi.org/10.1080/00103624.2023.22403712DOI1 aRODRIGUES, M.  aLimestone Mining By-Product as a Source of Nutrients for the Cultivation of Onion (Allium Cepa L.).h[electronic resource]  c2023  aThis study aims at assessing the effect of limestone mining by-product from the Irati Formation on soil calcium, magnesium, and sulfur contents, as well as their accumulation in the onion biomass. The study was carried out in a greenhouse. A Eutrophic Haplic Planosol (SXe) and a Eutrophic Yellow Argisol (PAe) soil were used. The treatments included the control, limestone by-product, dolomitic limestone, calcium (Ca) + magnesium (Mg) carbonates, and Ca + Mg carbonates + gypsum. Onions were grown in pots containing 10 dm3 of soil kept at a moisture level close to the field capacity. The onion biomass harvest (bulb + leaves) was performed 77 days after transplanting. Afterwards, the soil macronutrient content and the dry onion biomass were determined, as well as its production. The by-product application increased Mg2+ content in both soils (+74% in SXe and + 182% in PAe) and Ca2+ and sulfate (S-SO42-) contents, respectively, in the PAe (+62%) and SXe (+124%). There was an increase in S accumulation due to the onion biomass cultivated in both soils (about 85%). Regarding Ca and Mg accumulations, no difference was observed in the by-product treatment when compared to the control. Therefore, it is possible to infer that the limestone mining by-product from the Irati Formation is potentially useful as a source of secondary macronu-trients and proves to be a clean environmental solution for soil fertilization, increasing the sustainability of the local production system  aAllium Cepa  aCalcário  aMineração  aFormação Irati1 aVAHL, L. C.1 aSILVEIRA, C. A. P.1 aSALÉ, M. M.1 aBATISTA, M. A.1 aNANNI, M. R.  tCommunications in Soil Science and Plant Analysisgv. 54, n. 19, p. 2683–2698, 2023.