Data/hora: 16/06/2024 18:26:12

Biblioteca(s): 	Embrapa Clima Temperado.	
Data corrente: 	04/03/2024	
Data da última atualização: 	04/03/2024	
Autoria: 	RODRIGUES, M.; VAHL, L. C.; SILVEIRA, C. A. P.; SALÉ, M. M.; BATISTA, M. A.; NANNI, M. R.	
Afiliação: 	MARLON RODRIGUES, INSTITUTO FEDERAL DO PARANÁ; LEDEMAR CARLOS VAHL, UNIVERSIDADE FEDERAL DE PELOTAS; CARLOS AUGUSTO POSSER SILVEIRA, CPACT; MUSSA MAMUDO SALÉ, UNIVERSIDADE FEDERAL DE PELOTAS; MARCELO AUGUSTO BATISTA, UNIVERSIDADE ESTADUAL DE MARINGÁ; MARCOS RAFAEL NANNI, UNIVERSIDADE ESTADUAL DE MARINGÁ.	
Título: 	Limestone Mining By-Product as a Source of Nutrients for the Cultivation of Onion (Allium Cepa L.).	
Ano de publicação: 	2023	
Fonte/Imprenta: 	Communications in Soil Science and Plant Analysis, v. 54, n. 19, p. 2683–2698, 2023.	
ISSN: 	1532-2416	
DOI: 	https://doi.org/10.1080/00103624.2023.2240371	
Idioma: 	Inglês	
Conteúdo: 	This 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	
Palavras-Chave: 	Formação Irati.	
Thesagro: 	Allium Cepa; Calcário; Mineração.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Clima Temperado (CPACT)	
Exemplares: 	CPACT - (22799-1) - UPC - AP - DD -  -  -  - DIS