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The Impact of 9 Years of Swine Wastewater Application on the Mineral and Organic Quality of Soil in Various Agricultural Crops

Maciel, Ana Paula Almeida Castaldelli ; Medeiros, Gabriela ; Machado, Amanda de Souza ; Pilatti, Maria Clara ; dos Reis, Ralpho Rinaldo ; Sampaio, Silvio Cesar

Water (Basel), 2024-05, Vol.16 (10), p.1412 [Periódico revisado por pares]

Basel: MDPI AG

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  • Título:
    The Impact of 9 Years of Swine Wastewater Application on the Mineral and Organic Quality of Soil in Various Agricultural Crops
  • Autor: Maciel, Ana Paula Almeida Castaldelli ; Medeiros, Gabriela ; Machado, Amanda de Souza ; Pilatti, Maria Clara ; dos Reis, Ralpho Rinaldo ; Sampaio, Silvio Cesar
  • Assuntos: Agricultural commodities ; Antibiotics ; biodigester ; Environmental impact ; Farms ; Food security ; Heavy metals ; Manures ; mineral fertilization ; nutrients ; Soil fertility ; Soil testing ; Wastewater
  • É parte de: Water (Basel), 2024-05, Vol.16 (10), p.1412
  • Descrição: This study evaluates the long-term effects of swine wastewater (SWW) on relevant parameters for soil fertility, including calcium (Ca), magnesium (Mg), potassium (K) cations, cation exchange capacity (CEC), and organic matter (OM) in an agricultural area with 9 years of crop cultivation. Three types of SWW (raw, after leaving the biodigester, and after the manure plant) were analyzed with four application rates of SWW (0, 100, 200, and 300 m3.ha−1), associated or not with mineral fertilization, resulting in eight treatments. The study found that the long-term use of SWW had significant effects on soil parameters. Principal component analysis (PCA) was used to summarize the data. The soil’s calcium (Ca), magnesium (Mg), and cation exchange capacity (CEC) levels were higher in soybean compared to other crops and natural soil. Similarly, the treatment with 0 m3.ha−1 of pig manure and without mineral fertilization showed higher levels of these nutrients. In contrast, potassium (K) was found in greater quantities in oats, SWW from the biodigester, higher doses of manure, and with mineral fertilization. The crops had a higher organic matter (OM) content compared to the natural soil, with corn and raw SWW showing the most significant increase.
  • Editor: Basel: MDPI AG
  • Idioma: Inglês
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