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Marcelo Carvalho

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Articles

Impact of the Cretaceous-Paleogene event on sedimentary organic matter in southern high-latitude regions

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By Marcelo Carvalho, Leslie Manríquez, Gustavo Santiago, Joseline Manfroi, Marcelo Leppe, Paula Andrea Sucerquia, Ariel B. Monteiro, Renato R. C. Ramos, Sandro Marcelo Scheffler, Guilherme Krahl, Gerson Fauth, Cristine Trevisan
| Nature Verified
Abstract The Cretaceous–Paleogene (K/Pg) boundary marks one of Earth’s significant mass extinctions, disrupting terrestrial and marine ecosystems. We investigate sedimentary organic matter and geochemical proxies from two high-latitude K/Pg sections: El Puesto (continental, Chilean Patagonia) and Filo Negro (marine, Seymour Island, Antarctica).
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Soybean pod and grain rot: advances in knowledge about the disease.

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By Marcelo Carvalho, Embrapa Cerrados
| revistacultivar.com
By Austeclínio Lopes de Farias Neto, researcher at Embrapa Cerrados 10/08/2026 15:11 10.08.2026 | 15:11 (UTC -3) Soybean pod and grain rot has been causing losses to producers since the 2018/2019 harvest, especially in the state of Mato Grosso, affecting grain quality and crop productivity.
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The artificial intelligence revolution in the field

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By Vinicius Fonseca, Marcelo Carvalho, Embrapa Cerrados
| revistacultivar.com
For decades, the evolution of agriculture has been linked to mechanization. Subsequently, equipment evolved through software and more comprehensive precision agriculture solutions, combined with connectivity. Now, we are entering a new phase of this journey: the age of artificial intelligence. What we are experiencing in the field today goes far beyond the adoption of new technology.
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