2023
DOI: 10.55905/rdelosv16.n43-010
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Levantamento fitossociológico de plantas daninhas na cultura do feijao-caupi em sistemas de plantio direto e convencional

Abstract: Objetivou­­-se realizar o estudo fitossociológico das plantas daninhas em área cultivada com feijão-caupi em sistemas de plantio direto (SPD) e convencional (SPC), no município de Bom Jesus - PI. Para cada sistema de plantio, por ocasião da colheita do feijão-caupi, foram realizados 60 processos de amostragem utilizando um quadrado vazado de 0,16 m2, foram realizadas a identificação, contagem e peso seco da biomassa. Densidade, frequência, abundância e dominância relativas foram calculadas e o índice de … Show more

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Cited by 2 publications
(1 citation statement)
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“…In a study carried out by Sousa et al [ 21 ] on a phytosociological survey of the weed community in cowpea cultivated in no-tillage and conventional tillage systems in the region of Vale do Gurguéia, municipality of Bom Jesus, PI, 27 species with a density of 65.24 plants m −2 were verified in the SPC. The highest frequencies were observed for Alternanthera tenella , Mimosa pudica , Richardia brasiliensis , Bidens pilosa , and Cenchrus echinatus , obtaining densities of 11.17, 4.69, 4.69, 4.61, and 4.22 plants m −2 , respectively.…”
Section: Resultsmentioning
confidence: 98%
“…In a study carried out by Sousa et al [ 21 ] on a phytosociological survey of the weed community in cowpea cultivated in no-tillage and conventional tillage systems in the region of Vale do Gurguéia, municipality of Bom Jesus, PI, 27 species with a density of 65.24 plants m −2 were verified in the SPC. The highest frequencies were observed for Alternanthera tenella , Mimosa pudica , Richardia brasiliensis , Bidens pilosa , and Cenchrus echinatus , obtaining densities of 11.17, 4.69, 4.69, 4.61, and 4.22 plants m −2 , respectively.…”
Section: Resultsmentioning
confidence: 98%