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Weed-Hoeing Periods in Cowpea Cultivation under Direct and Conventional Systems.
de Sousa, Eudinete Ribeiro; de Oliveira Fontes, Larissa; da Costa Filho, José Hamilton; Gurgel, Antonio Leandro Chaves; Fonseca, Wéverson Lima; Zuffo, Alan Mario; Alencar, Daniele Galvão; Silva, Tairon Pannunzio Dias E; de Jesús Lacerda, Julian Junio; Aguilera, Jorge González; García, José Antonio Rodríguez; Zevallos, Renatto Nicolino Motta; Morales-Aranibar, Luis; Luna, Alfredo Modesto Marcavillaca; Gonzales, Hebert Hernán Soto.
Afiliação
  • de Sousa ER; Department of Agronomy, Universidade Federal do Piauí, Bom Jesus 64915-000, PI, Brazil.
  • de Oliveira Fontes L; Department of Agronomy, Universidade Federal do Piauí, Bom Jesus 64915-000, PI, Brazil.
  • da Costa Filho JH; Department of Agronomy, Universidade Federal do Rio Grande do Norte, Macaíba 59280-000, RN, Brazil.
  • Gurgel ALC; Department of Zootechnics, Universidade Federal do Piauí, Bom Jesus 64915-000, PI, Brazil.
  • Fonseca WL; Department of Agronomy, Universidade Federal do Piauí, Bom Jesus 64915-000, PI, Brazil.
  • Zuffo AM; Department of Agronomy, State University of Maranhão, Balsas 65800-000, MA, Brazil.
  • Alencar DG; Department of Agronomy, Universidade Federal do Piauí, Bom Jesus 64915-000, PI, Brazil.
  • Silva TPDE; Department of Zootechnics, Universidade Federal do Piauí, Bom Jesus 64915-000, PI, Brazil.
  • de Jesús Lacerda JJ; Department of Agronomy, Universidade Federal do Piauí, Bom Jesus 64915-000, PI, Brazil.
  • Aguilera JG; Department of Crop Science, State University of Mato Grosso do Sul, Cassilândia 79540-000, MS, Brazil.
  • García JAR; Escuela Profesional de Ingeniería Ambiental, Universidad Nacional de Moquegua (UNAM), Ilo 18601, Peru.
  • Zevallos RNM; National Intercultural University of Quillabamba, La Convenciòn, Cusco 084-282728, Peru.
  • Morales-Aranibar L; National Intercultural University of Quillabamba, La Convenciòn, Cusco 084-282728, Peru.
  • Luna AMM; National Intercultural University of Quillabamba, La Convenciòn, Cusco 084-282728, Peru.
  • Gonzales HHS; Escuela Profesional de Ingeniería Ambiental, Universidad Nacional de Moquegua (UNAM), Ilo 18601, Peru.
Plants (Basel) ; 12(14)2023 Jul 17.
Article em En | MEDLINE | ID: mdl-37514282
ABSTRACT
Weed coexistence with an agricultural crop can negatively affect its growth, development, and yield. From this perspective, this study aimed to evaluate weed management strategies and their effect on the agronomic parameters of cowpea cultivation in direct (SPD) and conventional (SPC) planting systems. The experiment was set up in a completely randomized block design with a split-plot arrangement with four replications. The plots received a source of variation referring to the planting systems (direct and conventional planting), and the subplots corresponded to ten weed management strategies (manual hoeing 18 days after planting (DAP); at 36 DAP; at 54 DAP; at 18 and 36 DAP; at 18 and 54 DAP; at 18 and 72 DAP; at 36 and 54 DAP; at 36-72 DAP; at 18, 36, and 54 DAP; and a control with no hoeing). Density and dry mass evaluations of the cowpea plants were performed at harvest (72 DAP) by determining the number of pods per plant, pod length, number of grains per pod, 1000-grain mass, and yield. A total of 28 species distributed in 12 botanical families were identified in the two cultivation systems. The family Poaceae showed the highest frequency, with 25% of the species identified. At the end of the assay, treatment 20 had the highest positive influence and provided significant quantitative gains to the complex of traits related to cowpea production (SPD and hoeing at 18, 36, and 54 DAP). UPGMA cluster analysis and canonical discriminant analysis were performed and allowed a better classification of the evaluated treatments. It was observed that the first two canonical variables explained 90.8% of the total variance contained in the original variables. The use of SPD with weeding at 18, 36, and 54 days after planting provides greater weed control and significant quantitative gains for the complex of characteristics related to cowpea production. The results underscore the importance of choosing the correct cropping system and implementing effective weeding practices to optimize weed control and improve crop performance.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Clinical_trials / Guideline / Prognostic_studies Idioma: En Revista: Plants (Basel) Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Clinical_trials / Guideline / Prognostic_studies Idioma: En Revista: Plants (Basel) Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil