Combined agricultural practices in millet and cactus: phyllochron, structural characteristics and relations with yield

Autor(es):Mostrar menos -

Gabriel Italo Novaes da Silva ^[1] ; Alexandre Maniçoba da Rosa Ferraz Jardim ^[2] ; Marcondes de Sá Souza ^[3] ; George do Nascimento Araújo Júnior ^[4] ; José Edson Florentino de Morais ^[5] ; Luciana Sandra Bastos de Souza ^[6] ; Carlos André Alves de Souza ^[7] ; Cleber Pereira Alves ^[8] ; Gherman Garcia Leal de Araújo ^[9] ; Abelardo Antônio de Assunção Montenegro ^[10] ; Breno Leonan de Carvalho Lima ^[11] ; Thieres George Freire da Silva ^[12]

Afiliação do(s) autor(es):Mostrar menos -

^[1] Universidade Federal Rural de Pernambuco. Depto. Engenharia Agrícola - Brasil

^[2] Universidade Federal Rural de Pernambuco. Depto. Engenharia Agrícola - Brasil

^[3] Universidade Federal Rural de Pernambuco. Depto. Engenharia Agrícola - Brasil

^[4] Universidade Federal Rural de Pernambuco. Depto. Engenharia Agrícola - Brasil

^[5] Universidade Federal Rural de Pernambuco - Brasil

^[6] Universidade Federal Rural de Pernambuco - Brasil

^[7] Universidade Federal Rural de Pernambuco. Depto. Engenharia Agrícola - Brasil

^[8] Universidade Federal Rural de Pernambuco. Depto. Engenharia Agrícola - Brasil

^[9] Embrapa Semiárido - Brasil

^[10] Universidade Federal Rural de Pernambuco - Brasil

^[11] Instituto Nacional do Semiárido - Brasil

^[12] Universidade Federal Rural de Pernambuco - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Scientia Agricola; v. 80, 2023-04-07.

Resumo

ABSTRACT Variation in rainfall affects crops; therefore, agricultural practices become essential for forage production in semi-arid regions. This study aimed to evaluate the influence of different agricultural practices on phyllochron, structural characteristics of forage cactus and millet, and their relations with crop yield using the principal component analysis (PCA). The design was in randomized blocks, with six treatments: sole cropped cactus without straw mulching, sole cropped cactus with straw mulching, sole cropped millet without straw mulching, sole cropped millet with straw mulching, and cactus intercropping with millet, with and without straw mulching, each with four replicates. There were three cactus cycles and nine millet cycles (three cycles of cultivars BRS1501 and six of IPA Bulk-1-BF). Biometric parameters were evaluated monthly, while yield was determined after the crop harvest. Phyllochron was determined with the regression analysis. The PCA was applied to structural characteristics and yield. The systems adopted did not influence the structural characteristics of cactus and millet ( p > 0.05), except for cladode thickness, which increased with straw mulching. Phyllochron of the millet reduced when the crop was intercropped. The structural characteristics of cladode length, width, and thickness influenced crop yield, mainly in systems with straw mulching. Straw mulching and intercropping alter phyllochron of cactus and millet. The adoption of straw mulching has a more significant relationship with cactus yield, whereas biometric variables influence crop yield for millet, not the cropping system. (AU)

• Processo FAPESP: 17/22269-2 - Transição para sustentabilidade e o nexo água-agricultura-energia: explorando uma abordagem integradora com casos de estudo nos biomas Cerrado e Caatinga
• Beneficiário: Jean Pierre Henry Balbaud Ometto
• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático