Biofertilizers sprayed on leaves and seed furrow in peanut crops

• Autor(a) principal: Betiol, Olavo
• Data de Publicação: 2021
• Outros Autores: Palviqueres, Letícia Pelicioni, Ruiz, Fábio Fiori, Leal , Élcio Rios Pérez, Bolonhezi, Denizart
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: South American Sciences
• Texto Completo: https://www.southamericansciences.com.br/index.php/sas/article/view/140
• topic: Arachis hypogaea L; produtividade de vagens; biomassa vegetativa; ácido glutâmico; Arachis hypogaea L; pod productivity; vegetative biomass; glutamic acid; Arachis hypogaea L; productividad de la vaina; biomasa vegetativa; ácido glutamico

Biofertilizers are important substances for obtaining high yields in peanut crops, because can contribute to reducing biotic and abiotic stresses, as well as stimulating symbiosis with nitrogen-fixing bacteria and other beneficial microorganisms. In order to study the effect of Vorax® biofertilizer and Atmo® inoculant on some agronomic characteristics of peanut cultivars IAC OL-3 and IAC-503, field trials were carried out in LATOSSOLO Vermelho eutroférrico , clayey texture, located at the IAC in Ribeirão Preto/SP. In a randomized block experimental design with four replications, in the 2019/20 season, 5 treatments were studied in the cultivar IAC OL-3: control (T1); 50 mL ha-1 of Vorax® sprayed at 25 (T2); at 25 and 50 (T3), 25, 50 and 80 days after sowing (T4), as well as biofertilizer at a dose of 30 mL ha-1 sprayed together with fungicides from 45 DAS (T5). In the 2020/21 season, the trial with the same design tested 07 treatments in the cultivar IAC 503: control (T1); Atmo® (300 mL ha-1) in the seeding furrow + Synflex® 150 mL ha-1 (T2); T2 + MQL007 (50 mL ha-1) in the seeding furrow (T3); T3 + MQL007 (50 mL ha-1) sprayed at 25 DAS (T4); MQL007 (50 mL ha-1) sprayed at 25 DAS (T5); Vorax® (50 mL ha-1) sprayed at 25, 50 and 80 DAS (T6); T6 + spraying at 100 DAS (T7). It is concluded for the conditions of the experiments that: three sprays of Vorax® (50 mL ha-1) provided significant increases in the order of 27% and 24%, respectively for the cultivars IAC OL-3 and IAC 503, as well as the application in the furrow of the inoculant Atmo® + Synflex® associated with biostimulant MQL007 provided 27% gains in the productivity of IAC 503 pods.