Emergency and initial growth of maize plants under water deficit and doses of bovine manure

• Autor(a) principal: Souza, Francisco Marto de
• Data de Publicação: 2017
• Outros Autores: Lima, Ellen Caroline Santos, Sá, Francisco Vanies da Silva, Souto, Lauter Silva, Araújo, Jonathan Estivens Soares, Paiva, Emanoela Pereira de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Verde de Agroecologia e Desenvolvimento Sustentavel
• Texto Completo: https://www.gvaa.com.br/revista/index.php/RVADS/article/view/4896
• topic: Zea mays; Adubação orgânica; Água disponível.; Zea mays; Organic fertilization; Available water.

The objective was to study the emergence and initial growth of corn plants fertilized with bovine manure under two water regimes. The experiment was conducted under plastic tunnel conditions of the Federal University of Campina Grande, Campus of Pombal, Paraíba, from December 2014 to January 2015. The treatment arrangement consisted of a 4 x 2 factorial scheme, corresponding to four doses of bovine manure (0.0, 4.0, 8.0 and 12 t ha-1) and two levels of available water of 50 and 100% of the Field capacity, maintained after soil irrigation, with 8 treatments and four replications, totaling 32 experimental units. The experiment was carried out in experimental units composed of vessels of 18 dm3 capacity, manually seeding ten seeds per pot. The plants were conducted for 20 days after sowing, where they were evaluated for emergence, initial growth and accumulation of dry mass. Reducing available water to 50% of field capacity does not influence the emergence and initial growth of maize. The dose of 12 t ha-1 of bovine manure favors the highest initial growth and accumulation of dry mass of maize plants AG 1051.