Data/hora: 13/06/2024 04:14:57

Provedor de dados: | 91
País: | Brazil
Título: | Nitrogen efficiency in oats on grain yield with stability
Autores: | Silva,José A. G. da; Goi Neto,Constantino J.; Fernandes,Sandra B. V.; Mantai,Rubia D.; Scremin,Osmar B.; Pretto,Rafael.
Data: | 2016-12-01
Ano: | 2016
Palavras-chave: | Avena Sativa; C/N; Predictability; Biometric models; Optimization.
Resumo: | ABSTRACT Nitrogen (N) is the nutrient most absorbed by the oat crop. Unfavorable climate conditions decrease its efficiency, generating instability and reduction in yield. The objective of this study was to improve N use efficiency in oat grain yield by the economic value of the product and of the input and by models that scale the stability, considering systems of succession of high and reduced residual-N release in favorable and unfavorable years for cultivation. The study was conducted in the years 2013, 2014 and 2015 in two systems of succession (soybean/oat, maize/oat) in randomized blocks with eight replicates, using the N-fertilizer doses of 0, 30, 60 and 120 kg ha-1. The N-fertilizer dose for maximum economic efficiency in oats should be considered based on the meteorological trends of the cultivation year. N use optimization by models that determine the stability is an innovative proposal to increase fertilization efficiency on the yield. The N-fertilizer dose of 60 kg ha-1 promotes greater efficiency with predictability and yield, regardless of the agricultural year and the system of succession.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001201095
Editor: | Departamento de Engenharia Agrícola  - UFCG
Relação: | 10.1590/1807-1929/agriambi.v20n12p1095-1100
Formato: | text/html
Fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental  v.20 n.12 2016
Fonte: | info:eu-repo/semantics/openAccess