Model for indication of nitrogen fertilization in wheat using vegetation sensor.
2023
VIAN, A. | BREDEMEIER, C. | PIRES, J. L. F. | TRENTIN, C. | DRUM, M. A. | CASSINELLI, A. A. | ZENI, M. | CARAFFA, M. | SANTOS, F. L. DOS | ANDRÉ L. VIAN, FEDERAL UNIVERSITY OF RIO GRANDE DO SUL; CHRISTIAN BREDEMEIER, FEDERAL UNIVERSITY OF RIO GRANDE DO SUL; JOAO LEONARDO FERNANDES PIRES, CNPT; CAROLINA, UNIVERSITY OF PASSO FUNDO; MAICON A. DRUM, FEDERAL UNIVERSITY OF RIO GRANDE DO SUL; ALEXANDRE A. CASSINELLI, FEDERAL UNIVERSITY OF RIO GRANDE DO SUL; MANUELE ZENI, UNIVERSITY OF PASSO FUNDO; MARCOS CARAFFA, TRÊS DE MAIO EDUCATIONAL SOCIETY; FRANCIANE L. DOS SANTOS, FEDERAL UNIVERSITY OF RIO GRANDE DO SUL.
This study aimed to develop a model for the indication of topdressing nitrogen fertilization as a function of nutritional N demand using NDVI. Data from field experiments conducted in four regions of the State of Rio Grande do Sul, Brazil, during the 2015, 2017, 2018, and 2019 agricultural years using cultivars with significant sowing areas in the state, were used to construct the model.
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