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Simulating maize yield in sub‑tropical conditions of southern Brazil using Glam model PAB
Bergamaschi,Homero; Costa,Simone Marilene Sievert da; Wheeler,Timothy Robert; Challinor,Andrew Juan.
The objective of this work was to evaluate the feasibility of simulating maize yield in a sub‑tropical region of southern Brazil using the general large area model (Glam). A 16‑year time series of daily weather data were used. The model was adjusted and tested as an alternative for simulating maize yield at small and large spatial scales. Simulated and observed grain yields were highly correlated (r above 0.8; p<0.01) at large scales (greater than 100,000 km²), with variable and mostly lower correlations (r from 0.65 to 0.87; p<0.1) at small spatial scales (lower than 10,000 km²). Large area models can contribute to monitoring or forecasting regional patterns of variability in maize production in the region, providing a basis for agricultural...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Crop modeling; Crop parameters; Crop‑weather relationships.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000200002
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