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- Title
PRODUÇÃO DE MILHO ESTIMADA PELO SOFTWARE AQUACROP E OBTIDA PELA CULTURA SOB DIFERENTES LÂMINAS DE IRRIGAÇÃO.
- Authors
GRAMELISCH SILVESTRE, NATÁLIA; SOUZA VIEIRA, GUSTAVO HADDAD; LOPES ROSADO, THIAGO; MULINARIO POLONI, CARLOS MAGNO; PETERLE, GUILHERME; RODRIGO KRAUSE, MARCELO
- Abstract
The objective of this study was to evaluate the correlation between corn biomass production estimated by AquaCrop software and that obtained by the crop implanted under different irrigation depths. The experiment was carried out in a completely randomized design consisting of 5 treatments (T) of irrigation depths, based on evapotranspiration demand, T1 - 25%, T2 - 50%, T3 - 75%, T4 - 100%, T5. - 125% of crop evapotranspiration (ETc). The simulations were performed by AquaCrop software, having as variables climate, soil, crop and irrigation. For cycle I, variables plant height, yield and total fresh biomass reached the highest values when they received the largest irrigation depths. For cycle II, these variables presented quadratic behavior. The relationship of observed / simulated results to total fresh biomass showed that the values estimated by Aquacrop underestimated those observed in the field during the two crop cycles. While dry biomass values for most of cycle I were also underestimated, for cycle II, T3 and T4 presented an ideal 1: 1 correspondence. The Aquacrop application proved reliable for corn estimation under the conditions of this study, being an interesting tool for crop production and development prediction purposes.
- Publication
Revista IRRIGA - Brazilian Journal of Irrigation & Drainage, 2019, Vol 24, Issue 3, p552
- ISSN
1413-7895
- Publication type
Article
- DOI
10.15809/irriga.2019v24n3p552-568