Economic feasibility of optical sensors for variable rate nitrogen fertilization in corn
Rodrigo Nogueira-Martins,
Francisco de Assis de Carvalho Pinto,
Altair Dias de Moura
et al.
Abstract:This study aimed to determine the economic feasibility of the chlorophyll meters SPAD-502 and ClorofiLOG CFL1030 for nitrogen fertilization management in corn using deterministic and probabilistic models for small farms. To do so, representative cash flows for corn production were analyzed using three variable rate fertilization systems based on different nitrogen sufficiency indices. Thus, for each system, eight scenarios of different-sized cultivation areas and two sampling methodologies of the chlorophyll m… Show more
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