Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/1737

Title: The yield pattern considering the distance to flow accumulation lines
Authors: Marques da Silva, José Rafael
Silva, Luis Leopoldo
Keywords: Distance to flow lines
yield variability
yiel pattern
Irrigated maize
Distancia a linhas de escoamento
variabilidade da produção
padrão da produção
milho
Issue Date: 2008
Publisher: Elsevier
Abstract: Precision agriculture techniques imply a spatial management of fields and to do so a good understanding of the spatial and temporal variability of yield is needed. Average yield data from seven irrigated maize fields were used to study the yield pattern considering the distance of plants to flow accumulation lines. It was found that there is a significant correlation between average yield and distance to flow accumulation lines (DFL). This correlation is best represented by a polynomial function. The most common shape of the yield pattern curve considering the distance to flow accumulation lines shows that there is an increase in average yield with DFL from 0 to 12.5–17.5 m. Near the flow lines the average yield presents lower values due to drainage problems causing plant growth problems. It was also observed higher yield variability near the flow lines. For higher distances from the flow lines there is a continuous decrease in average yield due to less water availability and other variations of soil properties.
URI: http://hdl.handle.net/10174/1737
ISSN: 1161-0301
Type: article
Appears in Collections:ERU - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica
ICAAM - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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