Space modeling comparison in the citrus culture
Comparação de modelagem espacial na cultura do citros
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Citrus is one of the most important activities in the northwest of São Paulo, demanding high investments and the use of irrigation has been increasing as a requirement for the viability of the activity, the need for high productivity in the region with the highest rates of evapotranspiration and water deficit of the state. The objective of this project was to determine the actual evapotranspiration of citrus and the crop coefficients in the different phenological stages under rainfall conditions and different irrigation systems, using combined techniques of remote sensing and climatic variables obtained from meteorological stations applying and validating SAFER and the FAO 56 on a large scale. The SAFER estimated harvest values were lower than those suggested by the FAO, which stimulates more research on the subject, considering that it is the first study to estimate the use of water by citrus in the northwest region of São Paulo, which combines information collected in the soil (agrometeorological stations) with orbital satellite images.
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