José Eduardo Creste
UNOESTE - Brazil
José Eduardo Creste graduated in Agronomic Engineering in 1987 by the São Paulo State University (UNESP at Botucatu - SP). He completed his Doctoral degree in Agronomy, in 1996, with emphasis on Fruit Production and worked as Postdoctoral Fellow up to 1999 at UNESP, Botucatu - SP. His research interests involve themes related to the area of mineral nutrition of plants, specifically in assessing the nutritional status of plants.
Since 1999 he works at the University of Western São Paulo (UNOESTE) at Presidente Prudente - SP, focusing on the areas of teaching, research and extension. He is Full Professor in the Graduate Program in Agronomy – emphasis on Plant Production and develops research on assessment of nutritional status of plants. In this sense, he developed leaf patterns for the following crops: lemon, orange, pineapple, grape, banana, tomato, soybean, corn, sugarcane, eucalyptus and coffee, with emphasis on DRIS.
Currently he is taking special attention to the improvement of DRIS in citrus, emphasizing the quality of fruit production and the particularity of standards for different varieties and rootstocks.
Summary of lecture
Assessing the nutritional status of trees using DRIS
The worldwide citrus industry undergoes major changes and among the various cultural practices in high technological systems, an optimization of nutritional management tools becomes essential for productivity gains, quality and reduced production costs.
The DRIS method has contributed to increased productivity in the Brazilian citrus industry. The use of leaf analysis throughout the production cycle and its interpretation by the DRIS allows the citrus grower quickly generate decision-making in the search for nutritional balance by applying via fertilization nutrients diagnosed as deficient. On the other hand, can reduce the fertilizer nutrients diagnosed as excessive.
This procedure has led to gains in productivity and can bring about improvements in production quality. In this sense the DRIS method has been successfully applied in the main producing areas of citrus in Brazil. In irrigated citrus systems, the DRIS method might contribute to the productivity increases due to ease of management of nutrients in fertigation system.