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Technological advances to search for sustainability of the productive chain of staked tomato - phosphorus fertilization

Grant number: 12/05995-8
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): June 01, 2012
Effective date (End): May 31, 2014
Field of knowledge:Agronomical Sciences - Agronomy - Crop Science
Cooperation agreement: CNPq - REPENSA
Principal researcher:Roberto Botelho Ferraz Branco
Grantee:Tais Gabriela de Souza Gimenes
Home Institution: Departamento de Descentralização do Desenvolvimento (APTA Regional). Secretaria de Agricultura e Abastecimento (São Paulo - Estado). Campinas , SP, Brazil


It will be conduct two experiments with modes and split application of phosphorus fertilizer in tomato cultivation staked in an Oxisol clayey in no-tillage system. These experiments are part of a project covered by CNPq (Notice rethinks - MCT / CNPq / MEC / CAPES / CT AGRO / CT Hydro / FAPS / EMBRAPA No. 22/2010) to ensure sustainability of the of tomatoes chain with reduced agricultural inputs for the cultivation of the crop. In an experiment will be studied the mode of application of phosphate fertilizer in tomato, with experimental design in a randomized block factorial (3 x 2) with four replications, with treatments consisting of three modes of application of phosphate fertilizer and two tomato hybrids. In another experiment will be studied the percentage of phosphorus applied at planting and sidedress with randomized complete block design with five replications and five treatments with variations in the amount of phosphorus applied at planting and hedging. In both experiments will be evaluated the agronomic characteristics of tomato of the leaf area, leaf nutrient content in the diagnosis of nutritional status, root growth, yield and fruit classification. Data will be analyzed by F test analysis of variance and means compared by Tukey test at 5% probability using the program SAS. The grantee will have the opportunity to participate and assist in the all experimental stages in the field as well as in the interpretation of results and in the writing of abstracts for conferences and scientific papers. (AU)