Classificação de semeadoras-adubadoras de precisão para o sistema plantio direto conforme o indice de adequação

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

No-Tillage Farming is consecrated in agriculture nowadays. However many information is still far from the farmers, especially those related to the technology used by the machinery manufacturers in offering no-till and precision models planting and fertilizing equipment. The most important information vehicle about the planters is the manufacturer s catalogue, which objective is to show the major techniques characteristics of the machine models in a concise manner. So, considering those facts, with bibliographical analysis and practical experience a hypothesis was established, that those catalogue data can be processed with data systematization techniques and electronic informative computer science resources. It produces a census study related to the technological variability offered by the Brazilian models of planting-fertilizing machines, what is also possible based on the index numbers theory to establish a parameter that express each model characteristics and permits to classify the machines according with its techniques characteristics. The objective of this work was to systematize the data of a set of 93 planting machine catalogues, which represent 90% of the national market approximately. A data base was constructed and further used to provide information to the application of the statistical analysis. This made possible the knowledge of the techniques characteristics of models of direct planting and fertilizing precision machine offered by the Brazilian manufacturers and their classification based in theirs characteristics. Each machine s data base enclosed 40 techniques characteristics and 15 of them was selected for the statistical analysis and, amongst these, 7 had been used in the formularization of a number index, called "Index of Adequacy". From this, it was possible to classify 250 models in 5 different categories: in the A and B categories, for small and medium properties 73% was fitted; 19% compounded the category C, for the medium and big properties and 8% of the machines were classified in the categories D and E, for the largest properties. The results showed that the survey of the machine catalogue data, furnished by the manufacturers permits a detailed analysis of the techniques characteristics of the precision and direct planting and fertilizing machines and that the models available in the market can be classified using an index number or adequacy index, that synthesize the catalogues data.

ASSUNTO(S)

direct planting plantio direto numeros indices (economia) data base index numbers mecanização mechanization banco de dados

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