A quantitative analysis for improvement of management of Citrus tamurana Hort. cultivation

The farmers of Citrus tamurana Hort. cultivation in the Miyazaki Prefecture, Kiyotake-cho have achieved more effective management practices in cultivating the crops. The strategy to achieve further way of promoting Citrus tamurana Hort. cultivation farming system was examined in this research. The purpose of this research was to clarify management form, manpower deployed, open cultivable areas and structured green house, cultivars, marketing system, problems associated, demand for the administration etc. In addition, research was directed to assess the method for doing management improvement that yields good farm income. Research was carried out deploying questionnaires and direct observation. The management of Citrus tamurana Hort. was analyzed by linear programming technique. The major problems and demands for path forward to farming system were appropriate time of cultivation, insect-pest management, virus disease diagnosis, creating new way of marketing management and replacing healthy saplings. And total farm income was found to be increased when there is increment in regular farm employment, increased use of insecticide, planting the virus free sapling. It is thus concluded that to promote the improved management more in all the cultivation area and to foster the scale of economy, appropriate application of an insecticide and the introduction of new and vigorous planting materials became a pertinent condition. To establish remunerative management, therefore, the productive chain on administration, an agricultural cooperative, and the farmers of Citrus tamurana Hort. cultivation cooperative would be worthy.