Abstract
Taking account of the market situation, we have taken up cyclamen, begonia, zygocactus and clivia for our consideration and examined the planning of optimum use of greenhouse bench space. The previous paper treated a case where the same production plan is assumed to be repeated every year. In recent years, due to the lowering of interest rates, many potted flower producers have built new greenhouses on the site of an old one or on a vacant lot in the same compound. In view of this trend, this paper has dealt with optimization of long-term planning of potted flower production for a period of several years after the construction of a new greenhouse. In this examination, we have paid special attention to efficient use of greenhouse bench space, profitability and growth properties of the flowers. Moreover, making use of the model we have constructed, we have also examined the way in which we should implement a shift from the current production system to an optimum one.
