CULTIVATION METHOD USING NUTRIENT FLUID OF CHRYSANTHEMUM FOR CUT FLOWER

摘要

PURPOSE: To cultivate a chrysanthemum of a good quality and shape, by controlling an amount of nitrogen fertilizer. ;CONSTITUTION: A fertilizer is fed accordingly after setting a curve composed of a cubic or 4th polynomial expression derived by a growth curve of a chrysanthemum of one flower on each stalk type for cut flower, as a nitrogen fertilizer feeding base curve f (x) having a variable (x) of number of days after polling of the chrysanthemum for cut flower, establishing a total nitrogen feed amount per one stump from polling to harvesting beforehand, and fixing an amount of the nitrogen feed amount for the chrysanthemum for cut flower after the polling, based on a value f (x) obtained by the above number of days (x) and by using S-shaped curve position of the above curve f (x).;COPYRIGHT: (C)1995,JPO