ESTIMATING METHOD FOR SHOOT NITROGEN LEVEL IN 'FUJI' AND 'HONGRO' APPLE TREES

摘要

The present invention relates to a method for estimating a nitrogen level through the color expression of bark in Fuji and Hongro apple trees, and more specifically, to a method for estimating a nitrogen level in apple trees according to the color of bark by measuring the color of bark of various apple trees. According to the present invention, a nitrogen level in apple trees can be accurately measured in winter through a simple method, thereby enabling the successful management of a fruit garden.