DETECTION OF NUTRIENT DEFICIENCY IN PLANTS

摘要

A casing (6) for use in a system for estimating a deficiency of a nutrient in a leaf (100) from a plant, and a system and method using such a casing (6). The casing (6) comprises an upper cover (8) adapted to receive an imaging device including a camera (3) and a light source, wherein the upper cover (8) comprises at least one opening (9) to allow the camera (3) and light source to access an interior of the casing (6), a bottom plate (12) having a surface (13) facing the interior of the casing (6), which surface (13) is provided with a pattern including areas having a predefined color, and a side wall (7), wherein, in use, a leaf (100) is placed on the surface (13) and an image (200) is acquired of the leaf (100), whereby the areas allow color calibration of an acquired image.