A highly accurate method for determining and recording colour resulting from nutrient deficiency in plant tissues.
Contains 320 matte colour chips permanently mounted on charts for 17 hues: 2.5R, 5R, 10R, 2.5YR, 5YR, 7.5YR, 2.5Y, 5Y, 2.5GY, 5GY, 7.5GY, 2.5G, 5G, 7.5G, 5BG, 2.5B and 5RP.
- Instructions and binder included.