... mustbe considered.• The functions of the element in the plant • The original sources of the element in the natural world (other than decaying matter from other organisms) and the nutrient’s abundance ... yellow-ing of the leaves and other green parts of the plant (Figure 1.2).Often, chlorosis is first evident in the spaces of the leaves between the veins, and then spreads to the veins. In extreme ... ate4Introduction to Plants and Plant Nutrition today, whether eggs, cereal, or bacon, was derived, ultimately,from plants. Plants also produced the raw materials for the clothes you are wearing, whether cotton,...