Mineral Deficiencies in Plants

Mineral deficiencies can cause plants to fail and show symptoms of “disease” (technically disorder), but in a well-ordered organic garden they are seldom a problem. When managed organically, most garden soils will provide all the nutrients plants require. Occasionally, especially in alkaline soil, trace elements, although present, may not be soluble due to the high ph, and are therefore unavailable to the plant. On these occasions, additional supplies might be needed. Mineral deficiencies can also be caused by too much of another element; overdo potassium-rich fertilizers, for example, and you may “lock up” magnesium so that plants develop symptoms of magnesium deficiency. Mottling, marking, and even crisping of leaves can all be the result of mineral deficiencies. fruits may also spoil and wither. however, mineral deficiencies are often difficult to confirm from symptoms alone and can easily be confused with diseases, especially viruses.  If a problem persists, it may be necessary to have the soil analyzed professionally	1 Iron deficiency is one of the most common plant disorders and almost always presents as a yellowing of leaves, especially between the veins. It is particularly common in alkaline soil, when it is known as lime-induced chlorosis. 2 Manganese deficiency (on potato leaves), common in poorly drained soil. 3 Phosphorus deficiency (on tomato leaves), often seen in acidic soil. 4 Potassium deficiency (on string beans), often seen in light or sandy soil. 5 Bitter pit in apples, caused by calcium deficiency, also common in light, sandy soil. 6 Boron deficiency on sweet corn; over liming can disrupt the uptake by plants of this trace element