Sulfur, calcium and magnesium sometimes being referred to as secondary nutrients, they, the calcium, magnesium, and sulfur are very important and often are required as fertilizer or as soil amendments. Calcium, magnesium, and sulfur are essential plant nutrients.

They are called “secondary” nutrients because plants require them in smaller quantities than nitrogen, phosphorus, and potassium. On the other hand, plants require these nutrients in larger quantities than the “micronutrients”.

Calcium Deficiency in Plants

Calcium Deficiency symptoms include death at the growing point, abnormally dark green foliage, weakened stems, shedding flowers, and any combination of these.

Magnesium Deficiency in Plants

Interveinal chlorosis is a Magnesium deficiency symptom in crops such as legumes, corn, sorghum, cotton, and certain leafy vegetables. (Interveinal chlorosis is a yellowing between the veins while the veins remain green.) The leaves may become pink to light red and may curl upward along the margins.

Sulfur Deficiency in Plants

Sulfur deficiency symptoms show on young leaves first. The leaves appear pale green to yellow. The plants are spindly and small with retarded growth and delayed fruiting.

For a rapid correction of a deficiency, use one of the quality CMS Conditioners such as Agropower Biotech’s Special CMS Soil Conditioner.