Calcium (Ca) is the backbone of every living organism, including plants. Although a plant’s needs for calcium can be as high as its needs for nitrogen and potassium, it is classified as a secondary nutrient. In this post, we examine the importance of calcium and the factors that can limit its availability to plants.

It has been over a decade since the discovery of how plants take up and re-translocate silica (Si), one of the most abundant elements on earth. Further focus on the element has revealed that it plays an important role in alleviating the effects of biotic and abiotic stress; however, still much remains to be understood.