How does magnesium affect plant growth?

However, the most important role of magnesium is as the central atom in the chlorophyll molecule. Chlorophyll is the pigment that gives plants their green color and carries out the process of photosynthesis. It also aids in the activation of many plant enzymes needed for growth and contributes to protein synthesis.Click to see full answer. Similarly, you may ask, how does lack of magnesium affect plant growth?Magnesium has an important role in photosynthesis because it forms the central atom of chlorophyll. Therefore, without sufficient amounts of magnesium, plants begin to degrade the chlorophyll in the old leaves. Thus low amounts of Mg lead to a decrease in photosynthetic and enzymatic activity within the plants.Likewise, what is a good source of magnesium for plants? The most common soluble sources of magnesium to use as fertilizer are magnesium sulfate (containing 10% Mg and 14% S, also known as Epsom salt), sulphate of potash magnesia (containing 11.2% Mg, 22% S, and 22% K2O, commercially sold as K-Mag), and magnesium oxide (containing 55% Mg, also known as magnesia). Also, what role does magnesium play in plant growth? Magnesium in Plants and Soil. Magnesium is an essential plant nutrient. It has a wide range of key roles in many plant functions. One of the magnesium’s well-known roles is in the photosynthesis process, as it is a building block of the Chlorophyll, which makes leaves appear green.What happens to plants with too much magnesium?A little extra magnesium is not particularly harmful. When growing in soil, excessive quantities of magnesium do not appear quickly. Too much magnesium inhibits the uptake of calcium, and the plant displays general symptoms of an excess of salts; stunted growth, and dark-coloured vegetation.