"In the uptake of nutrients from the soil food web, sulphur is the catalyst for carbon chemistry, boron gives us sap pressure and silicon builds the capillary action that transports plant sap. Only then can calcium, magnesium and amino acids be delivered to cell division sites for chlorophyll manufacture. As chlorophyll catches light, phosphorous transfers energy into sugar production—after which a mix of sugars and more complex products follow potassium through the silica pathways to provide energy or its storage wherever required in the plant."
Hugh Lovel