Potassium and Magnesium in Photosynthesis and Photo-oxidative Leaf ..
Function: Sodium is not an essential element for plants but can be used in small quantities, similar to micronutrients, to aid in metabolism and synthesis of chlorophyll. In some plants, it can be used as a partial replacement for potassium and aids in the opening and closing of stomates, which helps regulate internal water balance. Chloride is needed in small quantities and aids in plant metabolism, photosynthesis, osmosis (movement of water in and out of plant cells) and ionic balance within the cell.
Role of potassium in photosynthesis and respiration - AGRIS
Magnesium (Mg), along with calcium and sulfur, is one of the three secondary nutrients required by plants for normal, healthy growth. Don’t be confused by the term "secondary" as it refers to the quantity and not the importance of a nutrient. A lack of a secondary nutrient is just as detrimental to plant growth as a deficiency of any one of the three primary nutrients (nitrogen, phosphorus and potassium) or a deficiency of micronutrients (iron, manganese, boron, zinc, copper and molybdenum). Furthermore, in some plants, the tissue concentration of magnesium is comparable to that of phosphorus, a primary nutrient.
Deficiency: Magnesium is mobile within the plant so deficiency symptoms appear first in older leaves. The symptoms show up as yellow leaves with green veins (i.e. interveinal chlorosis). Magnesium availability is not significantly affected by the pH of a soilless growing medium. However, it does become more available for plant uptake as the pH of the growing medium increases. Magnesium deficiency often is caused by lack of application, but it can be induced if there are high levels of calcium, potassium or sodium in the growing medium.
Huber, “Role of Potassium in Photosynthesis and Respiration,” In R
They called it the "father of all foods." This is interesting as they knew only by evidential experience.
It is only in recent years that we moderns are rediscovering its valuable nutritive properties.
Alfalfa's organic salts are among the richest known, the depth and spread of its roots enabling it to absorb its valuable nutrition as far as 125 feet below the earth's surface.
Alfalfa is a particularly valuable leguminous herb, not only rich in the principal mineral and chemical elements in the constitution of the human body, but it also has many of the trace elements obtained from deep in the soil where the roots reach down 30 to 100 feet.
Alfalfa is rich in quality, quantity and proper balance of Calcium, Magnesium, Phosphorus, Choline (vitamin B), Sodium, Potassium and Silicon in Alfalfa.
Cellular respiration and photosynthesis review
Alfalfa best lends its properties to water.
This means that when an infusion or tea is made from alfalfa leaves, we can obtain 90% of the potassium contained in the dried alfalfa plant, 85% of the magnesium, 75% of the phosphorus, 50% of the nitrogen, and 40% of the calcium when we brew and drink that cup of alfalfa tea.
Speaking of nitrogen, alfalfa is a splendid plant to grow near other plants that need nitrogen.