![]() While the supply of total K in soils is quite large, relatively small amounts are available for plant growth at any one time. The total K content of soils frequently exceeds 20,000 ppm (parts per million). Reduces respiration, preventing energy losses.Įnhances translocation of sugars and starch. ![]() Maintains turgor reduces water loss and wilting.Īids in photosynthesis and food formation. Increases root growth and improves drought resistance. If K is deficient or not supplied in adequate amounts, it stunts plant growth and reduces yield.įor perennial crops such as alfalfa, potassium plays a role in stand persistence through the winter. Potassium also helps regulate the opening and closing of the stomata, which regulates the exchange of water vapor, oxygen and carbon dioxide. The production of ATP can regulate the rate of photosynthesis. It’s involved with enzyme activation within the plant, which affects protein, starch and adenosine triphosphate (ATP) production. Potassium is associated with the movement of water, nutrients and carbohydrates in plant tissue. In addition, you’ll find information about soil tests, K sources, predicting potash needs and effectively applying K to your fields. Here, we’ll give you a basic understanding of K, including plants’ K nutrition, how it reacts in soils, its function in plants and its role in efficient crop production. Minnesota soils can supply some K for crop production, but when the supply from the soil isn’t adequate, a fertilizer program must supply the K. It’s classified as a macronutrient because plants take up large quantities of K during their life cycle. ![]() Potassium (K) is an essential nutrient for plant growth. ![]()
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