What nutrient does Ash add to soil?

Ash is also a good source of potassium, phosphorus, and magnesium. In terms of commercial fertilizer, average wood ash would be about 0-1-3 (N-P-K). In addition to these macro-nutrients, wood ash is a good source of many micronutrients needed in trace amounts for adequate plant growth.Click to see full answer. Similarly, you may ask, what does Ash add to soil?Wood ash, rich in pH-raising calcium carbonate, can help you achieve soil close to the neutral pH range, which is preferable for many plants. It also adds potassium to soil. Potassium is the “K” in the “N-P-K,” or nitrogen-phosphorus-potassium, fertilizers at garden centers.Additionally, what nutrients does wood ash have? Wood ash is about four percent potassium, and less than two percent phosphorus, magnesium, aluminum, and sodium. The small amounts of these nutrients is the reason that ash is considered a “low grade” fertilizer. In terms of commercial fertilizer, average wood ash would be about 0-1-3 (N-P-K). Subsequently, question is, is Ash good for soil? Benefits for Soil pH Most wood ash contains a good percentage, about 25 percent, of calcium carbonate, an ingredient in garden lime. On the other hand, if your soil is neutral or alkaline, to begin with, adding wood ash could raise the pH high enough to interfere with the plant’s ability to take in nutrients.Do ashes raise soil pH?Wood ash works best if the soil pH level is somewhat acidic, below 6.5. Wood ash is high in calcium content, with the effect of raising soil pH. When wood ash is used at pH levels above 6.5, interference with plant growth may occur as the alkalinity level of the soil increases.