user table on the opposite page to help you answer this question cabin measure the soil pH on her farm its pH is 8.0 wants to grow onion what type of substance should she at to the salt so that its pH is suitable for growing onions
Answers
Answer:
Grow onions with the rich soil that has the proper pH level, and the only tears you'll shed will be tears of joy. Crunchy onions add flavor, but few calories, to just about everything, from stir fries to burgers. They're also rich in nutrients like vitamin C, fiber and manganese. Before planting onions, which are best suited for U.S. Department of Agriculture hardiness zones 3 through 9, put a little extra time into creating great soil.
Onions and Soil pH
Onions, like most veggies, grow best in slightly acidic soil. Ideally, soil for onions should have a pH level of 5.5 to 6.5, according to the National Gardening Association. At the high end of this range, soil nutrients are most easily accessed. While onions can survive when grown at a different pH level, they won't grow particularly well. To determine soil pH before planting onions, use a store-bought testing kit or take have a sample checked at a university extension office.
Adjusting Soil pH
If soil isn't in the proper pH range for growing onions, it can be adjusted. Amending soil with organic substances, like old leaves, will lower its pH and increase its acidity. Some fertilizers, like ammonium sulfate, will also boost acidity. To make soil more alkaline, Iowa State University recommends treating it with wood ash, which raises pH. Adjusting the pH level of soil takes time, however, and might require multiple treatments until the desired outcome is achieved.
Additional Soil Requirements
Aside from the proper pH level, there are other soil-related factors affecting onions. Many types of soil are suitable for onions, but it needs to be loose and well-drained, as soggy, heavy soil firms up in the sun, making it difficult for onion bulbs to expand and grow. To prevent this problem, mix soil with humus to keep it light and properly drained. Organic matter, mixed into soil, also helps it retain moisture, keeping the shallow roots of onions hydrated.