What is the Best Soil Mix for Vegetable Gardens?
What is the Best Soil Mix for Vegetable Gardens?. Modifying less-than-optimum soil for the vegetable garden is a long-term process. Nature does not always provide homes the right combination of soil structure and pH. Knowing what is best helps provide a guideline for bringing your soil into better focus.
Modifying less-than-optimum soil for the vegetable garden is a long-term process. Nature does not always provide homes the right combination of soil structure and pH. Knowing what is best helps provide a guideline for bringing your soil into better focus.
Measuring Soil
Soil is measured by the underlying structure of its mineral components, pH balance and the amount of organic material present. Having the proper balance for all three makes soil productive.
Good Tilth
Soil with either too much clay or sand is not good. Clay soil is nutritious but has problems getting the nutrients free from the clay and available to the plants. Sandy soil has few nutrients since they all easily wash away. Gardeners can modify a small garden bed or a raised one by adding several cubic yards of topsoil and compost.
pH Balance
A soil that is heavily imbalanced towards the alkaline or acid side is not a good mix. A 7.0 on the pH scale is considered an equal balance with most vegetable plants preferring a pH of about 6.0 to 6.5, or a slightly alkaline tilt. Adding various minerals, such as lime, can change pH, but the treatment only lasts several years.
Compost
Soil with a poor amount of organic material is unhealthy soil. Up to 30 percent of the soil mixture should be compost, according to horticulturist Donald H. Steinegger of the University of Nebraska, with at least a minimum of 10 percent.
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