By Blake Jackson
Kick off the gardening season on the right foot by testing your soil as soon as it becomes workable. A soil test provides valuable information about nutrient levels and pH balance two essential factors for healthy plant growth and productive gardens.
“A soil test is the first step for building healthy soil and ensuring gardening success,” says Rasel Parvej, director of the University of Missouri Soil and Plant Testing Laboratory.
According to MU Extension horticulture specialist Kathi Mecham, early spring or fall is the ideal time to sample soil. Testing offers several advantages: it helps gardeners avoid buying fertilizers they do not need, reduces the risk of nutrient runoff that can harm the environment, and supports the growth of stronger vegetables, flowers, and lawns.
By following soil test recommendations, gardeners can apply nutrients precisely where needed. Soil analysis may also uncover contaminants such as lead, which is particularly important in urban settings.
“Although our regular soil test does not include lead or other heavy metals, the MU Soil and Plant Testing Lab offers heavy metal package that includes lead (Pb), arsenic (As), cadmium (Cd), chromium (Cr), cobalt (Co), antimony (Sb), etc.,” says Parvej.
Test results outline nutrient deficiencies or excesses and identify soil pH, which affects how well plants absorb nutrients. The lab provides clear guidelines on correcting imbalances, and MU Extension specialists are available to help interpret findings.
Proper fertilization also prevents excessive growth that can lead to extra pruning and plant stress. Overfertilized plants are often more vulnerable to pests and disease.
For detailed guidance, gardeners can review the MU Extension publication of Soil Sampling Depth and Collection Techniques for Soil Fertility and Soil Health Testing.
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Categories: Missouri, Crops, Fruits and Vegetables