Soil testing is important to determine fertilizer needs and maximize crop yields while avoiding over- or under-fertilization. The best approach is frequent soil tests followed by low-level, regular fertilizer applications. Soil tests measure nutrient levels and identify deficiencies, while tissue tests directly measure plant nutrient uptake. Professional lab testing using validated methods provides the most accurate results, identifying nutrient levels and soil properties to determine appropriate fertilization.

1. Soil Testing

16. Professional testing

23. How to use test kit