Soil nitrate test kit is designed specifically for agricultural applications

• Test nitrate levels in soil
• Four- or 20-test kits

We have finally found an easy-to-use soil nitrate test that will give you results in 30 minutes. Now you can eliminate the hassles, time and expense of sending samples to a lab. Everything you need to test nitrate levels is included in each kit, including a standard to compare to the color of your individual samples. Optimize yields and save money on expensive fertilizers by testing your soil nitrate-N content. Testing range is 0-50 ppm and standard is 25 ppm nitrate-N (150 lbs. N/acre). This is the optimal soil nitrate level for optimal corn yields. Four-test kits include one standard, and 20-test kits include five standards. Instructions included. USA made. Specify either four- or 20-test kit.
NOTE: 1 ppm nitrate-N = 4.4 ppm nitrate.