Nitrate test kit designed specifically for agricultural applications

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

We have finally found an easy-to-use plant 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. Find out if your plants need additional nitrogen fertilizer or if they are ready to harvest by a change in nitrate levels. Any leaf, stalk or root can be tested. A garlic press or clean pliers is required to extract sap. Testing range is 0-1,000 ppm and standard is 500 ppm nitrate-N. 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.