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NPK Test Kit
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Specifications at a Glance:

  • 1-3/4" L x 1/2" D x 2-3/4" H
  • Includes bottles, caplets and color charts.
  • Distilled water is recommended for testing.

More Information:

NPK Test Kit

Place Your Order Here

NPK Test Kit - Item #34-972

$19.95
Qty.   

What is Ailing My Plants?

If your plants are looking sickly and stunted, but no pests are evident, poor nutrition may be to blame. This NPK Test Kit tells you exactly which fertilizer you need – nitrogen, phosphorus or potassium.

  • Also includes 10 pH tests
  • Test before you fertilize and save money!

  • REVIEW SNAPSHOT®

    by PowerReviews
    NPK Test Kit
     
    3.8

    (based on 19 reviews)

    83%

    of respondents would recommend this to a friend.

    Pros

    • Easy to use (14)

    Cons

      Best Uses

      • Vegetable gardens (13)
      • Flower gardens (6)
      • Grass (4)
        • Reviewer Profile:
        • Avid gardener (15), Getting started (3)

      REVIEWS

      Reviewed by 19 customers

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      Displaying reviews 1-10

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      (1 of 1 customers found this review helpful)

       
      5.0

      Great product

      By tim

      from Hale, MI

      About Me Avid Gardener

      Verified Buyer

      Pros

      • Easy to Use

      Cons

        Best Uses

          Comments about NPK Test Kit:

          Terrific to adjust the soil

          (1 of 2 customers found this review helpful)

           
          5.0

          No P....Who knew?!

          By Urban Farmer

          from Bethlehem, PA

          About Me Avid Gardener

          Verified Buyer

          Pros

          • Easy to Use
          • Organic

          Cons

            Best Uses

            • Flower Gardens
            • Grass
            • Vegetable Gardens

            Comments about NPK Test Kit:

            So I order 18 tons of organic topsoil to fill my new (and huge) garden of raised beds, and I figure I'd better not take the seller's word for it. I should know for myself what I'm feeding my plants. Got the test kit. Did all the tests. Lo and behold, my 18 tons of glorious dirt has barely a trace of phosphates. Needed to be acidified, too. While I'm not impressed with my expensive dirt, I love the test kit!

             
            1.0

            Bad Test Kit

            By Dino

            from Lorton Virginia

            About Me Getting Started

            Verified Buyer

            Pros

              Cons

                Best Uses

                  Comments about NPK Test Kit:

                  [...]. Most of the instructions are vague and assume knowledge of how much soil to add to test the soil. Most instructions are not in English.

                  (1 of 1 customers found this review helpful)

                   
                  3.0

                  is it reliable?

                  By Woodcutter

                  from Philadelphia, PA

                  About Me Avid Gardener

                  Verified Buyer

                  Pros

                  • Easy to Use

                  Cons

                    Best Uses

                      Comments about NPK Test Kit:

                      After years of failing to send out soil samples, we found this kit and gave it a try. Have used it on three different samples from very different areas of our 3 acres, and the results are pretty similar, which makes me a little suspicious. Too soon to tell if what the test recommended is correct. But it's easy to use, and if the results are reliable, then it's worth it. After a month or two, I'll return to report how the plants did.

                       
                      3.0

                      Confusing instructions

                      By dottie

                      from Mid TN

                      About Me Getting Started

                      Verified Buyer

                      Pros

                      • It did give results

                      Cons

                      • Messy

                      Best Uses

                      • Vegetable Gardens

                      Comments about NPK Test Kit:

                      Needed more instructions, larger print. It was so small difficult to get dirt in and wasn't certain where to put it.

                       
                      4.0

                      EASY TO USE

                      By PLANT GIRL

                      from PALATINE, IL.

                      About Me Avid Gardener

                      Verified Buyer

                      Pros

                      • Easy to Use

                      Cons

                      • none

                      Best Uses

                      • Vegetable Gardens

                      Comments about NPK Test Kit:

                      I STARTED A BRAND NEW VEGIE GARDEN AND THIS PRODUCT HELPED ME DETERMINE WHAT THE SOIL WAS LACKING. THEN I WAS ABLE TO AMMEND THE SOIL ACORDINGLY.

                      (1 of 1 customers found this review helpful)

                       
                      4.0

                      Where's the beef

                      By Tim

                      from Portage WI

                      About Me Avid Gardener

                      Verified Buyer

                      Pros

                      • Easy to Use

                      Cons

                      • Can I get more capsuals

                      Best Uses

                      • Vegetable Gardens

                      Comments about NPK Test Kit:

                      I have used it 2 times I will run out of indicater before the summer is over And that would be tragic for something that works so well.

                      (1 of 1 customers found this review helpful)

                       
                      4.0

                      Who knows?

                      By farmer jones

                      from arnold missouri

                      About Me Avid Gardener

                      Verified Buyer

                      Pros

                      • Accelerated Growth
                      • Easy to Use
                      • Vibrant Plant Color

                      Cons

                      • Messy

                      Best Uses

                      • Flower Gardens
                      • Grass
                      • Potted Plants
                      • Vegetable Gardens

                      Comments about NPK Test Kit:

                      The test kit said I needed Nitrogen and the ph was very high. I added the prescribed ingredients and my plants do look much better this year. So I guess it told me the right things. We'll see how it turns out.

                       
                      5.0

                      works really well

                      By Janet the nurse

                      from Little Rock Arkansas

                      About Me Avid Gardener

                      Verified Buyer

                      Pros

                      • Easy to Use

                      Cons

                        Best Uses

                          Comments about NPK Test Kit:

                          I use this kit to test the compost coming out of the bin before I place it on my garden. I can therefore fix the potential problem by adding the needed item to my compost tumbler, turning it a bit and use the finish compost on my garden in a day or so.

                           
                          4.0

                          Good product

                          By C&T

                          from Colorado

                          About Me Avid Gardener

                          Verified Reviewer

                          Pros

                          • Easy to Use
                          • Simple

                          Cons

                            Best Uses

                              Comments about NPK Test Kit:

                              Helpful in amending soil

                              Displaying reviews 1-10

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