Why did I buy pH test strips?
6 years ago
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My new pH meter: Accurate pH8
Comments (19)My buddy bought an Accurate 8 meter to test aside mine. When inserted into the same hole at various pH levels the two meters were within 0.2 pH units. Of course both could be wrong but the readings make sense relative to plant responses. Recently I tried blood meal for the first time on some potted blueberries. About a week later I took pH readings just to monitor things. At first I thought the meter was off because readings were high. But now I think the blood meal raised pH. After switching back to ammonium sulfate the pH is now back to the 4.5-5 I want. So I'm still pleased and think the meter has already paid for itself....See MoreLitmus paper pH test results -- accurate?
Comments (15)For anyone interested... Here are the latest litmus results after using distilled water to wet the materials overnight before testing... Recall that the litmus was showing distilled water which we know is neutral as a pH of 6, so I've added one point to get the following... peat: 7 homemade kitchen compost: 7 red scoria: 7+ tap water: 8 black scoria: 8+ fresh horse manure: 8+ i know these results are not very accurate, but I still feel comfortable mixing the black scoria with compost or peat to make a potting mix, but I'm not as comfortable now using the black scoria as a garden amendment; instead I'll use the red, which seems to have a nicer, lighter, more porous texture anyway. The horse manure that I've been using extensively in the garden (never thinking about it's pH before), I am considering composting together with gypsum before adding to the soil. I'm not going to change everything I do based on this shaky litmus paper, but I think it's enough evidence that I should modify things slightly. Any comments on this? Thanks...See MoreTesting Soil/Water pH
Comments (10)Iron becomes locked in insoluble compounds in high alkalinity, so the plants become chlorotic. The higher the alkalinity, the more chlorotic, therefore the more nearly white the foliage and flowers. Acidifying the soil releases the iron, resulting in more traditionally colored plants and flowers. Nitrogen acidifies as well as aluminum sulfate. Ironite has nitrogen and iron specifically formulated for our alkaline conditions. It's very difficult to burn with it, but it WILL permanently stain concrete, clothing, siding and patio furniture with rust from the iron. It's really good stuff and quite easy and effective to use. If your plants look the way you expect them to, everything is within their tolerance range. If they look washed out, you probably need to use it. I have used it on pretty much every kind of garden and specialty plant you can think of. Kim Here is a link that might be useful: Ironite...See MoreReasons for testing pH of bagged soils: lousy performance
Comments (18)Hi Lyn: I'm glad to hear from you (I miss you, honestly). I posted it in Robert's English rose forum, see the link below. The advantage of red cabbage juice test, which toxcrusadr (a chemist) in the soil forum thinks its a good idea, is: It's more accurate since you can put a large amount of soil, rather than 1 teaspoon like those test-kit sold for $12 at the stores. As the soil soaks in the red cabbage juice for more than 20 minutes, it allows time for elements in the soil to be released. For $1.50 cents (99 cents of distilled water and 50 cents of red cabbage), I can test 10 different samples from various places in my garden, or different bagged soil products, to see which one most alkaline. I used those small plastic applesauce cups to hold samples. When I first tested coffee grounds from my Hubby in red cabbage juice, it was pinkish like acidic potting soil. After 1 hour, the solution was clear at the top, not a single pink trace left. Coffee is a buffer, it neutralizes the soil, as Michaelg informed. I topdressed roses with coffee ground with no problems. Espresso ground from Starbucks is different: it stayed pink and gave my rhododrendrons pink stripes. One pot has MiracleGro Organic potting soil, neutral pH. At first Sonia Rykiel was dark green, but after 3 months of akaline tap water at pH of 8, she became very yellow. I tested her soil again in red cabbage juice, same color as my soil (pH 7.7), bluish green. The fish-tank litmus strips sold at Walmart for $5 is a fast way to test one's water. It's more accurate in the alkaline range, and NOT so in the acidic rain. I would NOT use it to test the pH of rain water, reported at 5.7, which explains why the roses in my alkaline soil are dark green in the spring. Here is a link that might be useful: Test soil pH for $1.50 using red cabbage...See More- 6 years agolast modified: 6 years ago
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