Checking PH of soil

[Jburner8011]

Good morning guys. My question today is, what is the best way to check the PH of the soil the plant is growing in? I have some yellowing leaves on my photoperiods. This is my first photo- grow. I’m used to autos which don’t take a lot of nutrients. These ladies are different. They seem to be a lot hungrier. However , I just want to make sure something isn’t locked out before I start bombing them with nutrients. My water comes out of the tap at about 6.5- 6.8 or so. The plants have a just started flowering this week. Some of them may not have enough time to finish before the weather turns we will see… next year I’m definitely going to start them earlier!

 

[Del boy]

Good morning guys. My question today is, what is the best way to check the PH of the soil the plant is growing in? I have some yellowing leaves on my photoperiods. This is my first photo- grow. I’m used to autos which don’t take a lot of nutrients. These ladies are different. They seem to be a lot hungrier. However , I just want to make sure something isn’t locked out before I start bombing them with nutrients. My water comes out of the tap at about 6.5- 6.8 or so. The plants have a just started flowering this week. Some of them may not have enough time to finish before the weather turns we will see… next year I’m definitely going to start them earlier!

Hello here you go
How to Prepare a Soil Slurry for pH Measurement

1. To make the slurry, you will need a scale, the soil sample, a clean container, a spoon, a measuring cup and 100mLs of distilled water. For measuring, you will need a soil pH tester. For this example, we will use 100mLs of water to 50 grams of soil. Amend these volumes to suit your needs so long as the ratio is two parts water to one part soil.
2. Take the clean container, place it on the scale and press tare.
3. Weigh out 50 grams of soil.
4. Add the 100mLs of distilled water to the 50 grams of soil and mix thoroughly.
5. Wait at least 15 minutes for the soil to settle. Leaving for this time will give more accurate results. It’s normal to see some separation between the soil and water.

How to Measure a Soil Slurry using a Soil pH Tester

1. Once 15 minutes has elapsed, you can use your soil pH tester to measure the slurry.
2. The last step is to turn on your selected soil pH tester and place the electrode into the centre of the sample and wait for a stable reading.
3. Remember to rinse your electrode thoroughly after use. Repeat the soil slurry mix and measurement on several areas of your soil for more accurate results.

 

[automan2]

Easy. Just ph what's going in.

 

[blue]

The slurry test is good for soil.

Here's another method that may be useful.
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PH Calculation Guide by GoAuto6

Rough Calculation Guide:

Here's some good info on ph.....
If your runoff pH is higher than your starting pH, use this equation to determine your soil pH:*
Soil pH = Runoff pH + Difference

If your runoff pH is lower than your starting pH, us this equation:
Soil pH = Runoff pH - Difference.

For example, say your the starting pH of your solution before it goes in is 6.5 and the pH of your runoff is 7.0. The difference is +0.5, so using the above equation:
Soil pH = 7.0 + 0.5*
Soil pH = 7.5

If your starting pH is 6.5 and your runoff is 6.0, your difference is -0.5 and using the above equation:
Soil pH = 6.0 - 0.5
Soil pH = 5.5​

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You can also get soil ph meters - i think some of the decent growers i know that use them prefer Accurate8 soil probes

 

[nizmoKush]

Probably the best way would be to get a good soil ph meter

 

[Hot Joe]

Good morning guys. My question today is, what is the best way to check the PH of the soil the plant is growing in? I have some yellowing leaves on my photoperiods. This is my first photo- grow. I’m used to autos which don’t take a lot of nutrients. These ladies are different. They seem to be a lot hungrier. However , I just want to make sure something isn’t locked out before I start bombing them with nutrients. My water comes out of the tap at about 6.5- 6.8 or so. The plants have a just started flowering this week. Some of them may not have enough time to finish before the weather turns we will see… next year I’m definitely going to start them earlier!

Are you declorinating your water or running it through a carbon filter?

I had an issue with my ph being way too low.
What brand of soil are you using? I know when my girls are young, they looked like nitro def but were actually being burned a bit because the soil is too hot. I use Fox Farms.

 

[olbobcat]

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Good morning guys. My question today is, what is the best way to check the PH of the soil the plant is growing in? I have some yellowing leaves on my photoperiods. This is my first photo- grow. I’m used to autos which don’t take a lot of nutrients. These ladies are different. They seem to be a lot hungrier. However , I just want to make sure something isn’t locked out before I start bombing them with nutrients. My water comes out of the tap at about 6.5- 6.8 or so. The plants have a just started flowering this week. Some of them may not have enough time to finish before the weather turns we will see… next year I’m definitely going to start them earlier!

Photos go into flower on length of day so starting them earlier will only icrease there size not make them finish earlier