yes I'm doing the recommendation on the bottle of the directions the yellowing is starting from the bottom and working its way up and leaves are turning dead these are from three different plants after reviewing my pictures let me know what you think
I'm guessing you're talking about carbon monoxide levels I don't have a PPM machine yet
Hi. When you mentioned "recommendations on the bottle" I used to use "full strength" until I got a meter. I was over-fertilizing by a lot.
What about the cheap meters for soil
You'll have to ask the group for other recommendations. Do you have a pic or a specific make/model number in mind?
I just bought a meter for like $12 I don't know I don't think it's very accurate I also heard that you can take a sample of your soil mixed with water and then check the pH levels with that I have a water pH meter but not a soil pH meter well I do now but like I said I don't think it's very accurate it's reading that all my pot soils is 7.5
I'm not talking about PH. But PH is probably most important.
hightimes.com
No my soil pH meter the one I just bought is inaccurate the water meters fine it's perfect it's just cheaper soil light and dark 3 in 1 tester but I think it's an accurate when it comes to detecting levels for soilI'm not talking about PH. But PH is probably most important.
Why do you think your water PH test is inaccurate?
I think 7.5 is kinda high for PH and your plants are in a tail spin because of over fertilization. If you live in the U.S. you can send soil samples to your state department of agriculture for testing. But results from the state could take weeks to get back to you.
"An overabundance of nutrients can result in nutrient burn or toxicity and can also lock out other ingredients. Unless the damage is slight, individual leaves do not recover from nutrient deficiencies. Some nutrients are mobile and are translocated from older to new growth, so the damage is seen in older leaves, not in new growth. Other nutrients are not mobile. Their deficiencies are apparent in new growth."
Invest in a Good Set of pH and EC/TDS Meters
"Invest in two relatively inexpensive meters: a pH meter and a TDS meter. The pH meter tells whether the soil chemistry is right for good uptake, and the TDS meter quickly tells growers whether there are too little, just enough or too many nutrients in the root zone. Total dissolved solids (TDS) are measured in parts per million (ppm)."
Ed Rosenthal’s Guide To Understanding Nutrients
Feeding pot plants properly is essential for growing clean and flavorful cannabis. In this excerpt from Marijuana Garden Saver, the "Ganja Guru" showcases deficiencies and how to treat them.
TDS meter okay I'll have to Google that