I am using the sensi line from AN and I was wondering if anybody else is using the same for soil...I am currently running 5ml of A&B along with 3-4ml of big bud per gallon the ppm meter reads 450 ppms. It seems that even this light mix is burning my plants very very slightly. So I guess my question would be is what nutrient mix are you guys running in soil? How many ML per gallon?
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I've not used AN in soil, however in general most nutrient companies recommend too high levels of nutrients for plants like cannabis. It's often a good rule of thumb to start at half of what a nutrient company recommends and only raise the nutrient levels if the plants start to get pale. I've personally found that PPM isn't necessarily a good indicator of nutrient strength especially in soil, as it depends a lot on your starting water and particular nutrient line.
Another thing to keep in mind is that your soil already has nutrients in it to start. Generally with soil you'll have enough nutrients to last for a few weeks before your plant uses it all up and you need to start adding nutrients.
Are you checking the pH? The pH being too high or low at the roots is the #1 cause of nutrient deficiencies if you're using nutrients. Is it possible to post a picture of the plant in the setup? Sometimes we'll have extra tips or hints if we can see the plants!
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