Ph and Ppm

hepkafaadam

Member
Soil pH, PPM


Cannabis plants carry nutrients from their stems, like all leafy crops. Roots are porous structures that draw nutrients and water from the soil. Water and nutrients are then used by the plant to produce food by photosynthesis. These dishes affect all the structural elements of the cannabis plant, from leaves to flowers and cannabinoids. Like humans, plants can be fed a lot every day. If they are overfed, the plant may suffer too much damage from a particular element, the roots become locked, and the plant stands surrounded by food.



PPM comes into play here. Cannabis plants have different nutritional needs throughout the life of a plant. There is an optimal PPM level for each stage of development. Using a TDS or EC meter to measure PPM is a sure-fire way to ensure your plants are getting exactly the right amount of nutrients.

For example, suppose the plant is in a late developmental stage. It should have a PPM of around 800. It should have a pH between 6.0 and 6.5. For example, if you get around 1500 PPM and 5.3 pH in late development, you are on the verge of plant poisoning, nutrient locks will occur in your plant, the water flowing from the bottom of the pot in PPM 2 irrigation should be controlled and flush should be applied to high work.






Here is a list of recommended PPM levels for the different stages of a cannabis plant.

Seedling Stage: 100-400
Nutrients are not really required at the seedling stage. A little Root Juice always helps.

Early Development Stage: 500-800
This includes clones. Nitrogen is the key nutrient at this stage.

Late Development Stage: 800-1200
Plants require NPK. It is a good way to get the balanced NPK you want at the end of the vegetative phase.

Early Flowering Stage: 1000-1400
The cannabis plant will be stretched at this point. While the need for phosphorus starts to increase, the need for nitrogen starts to decrease.

Medium Flowering Stage: 1200-1600
This is the stage where a cannabis plant needs the most food. Maintaining moderate Nitrogen levels while increasing Phosphorus and Potassium to inflate buds.

Late Flowering: 1000-500-0
Late flowering begins with a decrease in PPM. During the week of maturation, PPM can be about 500. Finally, PPM is reduced to zero. Plants are fed only water to clean them from chemicals. This improves the taste and reduces the hardness.
 

Mcwhippin420

Well-Known Member
Awesome thanks im getting towards mid flower and been feeding in 1k 1200 maxed one time but just got a pk boost with my base so thanks for the chart on reference amounts so I don't under over do it by guessing hah
 

hepkafaadam

Member
There are at least three different ppm weightings, which one are you basing your recommendations on? It would have been better to use EC. I never feed my plants as high as you're suggesting. They would get nute burn if I did.

First of all, hi 4 grow stop I did not have a problem with a chart I used, half of this chart should be applied in auto genetic plants, photo ideal for plants

People who know that they will apply half of the fertilizer usage schedule given by the companies in auto plants do not get caught up in this situation.

collected from well-known sites, not a source I invented in my mind
 

PJ Diaz

Well-Known Member
First of all, hi 4 grow stop I did not have a problem with a chart I used, half of this chart should be applied in auto genetic plants, photo ideal for plants

People who know that they will apply half of the fertilizer usage schedule given by the companies in auto plants do not get caught up in this situation.

collected from well-known sites, not a source I invented in my mind
So you're not gonna answer the question, as to which PPM scale you are basing this off of?
 

Rurumo

Well-Known Member
I hate generalizations about ppm for the stages of a plant's life. I've got plants in late veg right now that get nute burn if I go over 500 ppm (500 scale). Plus it really depends if you're in hydro, coco, or soil. Coco does great with much lower ppms than OP recommends but fed multiple times per day.
 

Doug Dawson

Well-Known Member
I hate generalizations about ppm for the stages of a plant's life. I've got plants in late veg right now that get nute burn if I go over 500 ppm (500 scale). Plus it really depends if you're in hydro, coco, or soil. Coco does great with much lower ppms than OP recommends but fed multiple times per day.
Agreed. And let's not forget a plant under powerful LED's seems to need much more food than the same plants under MH/HPS. On top of that there are strain specific restrictions so one strain will not necessarily like the same amounts as another.
 

getogrow

Well-Known Member
Ask him the scale........Simple
How do you suppose a guy can change the ph to suit each stage of the chart ? What about organic food ? This does not help explain ph or ppm in soil. I suppose this 80's chart can be relevant if we knew the scale and we all used the same medium and synthetic foods.
 

bernie344

Well-Known Member
How do you suppose a guy can change the ph to suit each stage of the chart ? What about organic food ? This does not help explain ph or ppm in soil. I suppose this 80's chart can be relevant if we knew the scale and we all used the same medium and synthetic foods.
So your saying, he cant please everyone all the time?
 
There are alot of ways in each specific method of growing to reach desired results. I'm so glad were all not sheep.
I love going into others beautiful gardens and seeing their creative ways of cultivating this beautiful plant and breaking bread together...
- I'll never be an expert as I'm always learning new ways to get there.....-
 
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