4000+ppm no burnt tips, why?

65% rh all day every day. Plant is doing a fraction of the work it's eating. The process of your cycle is bottlenecked. Plants absorb nutrients from the soil or water through their roots, You're not stressing the plant, the problem isn't that EC is high alone, if that were the case you would have burnt tips, the high rate of uptake is responsible for burnt tips. Anything placed at its furthest point in a leaf is done so by control of the plant as a countermeasure to protect itself, the EC runs high, salt slips through the filter, and the plant places salt particles where it can do the least damage within the epidermis, the tip. Over-efficient uptake in a high EC medium is not the problem, it's a low uptake rate in a high EC medium. Your plant is cycling water very slowly, greatly limiting the amount of work being done in a cycle, it doesn't matter what you feed the plant, doesn't matter what size a mineral is broken down to make it more easily digestible, doesn't matter, what matters is how much of the manufacturing process was completed in a daily cycle. I am not saying this as a criticism, but I know what a 6week plant should look like given the recommended manufacturer guidelines of PPFD yada yada, your plant is very small and compact from what I'd expect of a plant that has cycled for 50 or so days, doesn't mean it's not getting enough light just it's not using all of its capacity it's collecting during daylight, somewhere in the daily day/night cycle manufacturing process line there is a bottleneck, one that doesn't seem to stress the plant but raises run off to 4000ppm If a plant is unable to release moisture efficiently through its stomata then it cannot suck up more nutrients, which just build in your medium till you wonder why "the runoff was 5.8pH and 4000+ ppm", where else are the salt minerals you're adding to the soil supposed to go. Like a construction site, doesn't matter how good materials you have, or the workers, it's all limited by how well get everything where it needs to be up the scaffolds in a timely manner. Doesnt matter what the blueprints are, how good the materials are, how good the workers are during the day, water is the solvent used by nature to transport, those lazy fkers on night shift just lay around sleep all night, and play in the swimming pool all night. The guard cells (stomata) previously mentioned are specialized to regulate gas exchange, working to optimize the movement of oxygen, water, and CO2 in and out of the shoots. Humidity levels influence the rate of water evaporation from the leaves of cannabis plants, which directly affects the tension and suction created within the plant. Higher humidity levels can reduce the rate of evaporation, potentially impacting the negative pressure and water transport efficiency within the plant. The cohesion-tension theory explains how negative pressure enables water movement from the roots to the leaves of a cannabis plant. As water evaporates from the leaf surfaces through stomata, tension is created, generating a suction force that pulls water upwards through the xylem vessels. This process relies on the cohesive forces between water molecules, forming a continuous column for efficient water transport. In cannabis plants, xylem vessels serve as the conduits for water transport. These specialized cells form interconnected channels that allow water to move upwards from the roots to the leaves. The negative pressure generated through the cohesion-tension mechanism helps drive the water flow within the xylem vessels. Negative pressure facilitates the movement of water from the soil, through the roots, and up to the leaves of cannabis plants. It helps maintain proper hydration and turgor pressure, ensuring the cells remain firm and upright. This is crucial for healthy growth and structural support. Negative pressure transports water and aids in the uptake and transport of dissolved nutrients within the cannabis plant. As water is pulled up through the xylem vessels, essential nutrients and minerals are transported along with it, supplying the various tissues and organs where they are needed for optimal growth and development. The term ‘relative humidity’ (RH) refers to the amount of water vapor in the air and is usually expressed as a percentage (e.g. 50% RH). This can have a major impact on how cannabis plants grow. Low humidity means less water in the air and results in increased evaporation and water use. Excessive humidity comes with its own problems, including creating an ideal environment for pests, mildew, and mold to grow. One key factor related to humidity that is often left out of the conversation is vapor-pressure deficit (VPD) – the difference between the maximum water vapor the air can hold at a given temperature and RH. Although not all growers measure VPD, it significantly influences stomata activity and is directly related to transpiration rate and metabolism. A VPD that is too high means drier air and increased evaporation and transpiration. Too low a VPD can lead to slowed transpiration and reduced growth. Since slowed transpiration reduces nutrient uptake, both too high and too low of a VPD may appear as nutrient deficiencies. It is VPD that drives transpiration and nutrient uptake in plants; the uptake of water at the roots is determined by the loss of water through the shoots, and the loss of water through the shoots is determined by how much water is in the air. Humidity levels influence the rate of water evaporation from the leaves of cannabis plants, which directly affects the tension and suction created within the plant. Higher humidity levels can reduce the rate of evaporation, potentially impacting the negative pressure and water transport efficiency within the plant. 0.04% =400ppm standard indoor co2. Daytime: the plant needs to find that 400ppm of CO2 capture them and gobble them all up, if not replenished they are gone. Nighttime: the plant needs oxygen to process the energy and nutrients into bigger Lego blocks that make all the 20 amino the plants need to build everything else. To do that the plant needs a replenishable source of oxygen, as a by-product she spits out water vapor all night along with co2 to be used in the morning. if air RH is already at 75%RH of the total air capacity that the air can handle at any given time, the plant cannot perspire/evaporate efficiently in such a moist environment IT NEEDS TO RESPIRE RAPIDLY, we need evaporation and extraction. We spend so much time fussing over the day, that we forget the night needs optimization too.

Soil? Or, soil fertilizers? These often require intermediary steps involvingn bacteria to break them down before it can even enter the plant, so you have PPM from the ingredients, any intermediary products, and the molecules that go into the roots--- so it'll be higher than what the plant has access too and the stuff that can't get in is irrelevant, for the most part... could probably still impede some things, but under healthy conditions (not over/under feeding) not a problem. bottom line, in soil a high EC/PPM might not be any problem whatsoever.. it may even be necessary to provide proper amounts of nutrition... inventory for bacteria + inventory for roots, etc.... Those "fluishing" agents are a giant waste of money. Before you freak out about the ppms, is the plant healthy? is it trending in the wrong direction? If not, it may be normal. If you don't have a baseline of this sort of data then do not assume because you just measured it that somethign is wrong without a well-informed comparison to a value you know is a problem. allow the plant to dictate what is bad or good.. not somem preconceived notion. if ther is an issue, recognize that you need to feed at lower concentrations... if you need to flush intermittently, you are needlessly pissing fertilizer down the drain. A good fertilization method should avoid the need to flush the substrate. That's actualyl quite stressful on the plants.. drastic shifts in the rootzone are something to avoid.

It's great that you're monitoring your runoff values! While a pH of 5.8 is generally within an acceptable range for cannabis (around 5.5-6.5 is ideal), a runoff EC of 4000+ ppm is very high. This indicates a high concentration of salts and nutrients in the root zone. Why aren't you seeing burn tips or stress yet? Plant Tolerance: Some cannabis strains are more tolerant of high salt levels than others.   Stage of Growth: Younger plants might be able to withstand higher salt levels compared to mature plants. Nutrient Lockout: While high salt levels can cause nutrient lockout, it might not always manifest immediately in visible symptoms like burnt tips. Nutrient lockout can occur gradually, affecting plant growth and yield over time. What to do: Flushing: As you mentioned, flushing is crucial. Using FloraKleen can help remove excess salts and improve nutrient uptake. Follow the product instructions carefully.   Monitor Runoff: Continue to monitor your runoff values closely. Aim for a runoff EC of around 1.0-2.0 for coco coir. Adjust Feeding: Reduce the strength of your nutrient solution or increase the amount of water between feedings to lower the salt buildup. Observe for Symptoms: Keep a close eye on your plants for any signs of stress, such as: Burnt tips: Brown or crispy leaf tips Chlorosis: Yellowing of leaves Stunted growth: Slow or inhibited growth Nutrient deficiencies: Visible deficiencies of specific nutrients (e.g., magnesium, calcium) Remember: High salt levels can negatively impact plant health and yield. Regular flushing and monitoring are essential for maintaining a healthy growing environment for your cannabis plants.

It seems you're running a soil grow in the same way a grower would in coco. Soil is gonna hold onto stuff longer than coco. You could probably get by just adding ferts occasionally and just watering in between. Soil growers typically don't want a ton of runoff and only flush when problems arise, not periodically as maintenance. I haven't done a soil grow in awhile, probably one of my first diaries on here for a big outdoor run. I only fertilized those plants a couple times to whole summer and they where 6-7' plants in about 35-50 gallon containers.

In soil ??? ;)))) give one or two weeks max and you will return with question what is wrong with my plant ... 1700 ppm to huge trees , with every second watering with feed - is max i extracted safely and its with 200-250 g plants ...

Because you are an idiot. You think a gram per watt is good by your name. You also don't even know how to test runoff. I will help you out some because you asked a question. When you test runoff you test the last 10% of the runoff. Put that FloraKleen in there ROFL.

You must have have ramped it up and its taking it. I use to do an almost too high a dose in the first couple of feedings. So high sometimes the plants would almost go ghost white. If they survived they boomed and would be very hungry all the time and end up being stupid big

you may not see any vivble stress on foliage but also may be locking out nutes and causing stunted/stalled growth. If shes still growing vigorusly then i wouldnt sweat the high ppm. just use it as a gauge to decide if you should plain water or feed. sounds like you could use a couple weeks of plain water. add bacteria to the water like King Crab or Orca to help break down built up salts