Deficiency???

nitrogen does not cause tip burn, FYI this is simple to check with a osilles context... add up ppm of N povided... is it 110-130 range? then, it is in a good range. some plants will want a little more or less.. ~120-130 is what i shoot for with pH ~6.0 120-130 N 50+ P 180+ K 100+ Ca 50+ Mg less than 100ish S this is general ratio of researched-based nutrient lines. you see the same basic weighted average of NPK values across several brands that follow this research. i can tell you with marijuana plants, 95% will be fine drawing off same reservoir. this is also a sign of a well-balanced formula. those that have come to the conclusion that marijuana plants are picky and wide vary are just using some whacky formulas that are esoteric. yes other formulas can work, but the consistency of them will likely be poorer. 1-1-2 or more refinde 7-7-15 is a good spot to start at an overall concentration of 1.3-1.5. your tap water will affect what concentration you want to use. other environmental factors like co2 and light will impact what concentration you want. the ratio will be mostly the same. good fertigation habits help eliminate potential issues too.. it's tugher to diagnose problems if our watering habits are part of the cause. irrigate with 10% runoff and fertilize every single irrigation. wait for that top layer of cooc to start changing color, then repeat. a good wet dry cycle early will have payoffs later one with deeper / more effective roots. later on, you can increase fertigation, to a point, and reap greater growth rates. don't over do it or you waterlog the roots. 10% runoff is key to soilles grows. it ensures concentration in soil is what you are providing. the runoff will wash out any higher concentration from evaporation occuring. 30% perlite in coco is best. no concern for drainage issues and incredibly difficult to overwater. doing these things makes diagnosing issues easier. you'll know what you see is directly tied to your formula and not caused by simple procedural stuff. if pH drifts, it's also likely tied to a shoddy product. proper soilles/hydro nutes need to be ph-buffered... you should not have pH issues except in rare instances.

it oculd mean several things, but more infor and such needed. get any commonleaf symptom chart. start looking it over to compare what you see. takenote of how they progress as this will help you delineate between common leaf issues.. e.g. if it starts at top bottom or all over, etc can eliminate possibilities. p tox can cause tips to burn. k tox and deficiency can cause tips to burn, though the deficiency quickly will work along the margins (outer serated tips). both of those tox symptoms are as much about what they lock out as what the p or k causes. S tox and deficiency cause burnt tips. So.. more info needed. from what i see your ratios will be off with your nute lineup. if oyu get one or 2 of the npk in a good range, the other 1 or 2 will be off.

It appears that your plant may be experiencing nitrogen toxicity, indicated by its dark green leaves. During the flowering stage, plants typically require less nitrogen. To address this issue, reduce the nitrogen levels in your next feeding. Additionally, water the plant with pH-balanced water to help correct the problem.🍻

Nutriet/nitrogen toxicity from over feeding. Your plants are very green, indicating too much fertilizer in general. It is not a deficiency. Some clear, close up pictures showing the actual problem would have helped with providing more specific opinions.

If it’s just yellowing dut not crispy and burnt it’s a Nitrogen deficiency If it look like it’s burning and getting crispy it’s too much nutrients and the EC of the soil is too high. In the first case, adding Nitrogen will fix the problem. In the second case, a little flush would be suggested.

When i have the leaf tips like that i will say to slow down on nutrients. If the bud are still soft slow down if you are close to harvest in 2 or 3 weeks dont need to worry a lot.

Es normal, si el problema no avanza no hay fe que preocuparse

If you are in early flowering it is a potassium deficiency.

In most cases excess of nitrogen. Yours look too dark a bit too. Hippy science tells that you on verge to toxicity if you get leaf fingers manicured ;))))