Are ok nutrients needed in flower

forgot to add the 2nd part to this paragraph -- "N is a good example to use because teh symptoms are usually pretty obvious for both tox and deficiency. The "optimal" amount that you need will vary by gentics and any type of incomplete research like the above is just a good idea to start with." anyway, it's a good example because you can play with different levels of concentratioan and easily see in the weeks that unfold if it is too much or too little your local environment, from lights to RH%, will dictate what concentrationis best, but you mostly need similar ratios of nutrients. I do find if i feed at 130ppm N throughout vege, i do need to drop it 10-20% in flower to avoid an N-tox that can creep in the last week or 2.. if at all (it was never a certainty, but somethign i wanted to avoid 100%). Shows the genetic diversity that does exist as most had no problem with it. The other key here is that i had already had a steady formula, otherwise. If you move 2 dials, they often influenec other parts of the nutrient equation. Look up Mulder's Chart to see exactly how complicated it is. So, it's best to adjust one at atime to find an upper threshold that doesnt' cause problems. It may take another adjustment later when you tweak something else, but if only testingone thing at atime, it makes such side effects easier to mitigate. trial and error.. fertilization is about weeks and months of behaviours culminating in the present... it is rarely what we did just last night that causes what we see today. even your physical watering habits are important... timing, frequency... runoff or not?

it's not about this bottle or that.. the lants has certain needs to be met. you "can" give similar amounts in vege and bloom, but that doesn't mean it's best if you weren't giving enough or giving too much previously. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8635921/ This research paper also discusses the limitation of the results shown and why the levels of N may vary a bit by type of fertilizer used. you can see a limited set of genotypes that gave these results.. it's important to note the difference of some sources of nitrogen.. if it needs microbes to make it plant ready or if it is plant-available once dissolved.. makes a big different in the amount of N you want.. N is a good example to use because teh symptoms are usually pretty obvious for both tox and deficiency. The "optimal" amount that you need will vary by gentics and any type of incomplete research like the above is just a good idea to start with. Bruce Bugbee's youtube video about maximizing yield of cannibis is a good video to watch too... www.youtube.com/watch -- He has other very useful videos to peruse, too. Another useful article or 2: https://www.cannabisbusinesstimes.com/article/balancing-the-nutrient-equation-cannabis-cultivation/ -- always be skeptical of marijuana branded websites.. 90% peddle in unsubstantiated nonsense. https://www.scirp.org/journal/paperinformation?paperid=93052 dr. photon's corner on cocoforcannabis website is also a good resource.... not necessarily the comments but the original posts by 'dr. photon'

Are ok nutrients needed in flower = yes. if you mean "OK" as in good mixture and quality of generalized feed be it from multiple bottles or powders, If you meant PK, see below answer. Do you think pks are needed? = no not really unless you use them on top off grow nutrients and don't have other flower/bloom nutrition available. but other options are available. Or can u jus get similar results with feeding base nutrients? = same point above, you can use a basic veg or general allpurpose feed and it will still make flowers. maybe just not as much as a bloom based feed. As anyone done a side by side. = no, don't need to. I use a 4-4-4 and 2-8-4 and just mix them in different ratios to get the NPK I want. I also have some other additives I mix into it but I grow in soil with dry amendments vs hydro and liquid fertilization so its a bit different on how they are fed, I don't use a PK boost. Good Luck!

Not done a side by side but in accordance to a flowering ratio of 1-2-3 for a npk in flowering. A booster will save you money vs dumping a ton of bloom from base feed