TRUE OR FALSE!?!?

Organic_LarFstarted grow question 6y ago

True or false?!?! LED has a longer flowering time. LED needs less nutrient. LED has a more spread light output. After reading to much about it, I would like to know what GD community thinks. 🙏🍀🍀🍀🙏

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Setup. Lighting

Setup. Other

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deFharoanswered grow question 6y ago

My opinion on this: For me, the term LED is too generic to answer precisely; the light spectra and their combinations in LED setups are much richer, more varied, and more precise than what HID offers, for example. Regarding penetration, intensity, or PAR of light, where HID systems are champions. I can only think that an installation with LED lights could extend the flowering stage... if the color spectra do not contain enough reds (600-660nm). Although I really think that the extension of the flowering stage, or in other words, the delay of senescence, is mainly conditioned by the type of nutrition that the crop has had and has, and I’m mainly talking about the presence of minerals (immobile nutrients), I’m not talking about NPK. LED needs fewer nutrients... I don’t see why. LED has a more spread light output: If you’re referring to the possibility of combining specific light spectra, allowing for very specialized and therefore efficient setups for the different stages of cultivation: the answer is YES. If you’re referring to the penetration power of LED lights, you can’t speak generically here either, as there are LEDs with a lot of penetration power... for example, comparing a 600w setup with HID bulbs to another with 600w of LED lights (well configured, regarding light spectra and placement in the cabinet), for me, LEDs offer much more performance and quality. Cheers!

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JeremyBeadleanswered grow question 6y ago

Hello Organic_LarF, This isn't really an answer to your question for growing cannabis but this paper measured the effects of growing mint under different lighting conditions. While the mentha spp. don't produce cannabinoids they do produce a lot of terpenes. They found that all of the three mint species grown under red or red-blue LED light accumulated dramatically higher essential oil content compared with those grown in the field. Again, not really an answer to your question but a super interesting, to me anyway, study on the effects of growing under LEDs. https://link.springer.com/article/10.1007/s13593-014-0209-6

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Harmaranswered grow question 6y ago

No, shorter bloom.

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Mr_Weeds_Autosanswered grow question 6y ago

Hey Growmie, 1. You may have heard that one big drawback of LED grow lights is flowering time. They simply take longer to flower. While that used to be true, it no longer is. ... They often don't have enough power to bloom, or they simply have an ineffective spectrum. So false 2. If you give nutrients to your plants, reduce feeding by 30% when growing with LED grow lights. During the vegetative stage, plants require more nitrogen and potassium. During the flowering stage, plants require less nitrogen and more phosphorus and potassium. So True 3. Most LED grow can replace HID lights so the spread isn't the issue, the light intensity is, as the light is raised it loses light intensity, unlike other lights. So True/False. Hopefully, I answered your question and remember ..."Happy Growing" and "Free your mind one puff at a time"

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chasv77answered grow question 6y ago

I believe items 1 and 2 are true. As for #3, it depends on what degree, the individual LED deflector lens' are set for. Different Mfg, do different things I have never used non-LED lights, as my ignorance to their spread.

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