Yeilds

[Deezy]

Hi guys,
just finished with my lemon autos and as it was my first auto grow i learnt alot... Things went relatively well I thought, I tried a 24 hour light schedule which i wouldnt do again and got a little light burn from the LED's but i got something to smoke.

Harvest went well and i took just under 3oz off of each of the 4 plants however, after drying and curing im left with just over 2oz dry in total.. 11oz to 2oz from drying??

I hear people talking about 3oz per plant is average but is that dry or wet?

Im running a 300w platinum which is equivalent of a 400w HPS in a 1x1m box so should be plenty right? GH trio with schedule as recommended.

What would you expect dry from 4 plants in the same conditions?

Thanks,
Danny

[Minoo96]

Hi,
3 oz (90 grams) per plant, i ticked. Wet... okay, that makes more sense. 3oz dry per plant for a beginner, wow, that'd be a super awesome grow
I've read that it'll loose around 75% of weight when dried, but I noticed it actually lost more on mine. So it's "normal" i'd say. 25% of 11oz is around 2/3 oz... Seems okay to me.
I grow outside, I don't bother with calculation of how much grams per watts, but someone else will come along to help on that. That'll tell you if its a good yield or not

[berrypilot]

🌱 Typically your buds are made up of 75-80% water (depending on how recently they were watered) so when they dry they usually end up losing 75-80% of the original wet weight. So if you started at 11 ounces wet you'd expect about 2 or 3 oz dried. I never weigh buds wet, I feel like it's so disappointing! Usually when people are talking about weight, unless they specifically are talking about wet weight they are referring to dry weight.

For LED grow lights, you can't really listen to what sellers say about equivalents. It's all a bunch of marketing mumbo jumbo to try to confuse people. You are talking about an Advanced Platinum LED? A P300 Advanced Platinum LED uses about 183W of electricity out of the wall if all the switches are turned on. With LEDs you can expect to yield about 0.5g/watt of electricity out of the wall (on an average-to-good grow), so in this case that would be ~91.5 g (0.5 x 183) or about 3.2 oz. So at a 2 oz yield it is under what you'd expect, but not terribly bad.

When it comes to figuring out why your yields were lower than expected, as long as your plants were healthy the whole time, this page goes through all the things that can limit your yields, so you figure out why you didn't get what you expected. The light can support somewhat bigger yields and you have a big grow space, so some other things to consider that may have limited your yields are the size of your containers, the strain, and whether you did any plant training (plants produce the most if they're trained to grow wide and flat). If plants were unhealthy during the grow, that is likely why the yields weren't as high as they could be, since unhealthy plants don't produce as much as healthy ones.

I hope that helps!🌱

[Deezy]

Thanks Berry,
I'll have another read through the site...
everything seemed ok to be honest, a few problems early on with wind burn and i think LED burn which i fixed.
16 litre fabric pots, done the LST which worked well and the seeds should have been top notch... must of been something early on.

Thanks for your g per watt, that is indeed my light which I believe should do 1g per watt as its a decent one. I'll see how the next one goes, iron out the previous issues and see what we get!

Thanks again,
D

[berrypilot]

🌱 Make sure to post some pictures along the way and maybe we'll be able to spot something that might help! It sounds like you're doing a really great job by studying your old grow to make sure the next one goes even better! I bet you could easily double your yield or more next grow without changing your setup! 🌱

[ZigZag]

berrypilots's comment on LED's is close to my own experience. I've used 5 different lights from different manufacturers. One thing I know for sure is....how many watts a light draws doesn't really equate to how much a light can be expected to produce since there are so many other variables. I've found that even coverage without falloff (from the center to every side of the grow space),the intensity/wattage of the LED's, vertical fall off from top of canopy down through the plant, and color spectrum are more revealing of how a light will perform. The most revealing data measurements are PPF/PPFD and umol/s. Combined these will tell you the intensity and coverage of any specific light at a specific height (above the canopy) regardless of whether or not they are LED or any other type of lamp. The reliable manufacturers provide coverage and falloff diagrams for their lights. Of course a light that draws 1000 watts will produce more intense light at 24" than a 340 watt light at the same distance at the center of its "footprint", but PPF/PPFD and umol/s will vary due to its design.
Which one is best for you depends on the size and shape of your grow space, how much $ you have to spend, and whether you have a preference for any specific type of light. For me LED's are the best choice because I can't ventilate my grow space_can only use fans for circulating air and a personal preference for true white light (I have to work in the same room). After 4 grows with different light setups I finally found the one I used for my last grow and it works perfectly for my grow space and personal preferences. I had to experiment a few times before I found what I really needed. And it was worth the effort_ and I hope the cost_ in the longer run_fingers crossed!

[Deezy]

Out of interest what brand/size did you settle on? What sort of yeild did you take on your last grow?
D

[berrypilot]

🌱 Something to consider if you're willing to put down about $500 (cheaper if you look around, just be careful of sketchy sellers) are the new LEC grow lights. An LEC is like a hybrid between a MH and HPS grow light, that gives off UV rays to possibly increase THC. In the forum and online, all the LEC growers are consistently beating the LED growers for yields, and LECs/LEDs also work really good if you use them together, so you could use an LEC in addition to your old light. I think your space might actually be big enough to put both in there if you have at least 1.8m of height. The LECs only use 315 watts and one grower on here got over 10 ounces using just the one light from seed to harvest! 🌱