ratio of plant weight

[RacecarRandy]

I have a question about the weight of a total plant.
I will be growing a modified nft/flood and drain system under 3k of lights using rockwool. I am in Ohio and I am trying to keep everything under 5000 grams. here they weigh stems, roots and everything.


if i average around 4lbs per harvest from these 3 lights, is there a formula to ballpark how much total plant matter I will produce?

 

[jyip]

thats a tough one to ballpark,,,, wet verse dry weight will be a big factor here as a dried plant is roughly 20-25% percent of the wet weight.i would definatelyu look into fiding out how to go about guessing a weight

good luck w/ it

if you didnt hafta include stems, roots n soil i hava decent formula you can use to guesstimate dry bud harvest weight.... you count up all the branch tips that will yeild a bud/cola and depending ona heavy or light yeilding plant you figure 3-7 grams per branch tip....this gives a fair idea of yieldor you can take the total weight of wet plant and figure 20-25 % is rough harvest weight of bud

 

[RacecarRandy]

im just worried about dry weight, wet weight should not be important.
has anyone ever weighed the whole plant before, or possibly just all of the stem and bud as a comparison? I know there has to be a formula or someone who has done this before.