First post and into my first grow with Robert’s Fruit Pack and Gold Leaf. So…I made a lot of mistakes but haven’t killed anything yet. But after devouring as much of the great info as possible from the good folks here, I’ve finally realized I cannot live without a good PH tester (not the colored water) and a PPM meter so i know precisely what is going on with my girls. They arrive in a few days and I have a really stupid questio: How to best test PPM the soil. Do I just collect the runoff after watering and throw it in a cup and test like with PH?
Been using the full Botanicare line and feeding with every watering. I think my girls are ok but am nervous might be over-loving them with nutes.
Here’s Roberts Blue Berry germinated May 19…thank you all again and Happy Gardening!!!
I wouldn’t worry about it I would just keep doing what you’re doing because she is beautiful and obviously likes what you’re doing keep up the great work
My PH was low at first and have been reading they can do well with low PH in veg but won’t do as well in flower. Never measured the PH out yet but will do so in a few days with the new meters.
Does it make any sense to measure the PPM out like with PH? I’m thinking if you know what you feed them and measure on the input side, and it comes out almost the same, then my girls may be locked up a bit given they didn’t uptake the nutes.
Always afraid I’m on verge of doing something stupid and mess em up!
You all rock and you can’t beat good genectics:sunglasses:
Yes you can collect runoff and the ph and ppmto get a gauge of where your soil is at. You should also get the ph and ppm of the water going in.
Also I wouldn’t worry much about the nutes because she seems to be doing great in whatever your doing. If you start seeing nute burn developing then you can start to pull back on your ppm.
Now here is what I have on PPM
I hope it’s what your looking for and by the way that’s a very nice plant you have there. Keep up the good work.
Fertilizers PPM
To discover the ppm of your fertilizer mix, you will require being able to gauge grams and liters. Come across at the nutrient 3 numbers written on the side of a fertilizer package, these are the percentage substances of the nutrients in the fertilizer. Each one gram of that fertilizer in to one liter of water, this will give 10 ppm per percentage point of the given nutrient.
Example a 20-20-20 nutrient gives (10 ppm x 20) or 200 ppm of every nutrient for each gram in a one liter of water.
FORMULA:
Grams of fertilizer per liter = A/B
A = your desired ppm
B = 10 ppm x the % of nutrient in mix or your ppm = C x B
B = 10 ppm x the % of nutrient in mix
C = gram of fertilizer per litter.
So to make create a 200 ppm to 100 ppm to 200 ppm NPK mix utilizing a 13-0-44 ratio of potassium nitrate, a 12-62-0 ratio of monoamonium phosphate, and a 33-0-0 ratio of ammonium nitrate you would work in reverse from your single P and K basis (it makes it the simplest in this case), and create up the N at the finish. I have rounded values to the nearest 0.1 g for the following. You would utilize 0.5 g of potassium nitrate about 200 ppm/910ppm x 44k and 0.2 g of mono-ammonium phosphate at about 100ppm/(10ppm x 62P) in one liter.
Fertilizers PPM
This would provide you 89 ppm N (10ppm x 13N x 0.5g + 10 ppm x 12 N X0.3g), 124 ppm P (10ppm x 62 P x 0.2), and 220 ppm k (10ppm x 44k 0.5g). 111 ppm is necessary to elevate the N to 200 ppm level, so we can utilize 0.3g of the ammonium nitrate (111 ppm/ (10 ppm x33N) to take us up to complete. The concrete mixture would give away a 188 ppm N, 124 ppm P, 220 ppm K mixture in one liter of water.
To obtain more accuracy, you require combining big batch or getting an improved range. You would require to make 10 liter set of the over with a range that is only precise to the gram. If you blend your own fertilizer, you can regulate your N basis to meet up your ph requirements, rather than relying on adding acid or base, which is good. This works for formulating hydro mixes, as well as for us soil farmers.
Might have to make a fine spreadsheet with formulas. Got it copied brother! Or maybe I will just keep doin what I’m doin until I’m smart enough to get this.
@DaGoose your in great hands with @Hogmaster and @garrigan62 and to answer the question yestvyou can check ppm with the run off just like you said
I agree with @Hogmaster as well she seems to like what you’ve been doing and looks great
Keep up the great work bro CB oh and welcome to the forum
Got my ph meter today…gotta love amazon. Put 6.8 ph in, and got 6.2 ph out. Just RO water with no nutes. I think the girls will be much happier soon! Then will try to sort out PPM.
Going on vacation this Friday for 2 weeks. My friend is house sitting but has some experience. Nervous as hell about the girls. Jeezum…dont have kids but this has to be kinda the same.
Never would have a clue what any of this means without all your great advice!
@DaGoose Dude you are set just keep doing what you’re doing and you’re going to have a monster more than it already is you’re going to have to make some A-frames to hold those buds up
Actually I have skunk #1 that is way bigger. They are calling for a bit of rain tonight here in So Cal so I furiously did a redneck fix so they don’t break any stems after getting home from work before playing with the new toy. Will post a pic tomorrow. Gotta sleep now so I can get up at 4:30 to make some more water and feed the gals before heading to work
CB oh and welcome to the forum
drinking beer 