The-Grow-Op
Member
When/if my seeds sprout, is it ok to add fertilizer to them? NPK = 5-3-3? Or should i use another fertilizer which has NPK of 3-5-4? (im using the 'plant magic' fert on this grow)
sprouting
- Thread starter The-Grow-Op
- Start date
The-Grow-Op
Member
So should i wait until they start vegging? Ps thanks for the help
The-Grow-Op
Member
Thanks for the help
What medium do you grow in? If it has no NPK, no nutrients like Pro-Mix or coco, you can start feeding 1/8 strength 5-7 days after it breaks ground.
If your medium is something like MiracleGro or FF Ocean Forest, it's more complicated figuring out when and how much to feed.
The-Grow-Op
Member
Im using plagron batmix, so what do you recommend?
The-Grow-Op
Member
It has no nutrients added apparently. And i think its mainly made up of peat? Which should be good for the ph levels right?
Not really. Peat has a tendency to turn acidic. Brands such as Pro-Mix add dolomite lime to help hold the ph higher. Some don't, like inexpensive peat sold at Lowes. What is the brand of your medium? The label should say. But, if it's an unknown or cheapo brand, even if it says dolomite doesn't mean they added enough. They can add a pinch just to list it as an ingredient.
You're going to want to familiarize yourself with measuring runoff ph and how to interpret it. Maybe invest in an $50 Control Wizard Accurate 8 soil ph probe. Useful to interpret runoff, watch ph drift as soil dries. It's helpful to watch these things because, if you water at the customary 5.8-6.2, and you see the runoff/soil turn 5.4, you can start watering with higher ph to pull the soil higher -- before you're facing a lockout condition. For me, it's been a game changer (as I fight acidity with pro-mix and some unbuffered dry nutrients).
(Quote my message so I will be alerted if you reply. Or, feel free to message me if you have an acidity problem and need advice.).
The-Grow-Op
Member
I will check the package of my soil now, 1 second, thanks for the help btw
The-Grow-Op
Member
Heres the soil label, what do you think? Says not to add ferts for while
Attachments
Yes, that has nutrients mixed in. You'll have to figure out how they satisfy your plant, and how much you need to supplement, when. You should google for posts by growers who use Flagron BatMix. You should be able to glean some rough ideas.
The-Grow-Op
Member
Yeah i will do, will this medium do any harm during the germination stage or will it be alright?
You might notice some burning in seedling, early veg. If you've already planted the seed, there's nothing you can do except watch and learn. If you find others who use this medium you'll get a more accurate picture of what to expect. (All I know is that some of these soils with nutrients can be hot.).
The-Grow-Op
Member
So theres a high chance of them burning up?
I don't know. Mediums with slow-release nutes are known to be hot. Google for Plagron BatMix and see what people using it say.
The top of the search results is this:
There are probably posts on this forum too. If you use Google you'll find a lot. I prefer soilless so I'm in full control of how much food the plants receive. But, a lot of people use these amended soils. They just bring a different set of challenges.