Need advice for N

Guyz 3 weeks into the veg and girls have 4 nodes but the vertical growth slowed. the first single bladed leaves at the bottom of the stem started going yellow (not very serious, just started). I studied a lot and it may be N deficiency. I will observe for one more week then post some photos if the problem gets worse. But i need your advice for the N nutes. I will order one X-0-0 nute just in case. what do you prefer as X-0-0 nutrient and which one on what stage (early veg, mid veg and late veg). Thanks in advance. (SATIVA)

What medium are you growing in? What nutrients do you currently use? Do you have pictures of the plants?

Usually when a plant is that young and the lowest nodes blades yellow prematurely its a watering issue, the plant is being watered to frequently! If you growing in soil, you shouldn't have to give that young of a plant any nutrients for at least a month.

Renfro said:

What medium are you growing in? What nutrients do you currently use? Do you have pictures of the plants?

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Biobizz lightmix. Rootjuice, bioheaven and biogrow according to the schedule by biobizz. Now they are on dark period but i will get some pics asap.

Probably just need to increase the PPM using the biogrow. That has nitrogen. What is the current feed PPM?

piratebug said:

Usually when a plant is that young and the lowest nodes blades yellow prematurely its a watering issue, the plant is being watered to frequently! If you growing in soil, you shouldn't have to give that young of a plant any nutrients for at least a month.

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Read the other reply of mine for the nute info. Imma lazy boy ^^ I only water it once a week cuz I overwatered my first try some months ago and lesson learnt.

Renfro said:

Probably just need to increase the PPM using the biogrow. That has nitrogen. What is the current feed PPM?

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U mean the ml of the nute per liter of water?

Chryniszzswics said:

U mean the ml of the nute per liter of water?

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PPM (Parts Per Million) or EC (Electrical Conductivity). It requires a meter. This is how we determine how strong the feed is. Otherwise it's just a guess. Some nutrient manufacturers provide mixing instructions that end up pretty strong, others not so much. If you wanna just wing it, increase the biogrow a little and see what happens. If you get it too strong then you will see the tips of your leaves "burn".

no matter what medium you grow in you need all 12 minimum nutrient N P K Ca Mg S Fe Mn Z Cu Mo B
if one is missing your plant dies .
rhe medium you use may or may not have been prefortified . if it has been it needs all 12 . if it has been with chemical nutrients then it is hard 4o tell if they are over or under supplied .
if organic sources then even worse .how available are they and un sure of spectrum
i do not use organic for that reason. excellent for outdoor amendments where other minerals can be accessed but not best when it is the only source.
it is best to at least supplement with a complete formula.
just for reference organic sources of N as nitrate NO3 is exactly the same as NO3 form calcium nitrate Ca(NO3)2. .it is just the medium that they come in .when a root absorbes N it is still from the water interaction at a soil particle . cations or pos + minerals are absorbed from soil particle interaction and anions are form liquid interaction.
after all that ?
use promix HP and use a complete simple 2 part formula containing all 12 minerals

a standard a ans b solution should be used together. at equal rates usually 2 to 4 ml a liter for a complete mineral spectrum .
it is better to over water with run off then to underwater as salt ( fertilizer ) will build up driving up ec in medium .