More plant in single pot fertilizer

Hello everyone i am new guy in this forum.I have making outdoor growing on my balcony i have got 5 pot with 6 plant everyone think it is little area for growing but i say before they are good growing without problems but my problem about watering and fertilizer.Do i need to increase watering for that plants is it useful also i need to fertilize them and do i need to increase fertilizer amount or do i need to apply fertilizer short time.My botanical supplier offer me NPK 20-20-20 and NPK 33-6-7 lawn fertilizer what will be amount and apply times i will use 10 liter water drum for adjust dosage i have waiting for experienced growers.

NOTE:My plant take near 13 hour lights and take near 4 hour direct sunlights.That is 4 week plant and more healthy.

Normally you don't want more than one plant in each pot. They will compete for soul resources. Not to say it can't be done, and I've seen plenty of people using large planter boxes and putting a number of plants in them.

You don't want to increase the concentration of your ferts, but you will need to water two plants with twice as much water as one, and at the same concentrations, twice as much water will be twice as much fertilizer. Obviously two plants will need a larger pot than one. I would use the 33-6-7, and look on the container for directions. Start out at half or quarter strength if they haven't been getting nutes, then ramp it up to full dosage over a little time. When you switch to flower you will want nutes with little or no nitrogen and higher pk.

thanks for your valuable comments now i will adjust my fertilizer with 33 for adding height to them.

dude dont use the lawn nutes! they sound like the wrong kind! i would go with the 20-20-20 and transplant into separate pots..

At a pinch you could use the 20-20-20 all through. Not ideal, but it is better than no ferts.