how to add nitrogen

Bottom leaves do tend to die before the rest of the plant. One reason is they get short of light, shaded by the top of the plant.

But most of us do routinely add a liquid fertiliser. You can buy a general purpose fertiliser for the veg phase, which will contain N, P and K in roughly equal amounts, and trace elements - an important one is magnesium, vital for making chlorophyll.

When flowering a fert higher in K is usually preferred, try one made for fruiting tomatoes.

Whatever, read the list of contents.

Good luck

 

Fertilizing poor man style:

1) Unzip fly

2) Take aim

3) Soil that baby, near the stem but not on it

4) Water

Basically the same thing, even corrects pH down to ~6, specially after a meal.

 

Pissing in your plant does add nitrogen, but it also adds other substances you dont want in your soil such as amonia, acids, sodium, etc.

I'm not ruling it out, lots of people do it.

 

No, do NOT piss directly onto the soil around your plants. It is too strong. Urea is an excellent nitrogenous fert, widely used commercially, but urine contains salt, various acids and substances undesirable in this concentration. Dilute it 10 to 1.

 

Good luck.