Should I Start Hitting These Plants With Nutes?

They look hungry for N

 

what are all them white spots is that white powder mold??

 

Yep that's called N draw down it happens when the compost is a little under cooked I just had the same problem so I upped my urine to 1.8 lts to 10 lts water brought them back from the dead nicely here's a pic of before n after it took 2 to 3 weeks to come good .

 

I'm not an expert but I believe that would mean more nutrients correct me if I'm wrong. Those leafs on your girls that look curled in and are dropping are random and that happened to me on my super lemon haze (wind burn) to much air blowing on your ladies at least That was my case. I only prune the top 2 fan leafs on each budsite and that is when the plant is 100% healthy (after flower stretch) otherwise your risking yields

 

I use human urine as my main N element

 

First timer and it has taken a little too long for me to discover the ailment of my grow. They need nitrogen and I worked too hard to get them to their present state to waste any more time seeing the curling tips and yellowing. I am hoping I can get an answer from folks who regularly use a mix of human urine and water to fertilize their grow. I know this is the route I am going to follow so all I need to know is the ratio of water to urine. Thank you in advance...signed; worried first time grow mama of 4 small beautiful but sick plants.