I'm growing 9 garlics in one container. Previously 10 but the other one died. Currently, some of their leaves are turning yellow and they are still one month old. I used a soil-less medium and I apply organic liquid fertilizer every 2 weeks. I also water them when I think (I'm not really sure) the soil is dry.
What could be the cause of the yellowing leaves? I'm not sure if it's because they lack nutrients or I'm overwatering them.
I'm from the Philippines by the way.