Welcome to ATP. It's very unlikely that a plant would die within 48 hours from lack of soil nutrients so probably there is something else going on. Can you tell us what plants you are trying to grow and how you went about putting the plants in the mix, and how you are watering?
It's hard to tell from the picture what is going on with the roots. Are they the roots of the garlic? When you move a plant it may lose some of its roots regardless because they are damaged in the process of transplanting.
