Yes, this is a shmittah year, but there is no soil needed. Veggies are grown in nutrient water.
Please speak to your Rabbi, especially if you are unable to find or buy veggies locally. It could be a matter of health.
Learn More and Videos at https://foodrising.org
no soil, no electricity, no weeding, safe at home
Plant Nutrition Guide & Recipes (Advanced)
Research Paper A Suspended Net-Pot, Non-Circulating Hydroponic Method for Commercial Production of Leafy, Romaine, and Semi-Head Lettuce by B A Kratky, Univ. Hawaii
MiniFarm Grow Box Instructions: