Pillar soilless culture is a technology developed in recent years. Equipment materials: reinforced concrete arch frames without column support provide spacious interior for equipment installation. Nutrient solution tanks built at one end, 3m long, 1.2m wide, 1.6m deep. Columns use plastic woven fabric wrapped into 15cm diameter, 1.7m long. Installation: build cultivation beds 4.8m long, 0.5m wide, 12cm deep. Place assembled cultivation columns in beds, with 6 columns forming a row. Connect nutrient solution system: storage tank - circulation pump - filter - main pipe - bypass - capillary - drippers - columns - beds - return gutter - storage tank. Leafy vegetable nutrient solution formula for 1 ton water: calcium nitrate 236g, potassium nitrate 404g, ammonium dihydrogen phosphate 57g, magnesium sulfate 123g, iron chelate 16g, boric acid 1.2g, manganese chloride 0.72g, zinc sulfate 0.09g, copper sulfate 0.04g, sodium molybdate 0.013g.