Besides LST and HST methods for developing thick stems, the carbon dioxide (CO2) content in the air can also significantly affect yield; with sufficient concentration, the yield can be up to 25% higher than in low CO2 conditions. The type of lighting also impacts yield, including the spectrum and intensity of light (lux). If there are no space restrictions, you can increase yield by growing in a larger pot; I read somewhere that what's underground reflects what's above ground - so you can boost yield by increasing root space and, accordingly, nutrition with a larger watering volume. 👋 Good luck, bro! 👌