Getting better yields from small plants

Sorry for the confusion everyone, but the plant is an autoflower so, unfortunately, there is no re-veg option available. I agree with @JUNGLE_B4RNS , there is not much that can be done now. It's best to let this one be as is and prepare better for the next plant. I'll definitely be looking into Mycorrhiza and Rhizobacter as a way to boost root growth early.

You grow outdoors so you can do nothing about it let her bloom next time start with the growth way early around spring when the warmer period starts to kick off mid-may or something Well right now what you can do if you have indoors to place her in a tent with 16+ hours of lights on and do the re-veg then when you ready switch to +10h of night to start with her bloom If you don't have a tent just let her be 🍻

Hola amigo leo en su diario que su planta es fotoperiodica y cultiva en exterior. Con esa información puedo pensar que germinó su semilla en temporada de floración. Su planta se estirara un poco más. Si quiere revertir la etapa de floracion a una etapa vegetativa, solo tiene que poner un foco sobre su planta con un fotoperiodo de 18hs de luz y 6 de oscuridad. Pero esto es un proceso que postergara la fecha de su cosecha. Si no dispone de ese tiempo tenga en cuenta su ph y ec que estén en los rangos adecuados para una mayor producción posible

The reason for her small stature is her short genetics, a transplant from a 2L pot to a 9L pot, and 2 sessions of LST. I feed her 524NPK twice a week in small doses and will switch to Bloom nutes later this week. This is more of a test grow to learn and I'd be happy to reach a goal of 15-20grams of dry bud if possible.