These plants will first be started indoors and then placed outdoors in a 19l GrowBag. The GrowBag will be completely buried. Since it will likely be a very clayey soil, like in a cornfield, I would appreciate any tips and tricks. Best regards!
The grow bag is going to inhibit the roots... if the pot was made of peat or something degradable, that would be a different story - but those grow bags do not degrade. Plant directly in the soil! It should be very happy in the loam but you'll want to make sure it gets the kind of nutes cannabis needs... good NPK nutes with the emphasis on nitrogen during veg and on potassium and phosphorus when in flower...
Good luck! Is this YOUR corn field? Hope so... if not, you might lose the plant to the farmer's tilling of his field!
Ok my advice is to place the weed in the soil directly instead of using a grow bag. If you use grow bags or pots then you need to feed and water the plants all by yourself. But when you get rid of the grow bag then the roots can go way deeper inside the soil. And get all the nutrients and water they need from the soil instead of you need to provide them with everything yourself. You can add compost or nutrients and you still need to water when the soil is too dry during summer. But not as much as when you use a pot or grow bag. And you can make a lot more mistakes in the full earth instead of a small grow bag. Enjoy your grow and enjoy the summer!