I think there are two sides to the situation. First of all, the addict needs to be talked to and told the disadvantages of what he has gotten into. He or she should be motivated to achieve higher goals in life, which are not possible with a drug addiction. Secondly, the addict needs practical help in leaving the addiction, as getting out of an addiction is not easy. I think he or she should be assigned both a psychologist and a close friend to help him and gradually decrease his or her drug intake.
Crops such as wheat or corn absorb a large amount of nutrients from the soil. To remedy this, farmers plant crops such as rye, buckwheat, radishes, turnips and other cover crops.