Throwing away leftover vegetables and fruits in the Shmita

peace,
Like most people, I suppose I sometimes throw organic food scraps (peels, what you don’t eat from an apple, etc.) into various places in nature (in a way that they won’t see it so that it doesn’t look like garbage). Or for example, I have a small garden at home (only weeds grow there) that I sometimes throw there. The question is whether this is forbidden during the Shmita year because it might pollute the soil or for other reasons. thanks