>>2250669That's not how it works. Most crops don't all need harvesting at the same time and if they do they are bred for storage.
Let's take your example of carrots. Carrots are directly seeded into the prepped ground in spring, beginning of March. You weed and thin them for spacing and let them grow until your first harvest in June. You can harvest the largest carrots and let the small ones size up. The carrots can also sit in the ground until the end of season or even through the winter with proper coverage. One seeding of carrots in spring can bring you thousands of pounds and dollars of carrots that you can harvest by volume and sell each week at market. Say 200lbs for $400 a week for 15 or so weeks.
Other directly seeded root vegetables like beets, turnips etc. (parsnips you have to wait till september, sorry) can be harvested throughout the season and stored to overwinter in a similar way.
Other vegetables make fruit consistently and need to be harvested consistently or they will stop setting fruits. These are seasonal producers and usually not good storage vegetables. For example: green beens, tomatoes, eggplants, zucchinis. They will make a new crop for harvest every two days. You can make around $1-2 of income from a zucchini plant per season if you are prepared to get them at the right time.
If you grow the right vegetables, you can dehydrate what you don't sell fresh and then sell it later or eat it yourself. Here are some tomatoes sun drying in the sun from this season.
