So, you grow 64 pounds of new potatoes on just one pound of seed potato? Did I get that right?
That would be remarkable, remarkable indeed.
So, do you buy plants or like most of us buy seed potatoes? And you figure 64 pounds of new potatoes for each pound of seed potato?
Forget about lbs. Think about plants. 16 Red potato plants will each grow 4 lbs of new potatoes each. 16 plants x 4 lbs = 65 lbs. This is easy to do in TN with Red Pontiac potatoes because TN is hot as desert and Red Pontiac loves hot weather full sun all day.
Russet will not do 4 lbs per plant I be very lucky to get 1/2 lbs of new Russet potatoes per plant.
Yellow grocery store potatoes did 3½ lbs of new potatoes per plant.
Kennebec do about 2 lbs of new potatoes per plant.
If your growing Tomatoes how many lbs can you grow from 1 plant? I get about 35 lbs per plant for the whole summer?
If you grow sweet potatoes how many lbs do you get form 1 plant? I get about 25 lbs.
How many watermelons can you grow from 1 plant?
I learned a few tricks to have a good potato crop. Potatoes need soft soil. Heady hard soil prevents potatoes from growing large. Not enough water prevents potatoes from growing large. Too much nitrogen you get very large plants and small potato crop. If potato plants do not blossom you will have a small harvest. Plants grow best in warm temperatures 65 degrees and up.
My grandfather in southern Illinois would never plant potatoes until June and everyone else planted potatoes 2 month sooner. He planted a 100 ft row of potatoes with plants 8" apart = 150 plants his harvest was about 600 lbs of new potatoes. He had better sandy soil than I do in TN. I have a 190 of Red and White potato plants this year I hope to have 500 lbs. Red potatoes should be 400 lbs and white potatoes about 100 lbs. I hate to water plants they need 30 gallons of water every 3 days and 1-10-10 fertilizer about every 2 weeks. So far it has rained almost every day in 2 months I have not watered potatoes yet. My potatoes are covered with pine needles and dry tree leaves. Our soil is too heavy. I only buy seed potatoes if I can't buy grocery store potatoes I want. Kennebec potatoes are not sold in grocery stores so I have to buy seed potatoes. I found Red Norland & Yellow potatoes in grocery store.
Its never too late to plant potatoes. I planted potatoes year round last year. Not doing that this year. Here is a photo of the day I planted seed potatoes I think is was April 5th or 7th about 2 months ago.
The other picture shows plants about 28" tall. This is a ground level bed. Boards are a levee to hold in 30 gallons of water so it soaks in.
I have 500 candy onions in the other ground level bed. My water hose does 5 gallons per minutes.