Less energy will be used to heal the cut surfaces, making more energy available for growth. All cut surfaces should be smooth. Any jagged or torn surfaces will invite seed-piece rot.

Seed of potatoes can be freshly cut and planted into soil.
If the seed potatoes are cut well before planting, place them to store at 50 to 55 degrees F and over 90 percent humidity. This will help the cut surfaces to heal. The healed seed pieces can then be held at low temperatures until planting.

How to plant seed potatoes

You will need 8-10 pounds of seed potatoes for every 100 feet of planted row.
Mark out rows (60cm apart for ‘earlies’ and 75cm apart for main crop varieties) by drawing a straight line with a trowel, marking both ends with a stick
Dig hole 12cm deep for each seed potato, placing the seed potato shoots uppermost and then fill in the hole.
Proceed onwards digging holes (30cm apart for earlies and 40cm apart for main crop) until all seed is planted at the appropriate spacing according to the type.
Generally, soil is hilled or mounded around the plants as they grow. Hills provide room for the tubers to develop, provide added soil drainage, and minimize tuber greening later in the year. It is best to hill around the potato plants within 4 weeks of planting.

Seed potatoes to grow in straw

Avoid the temptation to buy potatoes for planting from the supermarket. These potatoes may be treated with sprout inhibitors or may carry disease organisms to contaminate your garden soil.
Start by choosing an early maturing variety such as Norgold Russet or Superior (a white potato) at your local garden center.

Growing potatoes in straw technique

When potatoes are planted in straw, there are very few weeds.
Growing potatoes in straw you will see the sprouts quickly. Once they have grown four to six inches, you need to cover them with more straw until only an inch of the new growth shows through. Then the plants grow another four to six inches. Keep repeating this procedure for two or three more cycles. The potatoes will set out new roots in the straw and in turn will produce more potatoes..
If there isn’t much rain, be sure to water them. Keep your container from mice. The hay attracted mice looking for seeds and you can lose of the crop.

Harvesting potatoes grown in straw

New potatoes can be harvested easily even before the potato vines mature completely. When the potatoes are ready to harvest, one can simply pull back the straw and remove by hand as many potatoes as needed, then replace the straw properly in order to keep the light off any remaining potatoes. You may harvest this way a number of times. The plant will produce more and more potatoes until the vine dies.