When is the best time to plant potatoes?

There is also a certain pattern to planting potatoes. Because potato tuber formation has certain temperature requirements, you need to have an accurate grasp of the planting time and the fruiting time for potatoes, so that the potatoes can grow sturdier tubers. So when exactly should potatoes be sown?

The best time to plant potatoes

An important condition for determining the suitable sowing time for potatoes is the temperature during the growing period. In principle, the peak tuber formation period of potatoes should fall under an average daily temperature of 15-25 degrees C. The longer this period suitable for continuous tuber growth, the higher the total weight. Most are planted after harvesting late rice or middle rice. For autumn potatoes, sowing from late September to late October is best, while for winter potatoes, sowing from late December to mid-January is appropriate.

The growing environment of potatoes

1. Soil: Sandy loam soil contains more sand and has good aeration, but has relatively poor water and fertilizer retention; it prefers acidic soil.

1. Temperature: The most suitable temperature for plant growth is about 21 degrees, and the most suitable temperature for flowering is 15 degrees to 17 degrees. Too high or too low a temperature is unfavorable to plant growth. Of course, because varieties differ in cold resistance, their responses to temperature also differ.

2. Water: It cannot be too dry or too wet.

4. Sunlight: Potatoes are light-loving crops, so place them in a spot indoors with plenty of light.

5. Fertilizer: Among the three key elements of nitrogen, phosphorus, and potassium, potatoes need the most potassium fertilizer, followed by nitrogen fertilizer, and need relatively little phosphorus fertilizer.

Field management of potatoes

1. Checking seedlings and replanting: After potatoes emerge completely, check the seedlings in time, and replant missing seedlings promptly to ensure a full stand. When sowing, densely plant extra seed tubers at the edges of the field to use for replanting. When replanting, if there are diseased or rotten tubers in the missing holes, first dig out the diseased tubers and the surrounding soil before replanting. When the soil is dry, dig holes, water them, and plant the seedlings after applying a small amount of fertilizer, to reduce the time for seedling recovery and restore growth as quickly as possible.

2. Cultivation and earthing up: Loosening the soil by cultivation makes the tuber-bearing soil layer loose and well aerated, which helps root growth, stolon elongation, and tuber expansion. If the soil surface crusts before emergence, loosen the soil to help emergence. After full emergence, carry out the first cultivation in time, to a depth of 8-10 cm, and combine it with weeding. 10-15 days after the first cultivation, carry out the second cultivation, which should be slightly shallower. At the bud stage, carry out the third cultivation, shallower than the second.

3. Timely topdressing: Potatoes take a relatively long time from sowing to emergence. After emergence, apply a sprout and seedling fertilizer early using clear manure water plus a small amount of nitrogen chemical fertilizer to promote rapid seedling growth. At the bud stage, combine earthing up with one tuber-forming fertilizer, mainly potassium fertilizer together with nitrogen fertilizer; the amount applied depends on the plant's growth vigor and appearance. Generally, no more fertilizer is applied after flowering. If nutrient deficiency and premature aging appear later, phosphorus and potassium or combined trace elements can be sprayed on the leaves.

4. Pest and disease control: Common potato diseases include viral diseases, late blight, bacterial wilt, ring rot, scab, and wart disease. For late blight, pay attention to early control with Bordeaux mixture or Ridomil. For bacterial wilt, control methods mainly include reasonable crop rotation, choosing disease-resistant varieties, and using small whole tubers as seed, among other measures. Pests mainly include ladybugs, cutworms, aphids, grubs, and mole crickets, which can be controlled by chemicals or hand-catching, among other measures.

5. Timely harvest: When potato plants stop growing and most stems and leaves turn yellow and withered, the tubers separate easily from the stolons, the periderm hardens, specific gravity increases, and dry matter content reaches its maximum, which is the optimal harvest period for edible tubers. For seed tubers, harvest 5-7 days earlier to reduce the adverse effects of high temperatures in the later growth stage and improve seed quality.

Storing potatoes

1. Put potatoes in bags and place them in a cellar; as long as the temperature and humidity are moderate, they can be stored for at least 3 months.

2. Store potatoes together with apples or banana peels in a box. The ethylene gas released by the apples or banana peels can keep the potatoes fresh.

3. Put potatoes into burlap sacks or crates, bury them with chaff or sand, and press firmly. Cover the top with plastic bags or some waste paper.

4. Remove the roots from the dug potatoes and wash them clean. Bury them in sandy soil, then press the sandy soil firmly so that air cannot pass through. Dig them out when you want to eat them.

There is a certain similarity between growing potatoes and human growth. A good growing environment is the foundation for ensuring that potatoes can flower and fruit smoothly. In addition, during the growing process, the grower's careful cultivation is needed, so that potatoes can grow more smoothly and healthily and take fewer wrong turns.