When is the best time to grow potatoes?

There are also certain rules in the cultivation of potatoes, because there are certain temperature requirements for potatoes, so it is necessary to have an accurate grasp of the planting time and fruit time of potatoes, so as to ensure that potatoes can grow more robust fruit. So when on earth should potatoes be sown?

The best time to grow potatoes

The important condition to determine the suitable sowing time of potato is the temperature of the growth period. In principle, the peak period of potato fruiting should be kept under the condition of daily average temperature of 15 ℃ 25 min. The longer the period suitable for the continuous growth of tubers, the higher the total weight. Most of them are planted after harvesting late or medium rice. It is better to sow autumn potato from late September to late October and winter potato from late December to mid-January.

The growing environment of potatoes

1. Soil: the sandy loam has more sand and good ventilation, but the soil with poor ability of water and fertilizer conservation prefers acidic soil.

1. Temperature: the most suitable temperature for plant growth is about 21 degrees, and the optimum temperature for flowering is 15 to 17 degrees. Of course, due to the different cold resistance of varieties, the response to temperature is also different.

2. Moisture: not too dry and too wet.

4. Sunshine: potatoes are light-loving crops and are placed in places where there is plenty of light indoors.

5. Fertilizer: among the three elements of nitrogen, phosphorus and potassium, potato needs the most potassium fertilizer, followed by nitrogen fertilizer and less phosphorus fertilizer.

Field Management of Potato

1. Check the seedlings and replenish the seedlings: check the seedlings in time after the potatoes come out, and replenish the seedlings if there are missing seedlings in time to ensure the whole seedling. When sowing, the excess potato pieces are densely planted in the field to replenish seedlings. When replenishing seedlings, if there is a diseased rotten potato in the hole, the diseased potato and its surrounding soil should be dug up first and then the seedlings should be replenished. When the soil is dry, the seedlings should be planted after digging holes and watering, combined with a small amount of fertilizer, so as to reduce the slow seedling time and restore growth as soon as possible.

2. Cultivating soil with middle tillage: loosening and aerating the soil of tuber layer by ploughing loose soil, which is beneficial to root growth, stolon elongation and tuber expansion. If the soil surface is hardened before emergence, the soil should be loosened to facilitate seedling emergence. After finishing the seedlings, the first intertillage was carried out in time, with a depth of 8 cm and 10 cm, combined with weeding, 10-15 days after the first intertillage, and the second intertillage should be slightly shallow. When budding, the third intertillage is carried out, which is shallower than the second intertillage.

3. Timely topdressing: potatoes take a long time from sowing to emergence. After emergence, it is necessary to use clear dung water and a small amount of nitrogen fertilizer as soon as possible to promote the rapid growth of seedlings. In the bud stage, combined with soil cultivation, one-time topdressing of potato fertilizer, mainly potassium fertilizer, combined with nitrogen fertilizer, the amount of fertilizer depends on the growth and appearance of the plant. Generally no longer fertilize after flowering, if the late stage shows the phenomenon of premature senility, phosphorus and potassium or combined with trace elements can be used for foliar spraying.

4. pest control: the common diseases of potatoes are virus disease, late blight, bacterial wilt, ring rot, scab, cancer and so on. Late blight should be prevented and treated with Bordeaux solution or Rhizoctonia solanacearum as soon as possible. the control methods of bacterial wilt are mainly through reasonable rotation, selection of resistant varieties and small whole potato as seeds. The main pests are ladybugs, soil silkworms, aphids, grubs, mole crickets and so on.

5. Timely harvest: when the plant growth stops and most of the stems and leaves are yellow, the tubers are easily separated from the stolons, the periderm hardens, the specific gravity increases, and the dry matter content reaches the maximum, that is, the optimum harvest time for edible tubers. The use of tubers should be harvested 5-7 days in advance to reduce the adverse effects of high temperature in the later growth stage and improve the species.

Storage of potatoes

1. Put the potatoes in the cellar and keep them for at least 3 months as long as the temperature and humidity are moderate.

2. Put the potato and apple or banana peel in a box together. The ethylene gas emitted by the apple or banana skin can keep the potato fresh.

3. Put the potatoes in a sack or box, bury them with blighted grain or sand, and press them tightly. It is covered with plastic bags or some waste paper.

4. Remove the roots of the dug potatoes and wash them. Bury it in the sand, and then press the sand to prevent it from being breathable. Just dig it up when you eat it.

There is a certain similarity between potato planting and human growth, and a good growth environment is the basis to ensure that potatoes can blossom and bear fruit smoothly. In addition, in the process of planting, growers need to be carefully cultivated, so that potatoes can grow more smoothly, healthier and take fewer wrong paths.