Potato field management technology and main points

Although the price of potatoes is not expensive, the market demand is still quite large, from the export to the small fries, all of which are processed using potatoes as raw materials. In the process of potato cultivation, if these details are not done well, it will be difficult for potatoes to achieve high yield.

Potato field management technology and main points

1. Check and supplement seedlings

After the potatoes are ready, the seedlings should be checked in time, and if there is a lack of seedlings, the seedlings should be replenished in time to ensure the whole seedlings. When planting the seeds, plant the surplus potato pieces close to the field to supplement the seedlings. When replanting seedlings, if there are diseased rotten potatoes in the lack of holes, the diseased potatoes and the surrounding soil should be dug out before replanting. When the soil is dry, dig holes and water and combine with a small amount of fertilizer to plant seedlings to reduce the time for seedlings to resume growth as soon as possible.

2. Cultivating soil

Cultivating loose soil can loosen and aerate the soil in the tuber layer, which is beneficial to root growth, creeping elongation and tuber expansion. Before emergence, if the soil is slab-bound, loosen the soil to facilitate emergence. After Qi Miao, timely carry out the first plowing, depth 8 ~ 10 cm, combined with weeding, 10 ~ 15 days after the first plowing, the second plowing should be slightly shallow. When buds appear, the third plowing is shallower than the second plowing.

Potato field management technology and main points

3. Top dressing in time

Potatoes take a long time from sowing to emergence. After emergence, the sprouting fertilizer should be applied with clear manure water and a small amount of nitrogen fertilizer to promote the rapid growth of seedlings. In the current bud period, topping potato fertilizer with soil cultivation is applied once, mainly with potassium fertilizer, combined with nitrogen fertilizer. The amount of fertilizer depends on the growth of the plant. After flowering, fertilization is generally no longer used. If the phenomenon of defertilization and premature aging appears in the later period, foliar spraying can be carried out with phosphorus and potassium or combined with trace elements.

4. Pest control

Common diseases of potatoes are viral diseases, late blight, bacterial wilt, ring rot, scab, cancer, etc. Late blight should be controlled with Bordeaux solution or toadstool as early as possible. The control methods of bacterial wilt are mainly through Reasonable rotation, selection of disease-resistant varieties and the use of small whole potatoes as seeds for control. Pests mainly include ladybugs, silkworms, aphids, grubs, mole crickets, etc., which can be controlled by drugs or artificial killing.

Potato field management technology and main points

5. Harvest in time

When the plant growth stops and the stems and leaves are mostly yellow, the tubers are easily separated from the stolons, the pericarp is hardened, and the dry matter content reaches the maximum limit, which is the optimal harvest period for edible tubers. The use of tubers should be 5-7 days in advance Harvesting to reduce the adverse effects of high temperature in the later stages of growth and improve seed quality.

6. Storage

Remove the diseased potato, the damaged potato and the deformed potato from scratched seed coat, and store them separately in a cool (1-4℃), dry and ventilated place, each layer is 50cm thick. Check it every 20 days or so to pick out rotten potatoes to prevent the spread of other potatoes.

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