Growth conditions:
Potato likes to be cold and cool, and it is a crop that likes low temperature. The formation and growth of underground potato requires a loose, breathable, cool and moist soil environment.
Temperature requirements for potatoes: the optimum temperature for tuber growth is 16℃~ 18℃, and when the local temperature is higher than 25℃, tuber growth stops; The optimum temperature for stem and leaf growth is 15℃~25℃, and it will stop growing when it exceeds 39℃.
Training points:
First, sow seeds.
Propagation with tubers, cutting potatoes into pieces according to bud eyes, ridge planting and sowing in March. When the average temperature exceeds 25 degrees Celsius, underground tubers stop expanding. It will mature in about three months.
Timely early sowing: timely early fertilization and early sowing, so that the whole growth period of potatoes is in a relatively cold and low-temperature season, and the formation and expansion of potato blocks avoid high-temperature periods.
Pay attention to the thickness of the soil. Generally, the soil thickness is not less than 12 cm. When sowing, if the covering soil thickness is insufficient, it should be 1~2 times with the growth of seedlings after emergence. The soil cover is too thin, the ground temperature changes sharply, and the stolons easily escape from the ground.
Second, on-site management
Potato plants are divided into aboveground and underground parts. The aerial part has aerial stems, pinnate compound leaves, buds and fruits. The underground part has underground stems, roots, stolons and tubers.
Whether the aboveground part bears fruit is related to the variety and external environmental conditions. Different planting time of the same variety in different years and in the same year will affect whether it blooms or bears fruit.
The products of potato cultivation are tubers produced underground, which are formed by the swelling of the top of stolons. They have many characteristics of aboveground stems.
Stolon, tuber and aboveground stem can be said to have no essential difference and can be transformed into each other under certain environmental conditions.
Third, fertilization.
Potatoes are generally fertilized according to the principle of "organic fertilizer as the main fertilizer, supplemented by chemical fertilizer, heavy base fertilizer and early topdressing".
Because organic fertilizer is rich in organic matter, it is beneficial to fertilization, loosening soil, improving soil fertility, and more conducive to potato tuber expansion and root growth.
In the process of potato growth, flowering period is the period when water and fertilizer are most needed, and it is also the season when the temperature rises and the rainfall increases, and it is also the stage when organic fertilizer gradually matures, decays and releases nutrients.
At this time, the conversion benefit of organic fertilizer and inorganic fertilizer in base fertilizer is expanding continuously, which meets the demand for nutrients during potato growth and promotes the growth and development of plants.
Fourth, pest control.
Potato is a widely planted crop in China, with high yield, rich nutrition and good taste, which is deeply loved by the public.
Potatoes are cool-loving crops, and can be sown when the ground temperature is lower than 25℃. In autumn, varieties with shorter growth period are generally selected, and 20-30 grams of whole potato is used as seed potato, which can improve the survival rate.
The field management of autumn potato mainly includes drought resistance and drainage, seedling condition inspection, weeding and fertilization. Pests and diseases are more active in autumn, so it is necessary to strengthen the management of disease prevention and pest control.
note:
Information Source Pengzhou Municipal People's Government Hosted Network:
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