Question 1: How long should potatoes be planted? Potatoes are potatoes. Due to regional differences, the planting time varies greatly. They can be roughly divided into the following three types:

1 Northeast and Gansu In northwest regions such as Qinghai and Qinghai, potatoes are generally planted in spring (mid-to-late April to early May) and harvested in autumn. Usually only one season of potatoes can be planted a year, which is called the northern and northwest one-season cropping areas.

2 Shandong, Hebei, Henan, Shanxi, Jiangsu, Hunan, Hubei and other provinces and regions grow potatoes twice a year. Among them, spring potatoes are sown in the central plains such as Shandong and Hebei in February and March, and harvested from June to July; autumn potatoes are sown in August, and harvested from the end of October to early November; spring potatoes are sown in Jiangsu, Zhejiang and other central and southern provinces from January to February, and harvested in May. -Harvest in June; sow in September and harvest in December. These areas are called the Central Plains and Central-Southern two-season cropping areas.

3 In Guangdong, Guangxi, Hainan, Yunnan, Guizhou and other places, potatoes can be planted in the gap after the autumn rice harvest. Generally, the seeds are sown from mid-to-late October to November and harvested from February to March of the following year. Because most of the growing season is in winter, these areas are often called southern winter growing areas. Hope it will be adopted, thanks.

Question 2: How long is the growth cycle of potatoes? Growth cycle

1. Dormant period

After potatoes are harvested and placed in an environment suitable for germination but cannot germinate for a long time, this is physiological natural dormancy, which is a response to an adverse environment. Adaptability. Tuber dormancy begins at the point when the stolon tip ceases polar growth and the tuber begins to enlarge. The length of the dormancy period is related to the storage capacity of the tubers and whether the seedlings can emerge in time after sowing, and thus to the level of yield. The length of potato dormancy period is greatly affected by storage temperature. Under conditions of about 26 degrees Celsius, the dormancy period ranges from about 1 month to more than 3 months depending on the variety. Potatoes can remain dormant for a long time at temperatures of 0-4 degrees Celsius. The dormancy process of potatoes is determined by the direction of enzyme activity and is closely related to environmental conditions.

2. Germination period

The growth of potatoes begins with the germination of buds on the tubers. Only when the dormancy of the tubers is lifted can there be obvious growth of buds and seedlings. From bud germination to seedling emergence is the germination period, during which the first segment of the main stem grows. The center of growth during the germination period is the elongation of buds, the formation of roots and the formation of stolons. Nutrients and water mainly come from seed potatoes, which are supplied in the order of stems, leaves and roots. The speed and quality of growth are controlled by the environmental conditions required for seed potatoes and germination. The time taken for growth varies depending on the dormant characteristics of the variety, cultivation season and technical measures, ranging from 1 month to several months.

3. Seedling stage

From the emergence of the seedling to the flattening of the sixth or eighth leaf, that is, the growth of one phyllotaxis is completed, which is called a "tuanke", which is the second branch of the main stem. segment growth, the seedling stage of potatoes. The seedling stage takes a short time, only half a month regardless of spring or autumn planting.

4. Planting stage

From the twelfth or sixteenth leaf expansion, early-maturing varieties bloom in the first inflorescence; late-maturing varieties bloom in the second inflorescence. The sprouting stage of potatoes lasts about one month and is the growth of the third segment of the main stem. During the tree growth stage, the main stem begins to rise sharply, accounting for about 50% of the total height; the main stem and leaves have all been established, and branches and branch leaves have expanded. The root system continues to expand, and the tuber swells to the size of a pigeon egg. There is a transition stage in the growth center during the tree development stage. The end point of the transition stage is based on the balance between the dry matter mass of stems and leaves and the dry matter mass of tubers.

5. Tuber-bearing stage

This is the formation stage of tubers. After the plant growth period is completed, it enters the tuber-bearing period, which is dominated by tuber growth. During this period, the growth of stems and leaves decreases day by day, and the base leaves begin to turn yellow and wither. Organic nutrients from all parts of the plant are continuously transported to the tubers, and the tubers expand faster, especially 10 days after the flowering stage. The length of the potato-bearing period is subject to climatic conditions, diseases and variety ripeness, etc., and is generally 30-50 days.

Question 3: How long does it take for early potatoes to mature? It depends on the variety. Early-maturing potato varieties refer to varieties that can be harvested within 60-80 days after emergence, including very early-maturing varieties (60 days), early-maturing varieties (70 days), and medium-early-maturing varieties (80 days). These varieties have a short growth period and early tuber formation. , with fast expansion speed and short tuber dormancy period, it is suitable for second season cultivation and winter cultivation in the south, and can be planted appropriately densely.

Question 4: How long does it take to plant potatoes before they can be harvested? In the Northeast and northwest regions such as Gansu and Qinghai, they are usually planted in spring (mid-to-late April to early May) and harvested in autumn. Usually, they can only be planted once a year. potato. Provinces such as Shandong and Hebei grow potatoes twice a year. 2. Sow spring potatoes in March and harvest from June to July; sow autumn potatoes in August and harvest from the end of October to early November.

Question 5: How long does it take for potatoes to be harvested from planting to harvesting? More than 4 months

Remember to adopt it

Question 6: When is the harvest period for potatoes? In the Northeast and northwest regions such as Gansu and Qinghai, they are usually planted in spring (mid-to-late April) -Early May), autumn harvest, usually only one season of potatoes can be planted a year. Provinces such as Shandong and Hebei grow potatoes twice a year.

2. Sow spring potatoes in March and harvest from June to July; sow autumn potatoes in August and harvest from the end of October to the beginning of November;

Question 7: How many days does it take for potatoes to mature and harvest? Potato planting depends on you. Whether to plant early-maturing or late-maturing ones, early-maturing ones usually take about 65 days, and late-maturing ones usually take about 110 days.

Question 8: In which month should potatoes be planted? In what month will the harvest be harvested? Potato seed blocks are planted in the shed in early April every year. When the potato seedlings have grown to 2 inches high in early May, they are transplanted to the field. Early potatoes can be harvested half a month in advance by the end of June. The specific management techniques are as follows:

1. Cut into pieces for germination. 20 days before sowing, germination begins around early March. When cutting potatoes into pieces, each piece should have at least one bud eye. 10 to 15 yuan/jin is appropriate. After cutting, use small ash dry mix or carbendazim powder 1:200 times to sterilize and disinfect the water-soaked seeds. After the seed blocks are dry, the seedbed will be germinated. There are two methods: one is to use sand to germinate in a corner of the room with a room temperature above 15°C, layering sand one layer at a time and seed blocks one layer at a time; the other is to dig in the east-west direction in a ventilated and sunny place outdoors. For germination, the pit is about 25 cm deep, with one layer of sand and one layer of seed blocks, preferably three layers, and then covered with a shed film, and covered with straw curtains at night to keep warm. In the above two methods, water should be sprinkled 1 to 2 times during the germination period to prevent it from drying out. When the buds grow to a length of 0.5 to 1.0 cm, start sowing.

2. Preparing the land and digging ditches. Before planting, check the soil moisture. If the moisture is not good, you can consider irrigation ditches to create moisture. The moisture creation period should be 7 to 10 days before planting. Potato planting is generally done in double ditches. When digging ditches, large rows of 50 cm and small rows of 40 cm can be used.

3. Sow seeds and cover with film. The best period is from the Spring Equinox to the Qingming Festival. What should be mentioned here is that virus-free potatoes can be sown early in advance, sown before the Spring Equinox, and the plant spacing can be controlled at 20 centimeters. Before sowing, spray octyl sulfuric acid 1:10000 times along the ditch to prevent underground pests. Organic fertilizer can be spread directly into the ditch or during land preparation; chemical fertilizer can be divided into the ditch or spread between the seed blocks (be careful not to come into direct contact with the seed blocks). When sowing, there are two ways to place the seed block into the ditch: one is to put the seed buds downward. The potatoes grown by this method will have long roots and strong seedlings, with fewer potatoes but larger ones, but the seedlings will be 2 to 3 days late; the other method is With the buds facing upward, the roots of the potatoes grown by this method are relatively short, the potatoes are small but numerous, and the seedlings are 2 to 3 days early. After sowing, take soil from both sides of the big row, cover the potato ditch and the space in the small row with columbians, and cover with microfilm to compact it tightly.

4. Release of seedlings and management during the seedling period. After Qingming Festival, about 20 days after sowing, there will be seedlings exposed to the soil. At this time, you can dig out the microfilm at the seedlings and let the air out to prevent the seedlings from steaming. When the seedlings grow to 10 cm high, press the film around the seedlings tightly with soil to retain water and suppress the grass. It is not advisable to water potatoes in the early stages of growth. Water after the flowers appear. If there is no rain, you can water it every 10 days. Generally, it will mature after watering 2 to 3 times. Stop watering 10 days before harvest. Prevent insect pests such as aphids or thrips during the seedling stage.

5. Reasonable fertilization. Potatoes like to use farmyard manure, 4,000 to 5,000 kilograms per 666.7 square meters is appropriate. At the same time, nitrogen, phosphorus, and potassium should be used in combination when properly applying chemical fertilizers. Potatoes require a large amount of potassium. The scientific and reasonable fertilizer ratio of nitrogen, phosphorus and potassium is 1.85:1:2.1. Potatoes like to absorb ammonium nitrogen and absorb more sulfur. According to experiments, every additional kilogram of potassium sulfate fertilizer applied can increase potato yield by 100 to 150 kilograms.

Question 9: When is the right time to plant potatoes? How much can be planted per acre? Plant in December, harvest from April to May). In places above 2,000 meters above sea level, planting is mainly in spring (plant from the end of February to April, harvest from the end of July to October). Therefore, when it is suitable to plant, it should be arranged according to the local climate. The yield of potatoes in places with watering conditions can reach 4,000 to 6,000 jins (market jin). Potatoes require a large amount of potassium fertilizer. The reason why the stems are too tall may be due to the application of too much nitrogen fertilizer. It is recommended to use more farmyard manure and less. For specific technical advice on chemical fertilizers as base fertilizer, pest control, irrigation, and fertilization, it is recommended to borrow relevant books from local farmhouses or consult with people with planting experience.