Potato spring sowing tips

The growth period of spring potato in the two seasons is not long, which is the main factor affecting the yield. According to many years of experiments, the average temperature in the lower reaches of the Yangtze River has reached 5 °C in February, and the early live broadcast in mid-February will not cause freezing.

Early planting, although not early unearthed, is conducive to the development of roots under low temperature conditions, a small number of early-developed potato buds, low temperature tolerance. Even if the unearthed potato buds are endangered by the night frost, the seed buds and roots are not damaged by freezing, and the secondary buds can be germinated, and the emergence is still early. Therefore, early planting is one of the keys to the high yield of spring potato.

The cultivation of potatoes in the middle and lower reaches of the Yangtze River can be basically divided into the following three forms:

1. “Gypsophila”: The line spacing is generally about 20 cm. In order to increase the sowing depth, the second plough is covered with the ploughing and the sowing. This cultivation method removes the ditch, and can plant more than 12,000 trees per mu. It has high density, early closure, poor ventilation, many diseases, and extensive management. It cannot be cultivated in the growing season. Therefore, “outcrop green” and small potato chips are more. The quality is poor and the output is low. This kind of seeding should not be promoted.

2, the plant spacing 20 cm, the row spacing increased to 40 cm, remove the ditch, can plant more than 6,000 trees per acre, this planting method, the number of plants is small, the ventilation is good, the disease is less, easy to cultivate the soil, "outcrop green" less, is the current The most common method of seeding.

3, double row high ridge cultivation method: its large behavior 70 ~ 90 cm, small behavior 10 cm, plant spacing 25 ~ 30 cm, triangular planting, can plant more than 6,000 trees per acre. This kind of planting method is bigger between rows, better ventilation, and can be cultivated many times. The potato chips produced are large and the output is high.

In order to obtain high yield of potato, when considering the planting method, it is necessary to pay attention to the expansion of the line spacing and the number of main stems. The way to overcome the contradiction between the two is that while expanding the line spacing, it is necessary to promote clumping, increase the broadcast size, and increase the number of main stems. Expanding the line spacing and improving the growth conditions can capture the high yield of individual plants, ensure the number of main stems, and capture the high yield of the population.

As much as possible to enlarge the line spacing (can be enlarged to 50-60 cm), the benefits of corresponding reduction of plant spacing are: (1) after the tree is released, it will not seal the canopy, causing the lower leaves to yellow and shorten the functional period of the leaves; (2) is beneficial to Ventilation and light transmission, improve photosynthetic strength; (3) Conducive to soiling, and the line spacing is too small, the operation is inconvenient, the soil culture is not high, and the soil will also break the stolon and affect the potato.

Seeding method

Drilling things to the ditch, the depth of the ditch is 10 to 13 cm, and the seed potatoes that have been germinated are grading according to the size of the buds, and the seeds are sorted according to the size of the buds. After the seeding, the soil is covered with the soil of the south side by 3 to 5 cm thick (the sand should be It is slightly thicker than the glue), and the rest piles in the north to block the wind. If there are conditions, it can be mixed with manure, manure, garbage, grass ash, etc., which can increase the temperature, increase the emergence of seedlings, and increase the fertilizer efficiency.

Because the ground temperature in 2 and 3 months is still low (below 10 °C), and the suitable temperature for potato germination is 12-18 °C, the ground temperature can be raised in advance. The mulching film is very effective. The 0.015 mm thick mulch requires about 10 kg per mu. The ground should be leveled, the cover should be tight, cover the ditch, and the temperature increase should be obvious. After emergence, it is necessary to break the membrane in time to make the seedlings pass the low temperature exercise and improve the ability to resist frost.

After the sowing, the excess potato pieces should be temporarily planted on the ground or between the rows to prepare seedlings for replenishment.

Breathing System

For the treatment of diseases of the respiratory system:
Diseases and conditions of the respiratory system fall into two categories: Viruses such as influenza, bacterial pneumonia and the new enterovirus respiratory virus that has been diagnosed in children; and chronic diseases, such as asthma and chronic obstructive pulmonary disease (COPD). According to Dr. Neal Chaisson, who practices pulmonary medicine at the Cleveland Clinic, there is not much that can be done for viral infections but to let them run their course. "Antibiotics are not effective in treating viruses and the best thing to do is just rest," he said.

COPD is the intersection of three related conditions - chronic bronchitis, chronic asthma and emphysema, Chaisson told Live Science. It is a progressive disease that makes it increasingly difficult for sufferers to breath.

Asthma is a chronic inflammation of the lung airways that causes coughing, wheezing, chest tightness or shortness of breath, according to Tonya Winders, president of the Allergy & Asthma Network. These signs and symptoms may be worse when a person is exposed to their triggers, which can include air pollution, tobacco smoke, factory fumes, cleaning solvents, infections, pollens, foods, cold air, exercise, chemicals and medications.

Lung cancer is often associated with smoking, but the disease can affect non-smokers as well. Every year, about 16,000 to 24,000 Americans die of lung cancer, even though they have never smoked, according to the American Cancer Society. Like all cancers, lung cancer is caused by the uncontrolled growth of abnormal cells.

Breathing System,Dextromethorphan Medicine,Ambroxol Medicine

NOUVASANT GROUP LTD. , https://www.nouvasant.com