How to plant vegetable slow seedlings after light snow

After the snowfall, the weather is getting colder and colder. Planting vegetables in the cold season, how can we promote it to ease seedlings as soon as possible? Here, the author summarizes the following points for reference by farmers.

First of all, the greenhouse should be closed before planting. Before planting the vegetables, it is necessary to close the sheds three days in advance and raise the temperature of the shed to 35°C or more. The temperature will promote the temperature to rise. Moreover, the temperature of the closed greenhouse before colonization also facilitates the promotion of microbial activity in the soil, accelerating the decomposition of organic manure such as chicken manure and the decomposition of humus in the soil, thereby promoting the absorption of nutrients in the soil by the vegetable roots after planting. It should be noted that three days before the vegetable is planted, it is necessary to open the air outlet and ventilate the exhaust to prevent the harmful gases accumulated in the shed from harming the vegetables. However, the temperature in the shed still needs to be kept above 30°C to prevent the temperature of the ground from falling. Slow seedling speed after planting.

Second, after the water should be planted. When planting vegetables, the practice of watering after planting should not be used. This will cause a drop in the ground temperature, which is not conducive to slow seedlings. It is best to open the ditch or dig a hole after the water is planted. The most successful practice is: first pouring water once, after the water is closed again to raise the warmth, and then from a high ridge, ridge roof to open a small ditch, when planting vegetables in the ditch, scoop water dipper irrigation ditch. Colonization in this way can prevent the ground temperature from falling due to pouring large water, and the slow seedlings of vegetables can occur slowly.

The most important thing is that we must do a good job of moisturizing and moisturizing vegetables after planting. Within 7 days after the vegetable is planted, it is necessary to use moisturizing and moisturizing to reduce the ventilation time as much as possible, and to promote the planting of the newly planted vegetables as soon as possible. Under normal circumstances, the humidity in this period is easy to reach and it can be maintained at around 80%. The most important thing is to do a good job of insulation work. Usually, the seedlings of solanine vegetables should be controlled at 30°C~32°C during the day and 15°C~18°C at night. The melon vegetables should be controlled at 30°C~35°C during the day. Should be controlled at 16 °C ~ 18 °C at night. Generally, after 7 days, the vegetables can basically spend the slow seedling period. At this time, the tuyere can be pulled gradually and the temperature of the greenhouse can be reduced by 2°C~3°C.

In addition, after the seedlings are sent, it is best to place them in the shed for a period of time to adapt them to the environment inside the shed before planting.

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Highlights:

> Measurement frequency: 100 Hz (Max 200 Hz)
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It03m Long Range Tof Sensor Module Diagram

Parameters of IT03M:

Accuracy

+/-5cm@ 0.1~2.5m

Measuring Unit

cm

Measuring Range (without Reflection)

0.1-15m

Measuring Time

0.1~3 seconds

Measuring Frequency

100 Hz

Laser Class

Class II

Laser Type

650nm, <1mw, red

Weight

About 10g

Voltage

DC2.5V~+3.5V

Serial Level

TTL 3.3V

Size

50*26*13mm

Operating Temperature

0-40 ℃ (32-104 ℉ )

Storage Temperature

-25~60 ℃ (-13~140 ℉)


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