Summer nursery seedlings during the high temperature period can easily lead to leggy seedlings, pests and other hazards. In Shouguang and other concentrated vegetable production areas, nursery facilities are complete, advanced technology, vegetable farmers choose to buy seedlings from the nursery. In areas where vegetables are scattered, farmers often raise their own seedlings. Recently, there are farmers in Zhejiang, Shaanxi, and other places calling to consult the relevant issues of summer nursery. Here, let's talk about the main points of summer seedlings for reference by farmers. The first stage: Before emergence, the seedlings are sensitive to moisture before they are unearthed. Therefore, we must pay attention to watering on time. Remember that we cannot allow the matrix in the plug to be dehydrated, ensure the normal unearthing of the seedlings, and if water shortage can easily postpone the emergence of the seedlings, cause Uneven seedlings are also likely to cause weak seedlings. The second stage: The period from emergence to cotyledon development is short. Due to the delicate structure of the seedlings, the light is strong and the temperature is high. This can cause burns. The weak light and high temperature can easily cause the growth of the hypocotyls to accelerate and cause the seedlings to grow. Therefore, we must pay attention to setting the shade net to cool the seedbed, adjust the time and intensity of seedlings to see the light, prevent direct sunlight from causing the seedlings to dry, and prevent the shading time from being too long and cause the seedlings to become leggy. The third stage: The period from the start of the cotyledon to the two leaves is the period when the seedlings provide nutrition from the seeds to make their own nutritional changes, and it is also a crucial period for the prevention of pests and diseases and the control of hunger during the seedling period. During the high temperature period, the main diseases that can easily cause dead seedlings are blight, damping-off and stem rot. The management should be based on prevention. After the two cotyledons have been developed, it can be sprayed or smashed with 1,000 times the amount of Propyzol 1000 times 30% hymexazol. Aphids, whiteflies, and leafminers are the main insect pests in the summer nursery. They can be used for foliar sprays of 2000 times of 10% imidacloprid or 2,000 times of 5% of acetamiprid. In addition to pest control, but also to prevent seedlings leggy, first we must pay attention to regulate the temperature and light, take cucumber as an example, the seedbed daytime temperature around 28 °C, night temperature around 18 °C, at least 10 hours to ensure the natural light, shade time Not too long. In addition, it is also possible to control the seedlings with a love-revenue 2000 times or a booster 750 times. The fourth stage: After two leaves and one heart start, when the two true leaves start, most of the vegetable flower buds begin to differentiate. Many vegetable farmers found that after the planting, the head and panicles were severely flowered, and the fruit deformities were much, which was related to the poor flower bud differentiation caused by improper management during the seedling stage. Great. Flower bud differentiation is mainly affected by temperature and light. During this period, attention should be paid to adjusting temperature and light. Taking pepper as an example, the temperature should be kept at 25-28°C during the day, and the nighttime temperature should be 15-20°C. When the temperature is higher than 35°C, flower bud differentiation will be affected. The results of the early flowering of the peppers in the sunshine of 10-12 hours are now about 15 hours. The black shade net is used to cover the seedbed to shorten the illumination time. In addition, after the first true leaf is unfolded, the vegetable farmer pays special attention to the prevention and control of viral diseases. The insect net can be used to cover the seedlings completely, and a yellow sticky board can be suspended to cut off pest transmission routes, kill some pests, or use 0.3% flavescens. Alkaline water 400 times, 1000 times of chitin, zinc-containing foliar fertilizer 500 times, etc. for 1-2 spray, both to prevent insects from spreading the virus, but also improve the disease resistance of the seedlings, the effect is good.

Use maintenance

A: The amount of clean tap water into the studio Water Tank, place the container.

B: Power on.

C: Select constant temperature:

Set the temperature "setting - measurement" selector switch to "Settings",  adjust the temperature control knob,  digital display the required set temperature.

Set the temperature "setting - measurement" selector switch to "measurement",  the figure shows the actual working temperature of the water tank (red indicator light, indicating the heater work).

D: work is completed, the temperature control knob at the minimum, cut off the power.

E: If the Water Bath pot is not used for a long time, the water in the studio water tank should be excluded,  wipe with a soft cloth and dry.

F: Do not use the heater in the water bath without water

Model

 

Specs

Single hole

 

DZKW-D-1

Double holes

DZKW-D-2

One line four holes

DZKW-D-4

One line six holes

 

DZKW-D-6

Double line four holes

DZKW-S-4

Double line six holes

DZKW-S-6

Double line eight holes

DZKW-S-8

Rated power(W)

300

500

1000

1500

1000

1500

2000

Work voltage(V)

220V   50Hz

temperature Uniformity

≤±1℃

temperature fluctuation

≤±1℃

Temperature control range

TR+10~100℃

Control temperature sensitivity

≤±1℃

Indication Error

≤±2℃



laboratory water bath

laboratory water bath

laboratory water bath

Factory:


Laboratory Water Bath


Laboratory Water Bath

Laboratory Water Bath



Water Bath

Water Bath,Laboratory Water Bath,Shaking Water Bath,Lab Water Bath

Cangzhou Blue Beauty Lab Instrument Co., Ltd. , https://www.czlabinstrument.com