The year is in spring, and it is also a good time to plant onions to cultivate disease-free and strong seedlings. Want to produce high quality onions is inseparable from good seeds and strong seedlings. The cultivation of disease-free and strong seedlings is also inseparable from the scientific management of seedlings. Here is the key to cultivating disease-free and strong seedlings.
First, anti-high temperature steaming seedlings
Onion seedlings have a certain range of requirements for the temperature inside the shed during their growth. After the onion seedlings are out, the temperature should be properly controlled, especially the nighttime temperature should be strictly controlled, which is the key to controlling the seedlings. The seedlings that have just emerged from the seedlings have weaker ability to withstand high temperatures. Generally, the daytime temperature of onion seedlings is controlled at 15 to 20 °C, and the nighttime temperature is controlled at 8 to 12 °C. Especially after Miaoqi, we must pay attention to temperature control and ventilation to prevent high temperature steaming.
Second, anti-freezing seedlings
Onion sprouts, mostly before and after the beginning of spring. Although the weather is warmer and the seedlings are all in the greenhouse and the arch shed, the Hexi Corridor in Gansu is prone to “cold spring†weather. Extremely low temperature weather has a great impact on the onion seedlings. In particular, the greenhouse heads must be careful to collect the windshield and cover the curtains. In order to prevent freezing seedlings. The night temperature in the shed is too low, and the onion is not long.
Third, anti-drug injury
In the process of onion seedlings, pesticides or fertilizers will definitely be sprayed. However, timely and appropriate application of good quality, symptomatic drugs and fertilizer is the key. If improperly applied, the problem of root injury and leaf burning will occur, which will directly affect the normal growth and development of onion seedlings.
To promote root development and prevent root rot, it can be applied to Dailexen, or taigenda, or Ludi biochemical fulvic acid.
Anti-freezing, growth-promoting, breeding seedlings, can be alternately sprayed with Ataying + Spray Wang + Calmen, Ataying + Plant Life Source, Altai Ling + Liguo.
Fourth, the prevention of seedling disease
Onion seed bed diseases mainly include rickets and root rot. These two diseases are the most important diseases during onion seedlings. Early prevention and early treatment are the key to effectively control the disease of bed seedlings, root rot and cultivate disease-free seedlings. The following joint medication recommendations are available for your reference.
1, pharmacy spray
Prevention: Onion 2 leaves should be sprayed after 1 heart: 70% frozen WP 30g, or 50% WP 30g + 11% Shield Suspension 10ml, or 32% Mingwo suspension 15 grams of plant + 30 ml of plant life source, spray spray bed (1 to 2 kg of liquid per square meter) to 1 sprayer water (15 kg, the same below) to promote root system, improve disease resistance and cold resistance. About 15 days after the medicine, it is better to spray again.
Treatment: In the early stage of the disease, 30 g of 30% syrup suspension, or 7 g of 75% poly bright water dispersing granules, or 15 ml of +11% Shield suspension, or 32% of Mingwo suspension 20 g + 30 % Wofeng Kang water agent 30 ml, 1 sprayer water spray seedbed (1 ~ 2 kg per square meter of liquid medicine), to control the disease hazard faster. About 10 days after the medicine, spray again with the above formula.
Warm reminder: Whether it is prevention or treatment, generally 50 to 60 meters shed, at least 10 sprays of liquid medicine should be sprayed to allow the liquid to fully penetrate into the soil surface.
2, pharmacy
Onion 2 leaves 1 heart, or after the disease occurs, generally 50 ~ 60 meters shed length, available 70% Tofun WP 2-3 bags (1 ~ 1.5 kg), or 50% Yangnong carbendazim WP 4 ~ 5 bags (1.6 ~ 2 kg), or 50% Yangnong farmers WP 2 bags (2 kg) + 11% surplus shield suspension 200 ~ 250 ml, or 32% Mingwo suspension 200 g, or 30 % Wofeng Kang water agent 300 ~ 600 ml, diluted with appropriate amount of water, combined with irrigation water with water. Depending on the condition, the drug is applied once more than 15 days after the drug. (The dosage should be increased or decreased according to the length of the shed, the severity of the illness, etc.)
The above agents are for reference only, you can also choose to use the same effect. Onion seedlings need to be strengthened to manage and cultivate strong seedlings, and the survival rate can be improved when transplanting.
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[Name] Medical Cold Patch
[Package Dimension] 10 round pieces
The pain relief patch is composed of three layers, namely, backing lining, middle gel and protective film. It is free from pharmacological, immunological or metabolic ingredients.
[Scope of Application] For cold physiotherapy, closed soft tissue only.
[Indications]
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[How To Use a Patch]
Please follow the Schematic Diagram. One piece, one time.
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[Attention]
Do not apply the patch on the problematic skin, such as wounds, eczema, dermatitis,or in the eyes. People allergic to herbs and the pregnant are advised not to use the medication. If swelling or irritation occurs, please stop using and if any of these effects persist or worsen.notify your doctor or pharmacist promptly. Children using the patch must be supervised by adults.
[Storage Conditions]
Store below 30c in a dry place away from heat and direct sunlight.
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