After the heavy snow, it will be sunny again. How should the greenhouse vegetables be managed?

In recent days, the temperature in China has been lowered by several degrees. Even the snow has been floating in many places in the south. It can be said that it will provide a bumper harvest for the main wheat producing areas next year, but for our greenhouse growers, although vegetables will sell. A good price, but after the weather suddenly clears, the temperature in the shed will suddenly rise. For vegetables, it can not adapt quickly, it will show the phenomenon of ammonia poisoning.

大棚蔬菜

Ammonia poisoning symptoms in greenhouse vegetables :

After ammonia poisoning in vegetables, irregular blocky spots appear on the leaves, and burnt marks appear on the edges of the leaves. If the roots become dark, the water will lose the ability to absorb water and absorb fertilizer, and gradually die.

Planters in greenhouses should pay attention to it. Don't think that it is a deficiency or a disease, but it is wrong to supplement trace elements or use bacterial diseases. This is not good.

Give everyone a suggestion:

When the weather suddenly clears, you can use the pH test paper to measure the concentration of water droplets in the membrane. If the measured pH is above 8, you should consider ammonia gas, and immediately ventilate and exhaust;

大棚蔬菜种植

Greenhouse poisoning treatment plan for greenhouse vegetables:

1. If there is ammonia poisoning in vegetables, we should not only ventilate and ventilate, but also need to quickly water, reduce the concentration of fertilizer in the soil, or hurry to spray the brassinolide + gibberellin + 吲哚Acetic acid to adjust;

2. If you want to save money, you can also spray 1% vinegar solution directly on the leaves.

In the final analysis, when we grow vegetables, the base fertilizer and organic fertilizer must be fully decomposed; the fertilization should not be excessive, especially when the top dressing is used, it should be used in small amounts, or when fertilizing, directly dissolve the fertilizer into the water for flushing.

Greenhouse growers! Have you learned how to manage the weather suddenly after the snow has cleared? Leave a message in the comments section if you have any questions.

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