What should be done in the vegetable greenhouse flooded after the flood?

Abstract: how to remedy the flooded vegetable greenhouse?

Some time ago, under the influence of typhoon weather, floods occurred in many places, which seriously affected crops, especially the recent fluctuations in vegetable prices, which may have something to do with the impact of floods. So how to do a good job in the remediation of vegetables after the flood? Let's talk about it together.

What are the effects of flooding on vegetables?

After the flood, the water in the field is serious, which brings a lot of adverse effects to the growth of vegetables. It mainly includes: 1, the root activity of vegetables will decrease and grow slowly if the stagnant water time is too long, and at the same time, if the roots are soaked in water for a long time, it will lead to anoxic retting of the roots; 2, the increase of humidity in the field will not only affect the growth of vegetables, but also easily lead to the outbreak of diseases and insect pests, such as stem base rot, soft rot, etc.; 3. The soil is easy to harden after the flood, which leads to the slow growth of vegetable roots and the decrease of water and fertilizer absorption capacity. 4. under the influence of waterlogging, the loss of fertilizer in the field is serious.

What remedial measures should be taken after the flood?

After the flood, remedial measures should be taken in time to minimize losses. Mainly from the following aspects: 1. Timely elimination of stagnant water in the field to prevent vegetables from soaking in water for a long time leading to root necrosis and decay. 2. When the soil moisture is suitable, loosen the soil in the field in time, increase the soil permeability, improve the root activity, and correct the lodging vegetables in time. Rush to harvest ripe vegetables.

2. The way of reducing the transpiration of aboveground parts can be taken for the vegetables with serious root damage. Specific measures include: for melons and vegetables, subtract some yellow, old and rotten leaves, properly cultivate the soil, and promote the root system to restore growth. For legumes and leafy vegetables, we can wash the sludge left on the leaves with water, cultivate the soil on the border surface, and loosen the soil to prevent rotting roots.

3. Replenish fertilizer in time. Affected by the flood, fertilizer loss is serious, and the absorption capacity of water and fertilizer by vegetable root damage decreases, during this period, foliar fertilizer can be sprayed, such as 100,200 times liquid of Qingku Rick, plus foliar fertiliser, or instant fertilizer to supplement fertility. The plots with younger seedling age can not be replenished or made up less to avoid burning seedlings.

4. do a good job in the prevention and control of diseases and pests in time. High humidity in the field can easily lead to an outbreak of diseases and insect pests, so when the weather clears up after the flood, pesticides to control rot should be sprayed in time, and insect pests should also be controlled at the same time.

5. Replanting and scrambling for seeds in time. The lack of seedlings of newly planted vegetables after the flood is serious, those who can replenish seedlings should be replenished in time, and those seriously affected can be replanted fast-growing vegetables in time after drainage and soil preparation. Such as oil wheat, lettuce, chrysanthemum and other fast-growing leafy vegetables. At the same time, when planting autumn vegetables such as radish and cabbage, we should seize the time to sow seeds and raise seedlings.

In addition to mastering the above post-disaster remedial measures, farmers should also often pay attention to weather changes, do a good job of prevention in advance according to climatic conditions, and reduce the losses caused by meteorological disasters.

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