Drainage to clear the ditch, conditionally open the drainage equipment, eliminate water in the garden, reduce the groundwater level, to accelerate the drying of the topsoil, to avoid long-term baptism of plants, causing root growth, bad roots, rot, resulting in deciduous fruit, or even the entire plant death.
Clean up and thoroughly inspect the nursery area, clean up the debris, and wash the mud on the branches and leaves of the plants in time with water. The seawater is poured into the nursery and the salt washing work must be done. At the same time, in order to avoid the spread of diseases, dry debris, rotten leaves, wood, stones and other debris from the fields are blown off in time.
Prune the branches cut off by the typhoon and immediately saw them off. Cut away branches, leaves, and fruits that are severely damaged and prune them moderately. Pruning is mainly based on thinning, sparse leaves and short cuttings. The amount of pruning depends on the growth potential and the degree of damage of the affected plants. The stronger the growth, the greater the amount of pruning, and the more severe the damage, the poorer the ability to cockroach and the damage. Small to sparse leaf.
It should be noted that when the rainy season is trimmed, the wound is extremely susceptible to pests and diseases. Care must be taken to ensure that the cuts are smooth and smooth during shearing, minimizing damage to the bark surrounding the wound and preventing tearing. After trimming, use a paraffin wax or a paint to treat the large incision, which can be used to inject 200 times fluid to prevent germ invasion.
The flowers and trees that are blown down by the typhoon must be righted and supported at the right time. This is when the seedlings grow vigorously. The seedlings are easy to form. If the seedlings are not timely and righted, they will change in three or five days. For trees that have been washed down by floods, the trees should be straightened as soon as possible, and support and fixation should be set up. The exposed roots should be re-buried in the soil and the soil should be covered.
The cultivator cultivated the soil in time to increase the ventilation of the soil. After the nursery site was flooded for more than 3 days, the soil was air-dried after being dredged, and the rot was reduced. After 1-2 days, the soil was mulched.
Outside the top dressing can be used 0.1-0.2% potassium dihydrogen phosphate, urea, and foliar fertilizers for extra-root fertilizer. Every 10 days or so, spray 2-3 times. After the tree potential is restored, the decomposed manure, animal manure, cake fertilizer or urea are applied to promote new roots.
If facilities, equipment, and repairs of greenhouses, shade sheds, membranes, or shaded nets are damaged, they should be repaired as soon as possible so as to avoid further damage. Water tanks and water towers should be repaired quickly to avoid water shortage and affect plant growth and development.
Diseases and Insect Pests Prevention After the disaster, there are root rot, gray mold, soft rot, epidemic, sunburn, epidemic, black spot, and anthrax. It is necessary to promptly spray control and irrigate the roots. The agent can use 1% Bordeaux mixture, 50% trehalose-removal 800 times, 70% thiophanate-methyl wettable powder 800 times, dexamethasone 200-400 dilution and 75% Chlorothalonil wettable powder 600-800 times liquid, etc., sprayed (irrigated) once every 3-4 days, continuous 3-4 times, to control the occurrence of disease. In addition, seedlings weakened after flooding, and the germination of a large number of new shoots after pruning, more vulnerable to insect invasion, should strengthen observation and timely prevention and treatment.
In addition to the above measures, the post-disaster management of container seedlings should also pay attention to: timely transfer to areas with high ground and no water on the ground to prevent roots and other parts from being flooded for too long, and anaerobic respiration causes poisoning to seedlings. If there is media in the container, the media must be replenished and fully watered. Spray the water on the plants with a high-pressure sprayer or spray irrigation facility. At the same time, manually remove the plant residues such as leaves and branches from the original nursery. After the nursery is dried, disinfect it with a 70% thiophanate-methyl wettable powder 500 times. After disinfection, the container seedlings are returned to nursery to resume production.
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