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This year the center "Nanmadol" Typhoon No. 11 was around 29 August 04 25 points in the coast of Taitung County, Taiwan Province of wuxiang large landing, wind near the center have 12 (33 m / s landing ), the central minimum pressure is 975 hectopascals. At 05:00 on the 29th , the center of “Namadu†is still located in Taitung County, Taiwan Province, which is 22.4 degrees north latitude and 120.9 degrees east longitude . The maximum wind force near the center is still 12 ( 33 m / s), and the lowest pressure in the center is 975. Hundreds of hundred.
It is estimated that "Namadu" will move to the north-west direction at a speed of about 10 kilometers per hour , and the intensity will slowly weaken. It will enter the Taiwan Strait after passing through southern Taiwan around the evening of the 29th , and then approach the coastal area of ​​central and southern Fujian. It will land on the coast of Fujian Fuqing to Chun'an during the day on the 30th .
By the combined effect "Nanmadol" and the southwest monsoon, 29, 08, 08 and 30, the Bashi Channel, ocean east of Taiwan, the Taiwan Strait, the South China Sea and the northeastern coast of Fujian, Taiwan coast will have 7-9 winds "Nanmadol" after the wind near the center of the sea or the 10-12 level; the southern east China sea, south-central coast of Zhejiang, the east coast of Guangdong will have 6 to 8 gale; central and southern Zhejiang, Fujian most, Taiwan Most of the land in eastern Guangdong and other places will have heavy rains. Some parts of central and southern Taiwan have heavy rains and some areas have heavy rains.
 
The banana base was razed to the ground by the typhoon
The typhoon will not only directly destroy crops, but also change the small field environment in the landing area, leading to the spread of pests and diseases. The violent storms brought by the typhoon caused the crops to break roots and damage the leaves, and the disease resistance decreased drastically. Coupled with the flooding of crops, the surface is always in a high-humidity state, which is conducive to the spread of germs. Some migratory pests, such as rice planthoppers and rice leaf roller, will also be moved in large scale by means of typhoon airflow.
Typhoon rain can cause floods, and it can cause secondary disasters such as mudslides, landslides, landslides and soil erosion, causing agricultural lands to be flooded by siltstones; resulting in degraded soil quality and affecting crop growth. Some typhoons may even cause seawater inversion. Some of the flooded farmland will cause salt content in the soil due to long-term immersion in seawater, resulting in salinization of the land, which is not conducive to the growth of crops, and some farmland or even waste tillage.
Crop pre-disaster prevention measures
After the release of the typhoon news, prepare for places that may be hit by typhoons and floods, and take timely measures to prevent and mitigate disasters. Take the following measures for field crops:
Drain the ditches, open up the drainage ditch in the field, ensure the smooth discharge of irrigation and drainage; prepare for disaster relief agricultural materials; and mature the rice, corn, soybean, melon and other field crops, organize the harvest in time; repair and strengthen the production facilities such as greenhouses. Timely organization of field workers evacuation.
Typhoon post-disaster remedies
First, rice
Dredge the ditch, open the field drainage ditch to ensure smooth irrigation and drainage; rinse the blade mud, timely fertilize; timely spray medicine to prevent pests and diseases. After the typhoon, a large number of leaves were injured, and the source of flooded rice fields increased, which was very beneficial to rice diseases. Rice planthoppers and vertical leafhoppers also occurred frequently. According to the actual occurrence of pests and diseases, timely control of pesticides should be selected.
Second, vegetables
Drainage of clearing ditch; if the vegetable land is flooded and the vegetables are damaged, the affected vegetables that have listed value will be actively harvested, seized and listed, reduced losses; and the prevention and control of vegetable diseases.
Third, dry crops
Timely drainage and cultivating, adding fertilizers, especially quick-acting nitrogen fertilizers, improving soil nutrient status and making plants grow rapidly; lifting the crops after lodging, before planting new roots, and fertilizing the soil to promote new roots quickly Under the tie.
Fourth, mulberry fruit production
( 1 ) Ditch drainage and clean up sludge and debris. For flooded gardens, ditches and ditches, quickly remove water from the park, reduce the groundwater level, and accelerate the drying of the topsoil. The seawater is poured into the orchard. After the seawater is drained, it is rinsed with fresh water. The mud on the branches and leaves of the plants should be washed with water in time, and the debris hanging on the plants should be removed in time, and the plants with longer flooding time should be cut off.
( 2 ) As soon as the flood is overturned, the tree is fixed as soon as possible, and the support is fixed, and the exposed roots are well covered. For trees with severe root damage, shrub and cut leaves to reduce leaf evaporation. The branches have been broken and cut off in time.
( 3 ) Temporarily loose soil. After the water is flooded, the soil is compacted in the garden, which is easy to cause the root system to be deprived of oxygen. When the surface soil of the garden is basically dry, the soil is loosened in time.
( 4 ) Top dressing. After the tree is damaged by the roots, the ability to absorb water and fertilizer is weak. It is not advisable to apply fertilizer immediately. You can use 0.1-0.2% potassium dihydrogen phosphate, 0.3% urea, and foliar fertilizer for root dressing. Spray once every 5 days or so, even 2-3 times. After the tree has recovered, the soil will be rotted with human waste, manure, or urea to promote new roots.
( 5 ) Moderate trimming. The amount of pruning is determined according to the degree of damage. In addition to heavy shearing, the damaged heavy tree should also remove some or all of the fruits to reduce water evaporation and tree nutrient consumption of the twigs.
( 6 ) Do a good job in pest control. After the typhoon, it is easy to induce various pests and diseases. Citrus is prone to acute anthracnose, ulcer disease, black spot disease, and rust tick, red spider; pear is prone to black star disease, pear rust, ring rot; peach is prone to brown rot Disease, anthracnose; Yangmei is prone to brown spot disease, red clothing; sputum is prone to spot disease, gray spot disease, angular spot disease, leaf disease and yellow caterpillar; grapes are prone to black pox disease. Attention should be paid to the monitoring of the above-mentioned pests and diseases.
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