Strictly prevent and control seven steps of ginger ginger rickets
Jiang Yan is also known as ginger rot and ginger soft rot. It is a bacterial disease caused by Pseudomonas.
Since there is currently no effective bactericide for Jiangyan, we must focus on comprehensive agricultural prevention and control measures. Focusing on cutting off transmission routes and controlling the spread of diseases, we must strictly control the following seven prevention and control links:
1. Land selection and rotation:
The pathogens of ginger borer can survive in the soil for 14 months to 6 years, and are the primary sources of infection. Therefore, the adoption of variety rotation and rotation between paddy and dry crops (one year of ginger and two years of rice) cannot solve the fundamental problem of disease prevention. Must choose a higher ground, good drainage, the former crops do not grow ginger, tomatoes, peppers, eggplants, potatoes, peanuts and other crops in the same section of the crop rotation.
2, select ginger species:
Sick ginger can cause the ginger root disease to spread in the underground roots. Therefore, it is necessary to strictly select and introduce seeds. After exposure, the sun will be dried for 2 days, and the ginger will be removed from the discolored, softened, water-stained and easily peeled skin. The disease-free, insect-free, fat and neat, bright color and buds are selected. Ginger is a good ginger.
3, ginger and soil disinfection:
(1) Selection of Copper Thiophene (Lactococcus) Soaking: 500 times 3 hours disinfection and promotion of germination 1 to 2, but do not take too long, more than 6 hours, germination is too much, the impact of sprouting seedlings are not strong . Or 1:1: 150 times Bordeaux mixture soaked for 15-30min disinfection.
The wounds of the ginger block were then sterilized with plant ash or 300 times T. bronchodendron (Loncobacter), and the bacteria in the field soil were controlled to invade from the ginger seed wound.
(2) Daejeon Soil Disinfection: 7 days before sowing, the ridge hole was opened, sprayed with formaldehyde and covered with a mulching film for 4 days and re-opened for 3 days after sowing; or spraying 20% â€‹â€‹thiazolybdate (Loncobacter) on a good ridge. 500 times.
4, cultivation management:
One must use sufficient farmyard manure, avoid using ginger stems, leaves, rods and soil with bacteria to make soil miscellaneous fertilizer;
Second, we must level the fields, deepen the narrow and narrow compartments, open up the perimeter and the inter-row drainage ditch to prevent rain and ginger from collecting water.
Third, we must do a good job of isolation of ginger fields, avoid string arranging, string irrigating, and forbid the flow of ginger fields into disease-free fields;
Fourth, to reuse basal fertilizer, increase the application of phosphorus, potash fertilizer, and string grass ash, avoid partial application of nitrogen fertilizer;
Fifthly, we must diligently check on Jiang Tian and find that the central diseased plant will timely dig out the diseased plants and the surrounding plants, bring them to the fields to be destroyed, and spray 5% bleaching powder solution or fresh lime powder on the sick holes and surrounding areas to do a good job in rural cleaning. To prevent the spread of diseases;
Sixth, to strengthen the prevention, the whole growth period can be used 20% Thiobacillus copper (Loncobacter) or Bordeaux liquid spray 3 to 4 times.
5, unified defense rule:
We must pay equal attention to mass prevention and prevention, major prevention and control, general prevention and control, agricultural control and drug control, chemical control and biological control, and unify the time, unify drugs, unify technology, and uniformly apply drugs.
When the ginger seedlings grow at the time of needles, because the ginger buds are tender, when they are unearthed, they are easily touched by stones, glass, iron and other hard objects in the soil, and the wounds eaten by the underground pests are infected by the bacteria in the soil. Use 20% of copper bacteria 500 to 750 times to irrigate roots, pouring 100 to 150 ml per hole (the specific amount depends on soil moisture).
Until the ginger seedling grows to 3 to 5 leaves, the ginger borer and other insect pests occur in the middle and late June, and they move to the ginger field. The leaves of the ginger are badly eaten. The bacteria enters the break and encounters rain. Dew, into the ginger heart tube rot, has been destroyed by each branch, and soon to wear ginger root stem block decay, the value of the early July to mid-Ginger's disease apparently manifested, the leaves retreat, yellow, and even leaf wilting.
Therefore, when ginger grows from 3 to 5 leaves, the focus is comprehensive prevention and control. The bactericidal agents are sprayed with 20% Thiobacillus (Loncobacter) for 500 times, each treatment course is 3 to 4 times, and the interval is 7 to 10 times.
Can also use copper hydroxide, agricultural streptomycin sulfate exchange use. If there are other pests, comprehensive prevention and control is based on the actual situation.
6, physical control:
Under conditional conditions, in the first six months of the year, ginger nets were covered in Yangyang.
(1) Control the evaporation of water in the ground, reduce the number of re-irrigation in ginger field and reduce the humidity;
(2) Control of adult migration of ginger aphids into spawning and hatching of ginger fields. Reduce the loss of ginger leaf heart and reduce the occurrence of ginger borer.
7. If you encounter natural weather effects:
After several consecutive days of rain, waterfalls or waterfalls, and typhoon and flooding, they must be sprayed 2 to 3 times with 20% Thiobacillus (Loncobacter) 500-fold solution for 7 to 10 days.
According to the demonstration of Vegetable Development Bureau of Tsui Ping District, Bin City, Sichuan Province
Guangxi Liuzhou Xinman Park Agricultural Technology Extension Center
Organized by the Technical Department of Zhejiang Longwan Chemical Co., Ltd.
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