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Dołączył: 21 Lut 2011
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 Wysłany: Pon 17:42, 04 Kwi 2011 Temat postu: GHD glätteisen fqb pyg uiab awq |
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2004, wheat stripe rust epidemic Lincang characteristics and treatment strategies
Rapid growth of bacterial spores, constitute a prerequisite for a pandemic disease. 2, variety resistance level is not high. Wheat varieties planted in the city to Linmai, cloud wheat, Fung Mak based series, the first plantings 342,005 (Total 93) pilot demonstration to promote L | NcANGXJl more than 80%, in addition, there is a small part of the River Mak,[link widoczny dla zalogowanych], Mianyang system, cotton farmers II, Germany tons of wheat, as well as clinical guidelines, 8, 3, 4, white wheat, and some of the local wheat varieties. The production of varieties planted in the city for many years, and some plant life of more than 10 years, weakened resistance to wheat stripe rust. According to the 2002 monitoring of stripe rust races, the current Article 32, Hybrid46 8 groups still dominated a race, the race, resulting in Mianyang, Chuanmai, cloud wheat, Fung Mak, Jing Mai, De Mai, Yu-resistant wheat varieties and other production loss, in particular article 32 currently Mianyang, Chuanmai, clouds and wind, wheat and other produce varieties of wheat is highly toxic, and has continued to rise in 2001,[link widoczny dla zalogowanych], the frequency was 23.3%, increased to 47.5% in 2002, once the appropriate temperature and rainfall event, there is. The possibility of a pandemic. 3, temperate climate. In recent years, the prevalence of stripe rust on the Characteristic of the city, in early January to late March is the horizontal expansion and vertical expansion of disease in the critical period, the prevalence rate and disease index field increased rapidly, is the key to time against disease epidemics. At. December 2003-January 2004, the city's abundant rainfall, above normal rainfall compared with previous years, the temperature normal growth during the period of tillering of wheat jointing stage, heading for the early planted areas filling stage of wheat stripe rust infested a critical period, this period of suitable climate conditions are conducive to the invasion of bacteria and disease prevalence. Second, the integrated control measures against wheat stripe rust in the most fundamental and most cost-effective control measures is the use of resistant varieties of rational distribution and use of cultural practices, and population structure of adjusting sowing, applying fertilizer, and use of biological diversity, intercropping of other crops, to achieve the hazard mitigation of wheat stripe rust epidemic '. In 2004, according to wheat stripe rust epidemic occurred in the city to the characteristics of the specific control measures are: (a) to strengthen monitoring of network construction and improve comprehensive early warning of disease control. Forecasting work to strengthen and improve the prediction of disease control guidance, and working to combat disease initiative. Wheat planted in the period, the city county, district plant protection department under the monitoring results, and make an early forecast of wheat stripe rust disease trends, published briefing prevention, prevention recommendations put forward and actively control. (B) To strengthen the control of wheat stripe rust and prevention measures are implemented. At all levels and relevant departments, early awareness, early planning, early arrangements,[link widoczny dla zalogowanych], timely development of the actual local prevention plans, to strengthen prevention and control team building, technical reserves, Medical Device ready to fight for carrying out large-scale prevention initiative. (C) increase the resistance of crop varieties of structural adjustment and promotion efforts, species distribution and gradually rationalized. Wheat varieties for resistance to the loss of production, governments at all levels attach great importance to counties, the district has increased the variety of change efforts, increase efforts to adjust planting structure, and enhance the biodiversity of wheat varieties. In 2004 the city area of 57.7 acres of wheat planted, reduced area of nearly 10 acres, while expanding barley, beans, rape, vegetables, planting area, which added 1.49 million mu of cultivated barley, flax 11000 acres. Promote the city Linmai 6, 8, and other lead-based clinical quality,[link widoczny dla zalogowanych], resistant varieties of 15.5 million mu, and the wheat, beans and other crops a mixed, inter-planting demonstrations, use of biological diversity in types of disease control. (D) timely implementation of chemical control. Chemical control of wheat stripe rust is an important part of comprehensive management, in particular measures to seed treatment, seed treatment is the comprehensive management of stripe rust important measure, followed by the early onset of stripe rust in wheat to control disease center, focusing on applied field when the disease generally the development of drug control of disease, illness area to strengthen heading medication, disease control ear protection. Chemical control, the city mainly triazole Underground (triadimefon) and its complex agent-based. Yaojibanzhong, with 30 grams of 15% Triadimefon seed dressing of 100 kg of wheat seed is broadcast is mixed. Wheat rust disease center field and the early stages of disease control spraying time, the pharmaceutical rust clear powder with 50% of the 100-150 g / acre,[link widoczny dla zalogowanych], dilute water spray, or 15% Triadimefon 100 g / acre, dilute water spray.
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