Rice bastard disease, commonly known as male fleas, is a fungal disease. Germ produces gibberellin, which can cause adventitious roots and adventitious roots in rice plants. The disease can occur from the seedling stage to the heading stage, and the three significant peaks of the disease are concentrated performance during the field stage, Honda tilling jointing stage, booting to heading stage. I. Symptoms: Seed borne bacteria are the main cause of the onset of seedling stage. The diseased plantlets are thin and weak, which is 1/3 higher than that of healthy plants. The leaves and sheaths are narrow and long. The whole plant is yellow-green, and the roots are stunted, and the root hairs are scarce. The diseased seedling died before and after transplanting. In the adult plant stage, the diseased plant usually appears about one month after transplanting, and the symptoms are similar to the seedling stage. The diseased plants had little or no tillering, and the internodes significantly elongated. The joints often curved to expose the sheaths. The lower part of the stems had many inverted adventitious roots. After the stalk gradually decayed; serious disease and more dead in the booting stage, mild diseased plants often early earing, short spikes, grain is not true; when the weather is humid, covered with pale red and white moldy material on the surface of the dead plants. Second, the onset of conditions 1. Seed carrier is the initial infestation of the disease. Rice bakanae is a thermophilic pathogen. It does not show symptoms when the soil temperature is lower than 20°C or higher than 40°C. The optimal temperature for the growth and development of pathogens is 25-35°C, and the optimum temperature for invading the host is 35°C. Dry aphids are more severe than water aphids; nitrogen fertilizers are used to stimulate the development of disease; application of unrefined organic fertilizers is heavy. 2, weak seedlings; nursery bed irrigation is not timely, lack of water due to drought, cracking occurs, easy to make the seedling roots injured, or when the seedlings due to lack of water on the nursery bed so that the roots were injured, such seedlings transplanted after the onset of weight. 3. Seed seeds that are not thoroughly soaked with pesticides are more severe than those that are soaked. Third, the prevention and treatment methods and remedial measures after the occurrence of this disease is mainly transmitted by the seed circulation disease, therefore, the first choice of disease-free seeds, followed by strict seed disinfection is the key to prevention and control. 1, strengthen the cultivation and management. The germination should not be too long. To avoid damage to the roots, pull out the roots as far as possible. Do not insert the supper, do not insert the supper, do not insert deep swill, do not insert deep swill, do not insert the hot sun, do not insert cold water immersed scorpion. 2. Remove diseased plant debris. Timely removal of diseased strains and destruction, disease straw harvested as fuel or composted. 3, to prevent the roots and seeds of rice seedlings is the key to reduce the invasion of bacteria. 4, seed treatment. Seed disinfection treatment is an effective measure to prevent and treat this disease. Seed soaking with 1% lime water clarifier, soaked for 3 days at 15-20°C, immersed for 2 days at 25°C, the water layer is 10-15cm higher than seed, avoid direct light, or soaked with 25% Prochloraz EC 3000 times solution 72 hours; or soaking for 72 hours with 25% Shibaoke EC 3000 times; 5. When found on a seedbed, it can be sprayed by hand after spraying 95% Green Hyun No. 1 (badaming) 4000 times fine product. Or 40% prochloraz 3000 times solution, and after the seedlings are lifted, use one of the above methods to remove roots and transplant them 30 minutes after stacking, which can effectively relieve the incidence of field crops. 6. Strengthen field water management. In the tillering and booting stages, the incidence of water in the plots was lighter, and inter-dry wetlands were heavier.
FRUIT & VEGETABLE INGREDIENTS
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The following are our main recommended fruit and vegetable powder. Our company is mainly engaged in the production of natural plant extract raw materials, and is a famous supplier of plant extract raw materials in China.
Fruit and vegetable powder is made by processing fresh fruits and vegetables through more than 10 processes, including pretreatment, quick freezing, vacuum drying, ultraviolet sterilization, packaging and storage, through freeze-drying technology and equipment with international advanced level.
The following are our main recommended fruit and vegetable powder.
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