Prevention of Solanaceous Vegetable Diseases by Washing Root Cultivation

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The rooting cultivation of bell pepper is rooting cultivation, which is a kind of cultivation method that is based on the shallowest possible planting and flushes the root of the pepper which is higher than the ground when the sweet pepper is set, so that the unearthed part of the root is exposed. First, the practice of root-washing cultivation Yabebe-cho, Kumamoto Prefecture is located on the outskirts of Mount Aso in the south, where is the main origin of sweet pepper, cultivation area as much as 25hm2, summer and autumn pepper production accounted for the first Kumamoto. As the bell pepper cultivation season coincides with the breeding season of pathogenic bacteria, the disease has been heavy. Especially in the rainy season, white peony disease and epidemics have come one after another. After Meiyu has passed, the bacterial wilt has caused dead seedlings, which seriously disturbs the vegetable farmers. Under dry cultivation conditions, it is often difficult to keep a third of the seedlings. The root-knife cultivation of Yabe-cho sweet peppers was first adopted by Mr. Kenichi Yoshii, president of the sweet pepper association. Mr. Yoshiyoshi has 7,000 square meters of sweet peppers in greenhouses. He began to conduct research on agriculture in 1988. As Mr. Nguyen's root-cleaning techniques have played a good role in preventing disease, this technology was quickly promoted in Yabebe-cho. In the past two years, about 80% of the area has been promoted. Diseases such as diseases and diseases have been greatly reduced. Second, the principle of prevention and treatment of root culture Rootsong Pine and "root of life" root root cultivation, inspired by rooting loose. Kanazawa's Kenrokuen Garden has many pine trees. Most of them are thin and thin. Even one of the many thin pine trees is very robust. Observe carefully that the roots of this branch of pine are mostly exposed on the ground, that is, there are so-called dew roots, and then expand the field of view. All pines with bare roots are very strong. The reason why the bare roots of pine trees are robust is because they are exposed to rain and water, and the roots are exposed to direct sunlight. 2. Most of the pathogens that invade the white leeches and pathogens such as deep-rooted plants and pathogens have remained in the dry land. In the rainy season, these pathogens invade the plants through the rhizosphere environment, and the stems and the ground are part of the disease invasion. The stems of Solanaceous vegetables are in the thick and thick stage, and the junction between the roots and the stems is more likely to crack the epidermis, and the disease invades from here. In the rainy season, when the temperature reached 25~30°C and the continuous rainy conditions, pathogenic bacteria rapidly proliferated and invaded, and it was difficult to obtain good control effects even when spraying pesticides. There are widespread planting problems in sweet peppers, eggplants, and tomatoes. In the case of deep-seedling, split wounds are easy to form, which is a time when the pathogens proliferate, and diseases easily occur. 3. Root culture and disease-resistant root culture are one of the effective ways to prevent stem base cracks and pathogens from meeting each other. The role of root washing is not only to prevent diseases. After the soil in the rhizosphere is washed away, not only fists are formed at the base of stems. The roots under the fist-like roots extend like a root bamboo chop to all sides and deepen and expand deep underground, and the thick roots branch out more fine roots. Therefore, the rhizosphere can branch out a large number of root systems, only the plants are not easy to die, and the yield is also increased significantly. Third, the roots of the technique of root cleaning techniques The main points of the root cleaning techniques of the Yabe-machi Sweet Pepper Association are: (1) To plant as shallowly as possible. Nowadays, Japan's sweet pepper production has generally promoted shallow-planting techniques. Don't plant deep when transplanting, and expose 1/3 of the carcass to the ground. The purpose of shallow planting is to avoid the rainy season and prevent the invasion of pathogenic bacteria. (2) After 45-50 days after colonization, roots were washed with a mixture of a bactericide and a hair rooting agent, and about 1 L of the mixture was sprayed on each of the plants. The roots of the plants were disease-prevented and a rough and robust root system was cultivated. When the root system is exposed by the flushing method, in order to prevent the disease from invading through the fine roots of the breaking, the fungicide and the hair roots are added to the water for “100,000 years”, which can play a bactericidal effect on the soil surrounding the plant. After washing roots in this way, the washed white roots became green in the first week, and the thick blue roots formed in the deep summer. Since there is no soil in the rhizosphere, the disease is prevented from invading the plants from the rhizosphere and the yield can be increased because the roots are thick and robust. The sweet pepper grown by Mr. Hirose has expanded its roots and stem bases, and the fine roots below are well developed. It is these roots that make peppers obtain high yields. Washing the roots can directly obtain sunlight in this area, and the root system can give priority to the balance. Even if there are many pathogenic bacteria around the root, it is difficult to parasitic attachment. Mr. Hirose’s root-washing characteristics are: the time is advanced and the number of times is increased, and the planting period is March 15-20. When transplanting, roots should be lifted about 1.5cm from the surface, and the seedlings should be gently washed with a 1000-fold germicide and liquid fertilizer solution. Because the roots are tender at this time, it is not appropriate to contact the solution with the root. When planting, it should also be noted that no soil should be left on the periphery of the planting hole. At this time, in order to prevent the ground temperature from rising, the hot water vapor generated between these soils and the saggers comes into contact with the seedlings. Mr. Hirose’s time for the root washing of peppers is about the harvest time of the fruit in the second quarter, that is, about 40 days after planting, and the specific conditions should be based on temperature and fertility. The water used to wash the roots is generally used with a bactericide 1000 times solution plus 40 times the hair rooting agent. It starts in the middle and late April and is washed once a week for a total of 3 rinses. The amount of water should gradually increase with the growth of sweet peppers. The first time about 350-400 ml of water per plant and about 600-700 ml for the third time. Mr. Hirose's roots began earlier and had less water than Mr. Kou's roots. Mr. Guang Yu began to wash roots before the large-scale reproduction of pathogens, which can reduce the wounds and roots, and at the same time achieve the purpose of root washing, and increase the number of root washing. Mr. Hirose has been using root-washing technology for more than 10 years. In the past, the headache-causing blight has not yet occurred. It is unclear how much this relationship has to do with the use of root washing techniques. Blight and bacterial wilt are also unclear. happened before. Not only that, but roots that are as thick as chopsticks are rooted in the vitality of the plants. For this reason, the production of sweet pepper by Mr. Hirose has been one of the best in the country. Mr. Shiyoshi, who promotes the technique of washing roots, believes that the root-cleaning technique not only has an effect on sweet peppers, but also has the same effect on the summer and autumn cultivation of tomatoes, eggplants, and other solanaceous plants. The root should be grasped, under the premise of shallow planting, after 40d, the plants can only be washed after the roots are solid. The appropriate initial period for the tomato to wash the roots began when the third flowered and the first fruit was ping-pong. When the roots are washed, fungicides and hair rooting agents should be used in combination. Only in this way can the roots directly reach the sun, thereby suppressing the diseases and increasing the yield.

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