In order to prevent tomatoes from falling and fruiting, there are two types of fruit setting hormones, 2,4-D and anti-deceasing hormone. Farmers should pay special attention to the following points in their use: 1. The concentration of 2,4-D used is generally 10~20 mg/kg, and the concentration of anti-dropping agent is generally 20~40 mg/kg. When the temperature is high, the lower limit of the concentration is adopted, and when the temperature is low, the concentration is high. limit. Before the use of the flower test should be carried out first, pick up a few normal flowers, if 4 to 5 days after the ovary began to enlarge, that the concentration is appropriate; if within 3 days the ovary began to enlarge, indicating that the concentration is too high; if a week No ovary enlargement was observed, indicating that the concentration was too low. 2. It is best when the flower is used when the flower is yellow when the flower is on top and not fully open or when the flower is in the form of a cheek. It is easy to cause burnout prematurely, but it doesn't work when the flowers are "Lantern-shaped" too late. In the sunny afternoon, it is better to have flowers in the morning, because the condensation of the plant surface will cause the concentration of the liquid to change and produce phytotoxicity. 3. Treat the area with a brush and apply lightly to the stalk or pedicel, or dip the entire inflorescence in the solution. Do not spill the solution on young leaves or growing points when handling. Turn into strip fern leaves, slow growth, especially 2,4-D, the most prone to phytotoxicity. 4. Fertilizer water supply Hormones are used to prevent flowering and promote fruit hypertrophy, but there is no fertilizer effect. Therefore, after using hormones, it is necessary to scientifically and reasonably top-dress and strengthen management. In addition, after the first fruit is used with fruit hormone, all other fruit should be used. Otherwise, the following fruits will absorb nutrients in a large amount, and the upper ear will not get the necessary nutrients.
Air-dried shallots have high medicinal value. It is most suitable for onions to be harvested in summer and autumn. The shallots can be taken today or ground into powder. The shallot is the fibrous root of the green onion, and the shallot is also a kind of traditional Chinese medicine. It has the effects of sweating and heat dissipation. It can be used to treat early colds, as well as bactericidal and anti-inflammatory, prevention of bronchitis and nasal congestion.
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