With the development of protected areas, plant growth regulators play an increasingly prominent role in regulating growth, promoting development, and coordinating protected areas. However, plant growth regulators should be used strictly, and improper use can easily cause loss of vegetable production in protected areas.
The concentration of preparation and use should be accurate. The plant length is adjusted to a small concentration and the requirements are very precise. If the concentration is too high, the crop growth will be delayed, deformed, fallen, and the root growth will stop. If such a phenomenon occurs, spray with a 1:125 white sugar solution for 3 times. The concentration is small and does not function as it should.
Spraying should be meticulous, master the treatment site and treatment period. When using growth regulator, mark it to prevent repeated use. For example, when preparing 2,4-D, mark red and blue ink or soil and prevent spraying. Young shoots and leaves, otherwise it is easy to cause deformity. The treatment period should be strictly controlled. For example, the treatment of cucumber seedlings by gibberellin promotes male flowers, and the young melons of cucumbers are preserved and preserved, and preserve growth. Ethephon promotes male flowers at the seedling stage. 2,4-D treatment of tomato, the best effect on the application when the flower is just open, invalid for the treatment of unopened green flower buds and flowers with dark yellow flowers. The treatment site is mastered according to different crop growth regulators and the purpose of use, such as 2,4-D treatment of solanaceous fruit, the flower handle is applied, and the anti-falling can spray the inflorescence. When 2,4-D is used to treat young cucumber fruit, apply the melon tire to prevent it from being applied to the melon.
When the growth regulator is used according to the environment and conditions at the time of treatment, a high concentration is generally used at a low temperature and a high concentration is used at a high temperature. Generally used on sunny days, the plants in the cloudy days are slow to run, which may cause phytotoxicity. If the tomato is treated with anti-fallin, 50 ml/kg for 20 degrees or less, 25 ml/kg for 20-30 degrees, and 10 ml/kg for 30 degrees or more. Pay attention to the temperature change after treatment. If the temperature rises sharply after treatment, it is prone to abnormalities such as deformity. When the tomato is ripened after harvesting, the temperature must be 20-25 degrees. Strengthening the management of fertilizer and water After the treatment of melons and vegetables with growth regulators, a large number of young melons, young fruits or accelerated plant growth are often formed, and the management of fertilizer and water should be kept up to avoid the emergence of the organs, so that the formed organs stop growing and at the same time Go to some deformed fruits.
In short, the growth regulator should be strictly controlled in terms of concentration, period of use, treatment site and treatment method, and combined with environmental conditions and management measures after treatment. When using, it can be used in a small area or in a single plant. After observation, it can be used in a large area.
The concentration of preparation and use should be accurate. The plant length is adjusted to a small concentration and the requirements are very precise. If the concentration is too high, the crop growth will be delayed, deformed, fallen, and the root growth will stop. If such a phenomenon occurs, spray with a 1:125 white sugar solution for 3 times. The concentration is small and does not function as it should.
Spraying should be meticulous, master the treatment site and treatment period. When using growth regulator, mark it to prevent repeated use. For example, when preparing 2,4-D, mark red and blue ink or soil and prevent spraying. Young shoots and leaves, otherwise it is easy to cause deformity. The treatment period should be strictly controlled. For example, the treatment of cucumber seedlings by gibberellin promotes male flowers, and the young melons of cucumbers are preserved and preserved, and preserve growth. Ethephon promotes male flowers at the seedling stage. 2,4-D treatment of tomato, the best effect on the application when the flower is just open, invalid for the treatment of unopened green flower buds and flowers with dark yellow flowers. The treatment site is mastered according to different crop growth regulators and the purpose of use, such as 2,4-D treatment of solanaceous fruit, the flower handle is applied, and the anti-falling can spray the inflorescence. When 2,4-D is used to treat young cucumber fruit, apply the melon tire to prevent it from being applied to the melon.
When the growth regulator is used according to the environment and conditions at the time of treatment, a high concentration is generally used at a low temperature and a high concentration is used at a high temperature. Generally used on sunny days, the plants in the cloudy days are slow to run, which may cause phytotoxicity. If the tomato is treated with anti-fallin, 50 ml/kg for 20 degrees or less, 25 ml/kg for 20-30 degrees, and 10 ml/kg for 30 degrees or more. Pay attention to the temperature change after treatment. If the temperature rises sharply after treatment, it is prone to abnormalities such as deformity. When the tomato is ripened after harvesting, the temperature must be 20-25 degrees. Strengthening the management of fertilizer and water After the treatment of melons and vegetables with growth regulators, a large number of young melons, young fruits or accelerated plant growth are often formed, and the management of fertilizer and water should be kept up to avoid the emergence of the organs, so that the formed organs stop growing and at the same time Go to some deformed fruits.
In short, the growth regulator should be strictly controlled in terms of concentration, period of use, treatment site and treatment method, and combined with environmental conditions and management measures after treatment. When using, it can be used in a small area or in a single plant. After observation, it can be used in a large area.
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