The pesticide "920" is gibberellin, which not only promotes the growth of stems and leaves of plants, but also breaks the dormancy of buds and seeds, prevents flowers and fruits from falling off. Pesticide 920 is suitable for various crops such as grain, cotton, fruit trees and vegetables. Today Let us first understand the application of pesticide 920 on vegetables.
First, the method of use:
1 Spinach: Foliar spray was applied 1 to 2 weeks before harvest with a 10-20 mg/L "920" solution.
2 Celery: Spray half a month with 50-100 mg/L "920" solution.
3 Lettuce: When 10~15 leaves are sprayed, spray 10~25mg/L of "920" solution, combined with water and fertilizer management, the bamboo shoots can be quickly enlarged and tender. It can be harvested 10 days after spraying. Note that it is not suitable for spraying in the seedling stage, otherwise it is easy to make the bamboo shoots slender, and the effect of increasing yield in the late growth stage (about 25 leaves) is not obvious.
4 leeks: When the seedlings grow to 3 cm, spray the whole plant with 10-20 mg/L "920" solution for 1~2 times.
5 spinach: When the plant height is 10~15 cm, spray it with 10~20 mg/L "920" solution for 1~2 times, increase yield and the stems and leaves are crisp.
6 tomatoes: After flowering 70%, spray with 10-20 mg/L "920" solution to reduce flowering, increase fruit setting rate and mature early.
7 Coriander: Spray 1~2 times with 20~50 mg/L "920" solution 10~14 days before harvest.
8 Cucumber: When the young melon grows to 10 cm, spraying or soaking the young fruit with 20-30 mg/L of "920" solution can make the young fruit grow rapidly and harvest early.
Second, note:
1 "920" powder is difficult to dissolve in water, first dissolved with a small amount of alcohol (or 60 degrees shochu), and then diluted with water to the desired concentration.
2 can not be mixed with alkaline substances.
3 "920" aqueous solution is easy to fail, it is best to use it with it, it should not be used for a long time.
4 must be combined with the application of sufficient fertilizer water, otherwise it will lead to yellowing of the leaves, the plants are weak, and the expected results are not achieved.
5 The concentration should be accurate and the spray should be uniform. Otherwise, the stems and leaves and fruit should be deformed, which will affect the appearance of the product.
More pesticide knowledge, please pay attention to China Pesticide Network
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