Use good growth regulators to timely control and increase production

Cultivate strong seedlings to prevent leggy vegetables from easily forming "high-fat seedlings" under adverse weather conditions, thereby reducing the quality of the seedlings. Chloride can be used for soil watering at a concentration of 250-500, which can inhibit cucumber and tomato leggy and grow seedlings. It can also use 1000-4000 concentration of paclobutrazol or 100-200 concentration to spray leaves at seedling stage. Prevent seedlings from growing in length.

To prevent flowering and fruit drop and increase fruit set rate. During the flowering period, the vegetables are exposed to high temperature and drought or continuous rain, resulting in a large number of flowering and falling fruit. They can be used in 2, 4 to D and tomato spirits. The concentration of tomato is 10 to 20 and eggplant is 30. ~ 40, pepper is 20 ~ 30, the prepared solution placed in a wine glass or rice bowl, so that flowers dip, or with a brush to smear flower stems can be.

To promote the growth of stems and leaves, increase the yield of vegetables before the non-flowering use of 5406 cytokinin 400 ~ 600 times, or 50 ~ 100 concentration of sodium bisulfite, can promote photosynthesis, help the accelerated growth of stems and leaves, promote flowering and enlargement precocious. Spraying celery, spinach, garland chrysanthemum, etc. with gibberellin 10 to 20 days before harvest can increase production by 10% to 30%.

Inhibition of germination and prolonged dormancy Potatoes treated with 0.01% naphthylacetate can inhibit germination during storage. On the 15th to 20th days before harvesting onions, garlic, etc., spraying with fresh green leaf can make it difficult to germinate. On the contrary, if the potato seed potato is diced and then immersed in a concentration of 0.5 to 1 gibberellin for 10 minutes, remove and dry it and put it on a moist sand bed to germinate. This can break the dormancy of the seed potato and promote germination.

Controlling differentiation of male and female flowers in cucurbits Treatment of seedlings with ethephon can change the sex of the melons and increase the length of female flowers. For example, spraying 2 to 4 true cucumber seedlings with 100-200 concentration of ethephon solution can increase the number of female flowers in 20 nodes; spraying a true leaf cucumber seedling in the leaf stage, and can continuously grow female flowers in the stem base and middle part. Male flowers do not occur. Therefore, ethephon plays a particularly important role in cucumber production.

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