How to prevent shed eggplant falling flowers and fruit
Due to the high or low temperature of the shed in the greenhouse, the excessive planting density, insufficient light, improper management of fertilizer and water, etc., often cause the shed eggplant to fall and fall, which directly affects the income of the vegetable farmers. The vegetable farmers can take corresponding measures to prevent the shed eggplant from falling and falling. , First, strengthen the greenhouse temperature adjustment The daytime temperature in the shed is controlled at 25 °C-28 °C. If it exceeds 30 °C, it should be ventilated in time; the temperature control at night is 16 °C-17 °C. Second, rational close planting, timely adjustment of plants Reasonable close planting, and timely adjustment of the plant, in the process of plant growth to remove the side branches below the first branch, remove the old leaves, diseased leaves, timely pruning, forming a reasonable plant structure, while spraying the promotion of Huawang No. 3, Inhibit the main shoots and promote flower bud differentiation. Third, strengthen fertilizer management The watering management of eggplant in the early stage is mainly controlled, with less irrigation and more loose soil, especially when the water content of the eggplant is not too high, and spraying the fruit and fruit before the flowering to improve the pollen quality, increase the fruit setting rate and reduce the falling flower. The fruit drop occurred. When the eggplant grows to the size of the walnut, it applies topdressing and irrigation, and applies 10 kg of urea per acre. At the same time pay attention to the application of phosphorus and potassium fertilizer. Spraying a new high-fat film 800 times liquid to improve the fertilizer utilization rate, and adopting a sunny morning irrigation and a furrow irrigation method when watering. Fourth, pharmaceutical treatment 1. Using 25% compound 2,4-D dilution solution, 1-2 days before and after flowering, use a brush to smear flowers, smear the flower buds or immerse the flower buds in the diluted drug solution for 2-3 seconds. When the concentration is temperature dependent, the temperature is higher than 15 ℃, per kg of water was added to the original drug 8-10 ml liquid shake; when the temperature is below 15 ℃, per kg of water was added to the original 15 ml liquid shake. It is more effective to add gibberellin to the 2,4-D solution. 2. Using 2.5% Separation, on the second day after flowering, after 4 o'clock in the afternoon, spray the dilution on the flowers and young fruit with a hand-held small sprayer, not sprayed onto the parietal and young leaves of the plant. Spray once every 5-7 days. When the shed temperature is higher than 25 °C, add 1.25 kg of water per ml of the original liquid; when the shed temperature is lower than 25 ° C and higher than 15 ° C, add 0.85 kg of water per ml of the original liquid; when the shed temperature is lower than 15 ° C, Add 0.33 kg of water per ml of the original solution. 3. Using Fengling 1500-2500 times solution, spray buds, flowers and young fruits with hand-held small sprayer one day before flowering, one day of flowering and one day after flowering. When the shed temperature is lower than 15 °C, one capsule powder (0.4 g) is 0.6 kg to water; when the shed temperature is higher than 25 °C, one capsule powder (0.4 g) is 1 kg to water; when the shed temperature is 15 °C -25 °C When a capsule powder (0.4 g) is 0.8 kg on water. More pesticide knowledge , please pay attention to China Pesticide Network
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Chengde group is the first echelon in
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incorporated company, Yangzhou Chengde Steel Pipe Co., ltd, Yangzhou Chengde
Heavy Industry Co., ltd and Taizhou Chengde Steel Pipe Co., ltd.
Chengde have been working on the research.manufacture and sale of seamless pipe about 30 years, and the advantage of core competence is more prominent by integrate in technical.management and market with PCC.
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