Measures to prevent eggplant from falling flowers and fruits in greenhouse

Because the greenhouse temperature is too high or too low during the flowering and fruit setting period in the greenhouse, the planting density is too high, the light is insufficient, and the fertilizer and water management is improper, which often results in serious flower and fruit drop of eggplant in greenhouse, which directly affects the income of vegetable farmers. corresponding measures can be taken to prevent eggplant from falling in greenhouse. 1. Strengthen the temperature regulation of greenhouse. The temperature should be controlled at 25 ℃ and 28 ℃ during the day, and should be ventilated in time when it exceeds 30 ℃, and 16-17 ℃ at night. 2. Reasonable close planting and timely adjustment of plants. In the process of plant growth, the lateral branches below the first branch should be removed, the old leaves and diseased leaves should be removed, and the branches should be pruned and branched in time to form a reasonable plant structure. at the same time, Huawang No. 3 should be sprayed to inhibit the growth of main shoots and promote flower bud differentiation. 3. Strengthen the management of fertilizer and water. The early watering management of eggplant is mainly controlled, with less irrigation and more loosening soil, especially during the flowering period, the soil moisture should not be too high, and spraying vegetable fruit Zhuangtieling before flowering can improve the pollen quality, enhance the cyclic fruit setting rate, and reduce the occurrence of falling flowers and fruit. so that eggplant continuous stable yield and high quality. When the door eggplant grows to the size of walnut, topdressing and irrigation are applied, and 10 kg of urea is applied per mu. At the same time, pay attention to the combined application of phosphorus and potassium fertilizer. The 800-fold solution of new high-fat film was sprayed to improve the utilization rate of effective components of fertilizer, and the methods of sunny morning irrigation and ditch irrigation were adopted during irrigation. 4. prevention and control of diseases and insect pests. Timely prevention and control should be taken at the initial stage of the occurrence of diseases and insect pests. According to the requirements of plant protection, targeted agents such as 75% chlorothalonil and 2000 times EC can be sprayed to control the disease. At the same time, the new high lipid membrane solution can be sprayed to improve the utilization rate of effective ingredients and consolidate the control effect.