1. Fertilizer management. After wintering the strawberry greenhouse, the indoor temperature is high and the water evaporates quickly. During this period, the plant grows vigorously and requires a large amount of water. When the new leaf grows to 3-4 leaves, the flower bud is exposed, and it should be mixed with the fertilizer. In general, 5 kg of urea and 20 kg of diammonium phosphate are applied.
2. Plant management. Remove the stolons from the plants in time, and follow them to remove them. During the growing season, the old yellow leaves, diseased leaves and weak side buds should be removed continuously, and concentrated nutrition provides results. Remove excess flower buds before flowering. Large fruit varieties retain 2 order flower buds, and medium and small fruit varieties retain 3 order flower buds.
3. Temperature and humidity regulation. Colonization to dormancy: The daytime temperature is controlled between 20 °C and 26 °C and the highest is 30 °C. Restore growth to flowering: daytime temperature control is 20 °C-28 °C, nighttime 8 °C-l0 °C, relative humidity 60%. Flowering period: 18 ° C-22 ° C during the day, not more than 25 ° C, otherwise affect pollen development. The indoor relative humidity is 40%. Result period: 16°C-22°C during the day, no more than 25°C, and no less than 8°C-l0°C at night.
4. Flowering assisted pollination. The ventilation in the greenhouse is small, and there are few insects, which is unfavorable for strawberry pollination and fertilization. Auxiliary pollination helps to increase the seed setting rate. Generally, two boxes of bees are placed in a greenhouse of 1 mu, or artificially pollinated with a brush.
5. Sleep management. Appropriately lick the bottom leaves, axillary buds, water before the winter, spray to prevent diseases.
6. Fertilizer management. Watering: Greenhouse strawberries resume growth until the soil is moistened before flowering. After the flowering and fruit setting, the water needs to be increased, and the water should be poured in time. The irrigation period should be properly controlled during fruit ripening. Top dressing: Spray 1-2 times with potassium dihydrogen phosphate and sprayed sage before the flowering, the interval is 10 days. After the fruit is placed, it is combined with watering, and 10 kg of urea and phosphate fertilizer are applied per mu.
7. Disease prevention and treatment.
Gray mold. In the flowering period to prevent gray mold, you can use 25% carbendazim 300 times solution, 64% evil cream manganese zinc (antivirus cockroach) 1000 times solution, spray once every 7 days, a total of 3 times. It can also be sprayed with 75% chlorothalonil, 70% thiophanate, 1500 times solution, and 65% sensitized zinc WP 500 times.
Bacterial bacterial wilt. In the early stage of the disease, 100-500106 agricultural streptomycin was sprayed, 7-10 days, and sprayed 3-4 times.
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