To prevent cucumbers from growing in greenhouses, vegetable farmers can take the following technical measures: Co.,
1. Reasonable close planting. Cucumbers in greenhouses should be properly planted and the management of fertilizer and water should be strengthened. The planting density should be determined according to the variety, soil strength and season. Generally, 4000 to 4500 plants are planted per acre.
2. Watering at the right time. Watering should be controlled by two heads, that is, before the meloning period, the soil temperature should be increased by the middle tillage, so that the wetness can be seen; the water should be poured every 7 to 10 days during the melon period, and the water should be picked every time. Before proceeding, to control the madness; after the top melon is finished, control the watering and promote the new root. When the melon is inflated, it should be watered in time.
3. Reasonable topdressing. Under the premise of ensuring the supply of soil nitrogen, appropriate phosphorus and potassium fertilizers should be applied. Topdressing is in liquid form and is fertilized with water. In general, before the expansion of the root melon, 15-20 kg of urea, 10 kg of potassium sulfate, and 15 kg of diammonium phosphate are used. In the middle and late stages, the manure is diluted with water for 2 to 3 times, each time about 1000 kg per mu.
4. Control the temperature. The suitable temperature for cucumber growth and development is 25 ° C ~ 30 ° C, more than 30 ° C plant growth is accelerated, easy to grow wild. Therefore, in the hot season, it is necessary to set up a shade net to cool down.
5. Control humidity. The suitable air humidity for cucumber growth and development is 60% to 80%. When the humidity in the shed exceeds 85%, it should be ventilated immediately.
6. Look at the tied vines. When the vine grows to about 30 cm, it begins to tie the vine. At the beginning of the erect abduction, when the vine grows vigorously, it can be bent and abducted left and right. The degree of curvature and the tightness depend on the growth of the squash. If there is less time, the curvature will be large and it will be tight.
7. Hormone preserved melon. After cucumber cucumbers, the vegetative growth of the plants is controlled. Therefore, try to make the first batch of flowers more sitting. If the first batch of flowers is less than melon, it will easily lead to melon. In order to make cucumbers more sitting, you can use Baoguoling flowers or spray flowers, which can not only mention the morning market, increase the early yield, but also effectively prevent the melons from growing.
8. Look at the melon. When the root melon is harvested later, the growth of the melon will be inhibited. The mad long melon should be picked up properly at night to play the role of falling mites and relieve the madness. When the growth of melon is weak, it is necessary to take the roots early to prevent falling, and take measures to promote growth as soon as possible.
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