The greenhouse cucumber should be watered at six o'clock, be careful not to ignore it.
Release time：2024-04-11 page views： Font size：big In the small
Pay attention to the growth and look at the growth of greenhouse cucumbers. Usually when greenhouse cucumbers are short of water, the leaves will wilt, the growth will weaken, and there will be more diseases. At this time, water should be replenished in time.
Pay attention to moisture and look at the soil moisture. If you water the greenhouse cucumber soil when it is not dry, it will not only be conducive to raising the ground temperature, but also easily lead to poor soil permeability, resulting in hypoxia of the root system, resulting in composting roots, and yellow leaves.
Pay attention to the weather. Be sure to watch the weather forecast before watering. Choose sunny day watering to ensure that there are 2 to 3 sunny days after watering to avoid encountering rainy weather after watering, resulting in increased humidity in the shed, lower ground temperature, and more diseases. In the current season, it is more necessary to pay attention. It is not suitable to water in the first two days after the sudden sunshine after even cloudy days. The temperature of the shed should be increased first, so that the greenhouse cucumber can basically return to normal before watering.
Pay attention to the ground temperature. The average daily ground temperature for greenhouse cucumber growth is about 22 ° C, and the ground temperature in the shed is mostly 15 ° C to 20 ° C. If there is excessive watering or the timing of watering is wrong, the ground temperature will drop rapidly, causing root injuries and endangering the growth of the above-ground part of the plant. Therefore, low-temperature watering is best carried out in the morning after opening the grass burrow.
Pay attention to covering the plastic film. Covering the plastic film can not only reduce the evaporation of ground water, maintain soil moisture, reduce the number of watering times, reduce air humidity, and reduce the occurrence of diseases. At the same time, Spring greenhouse cucumber watering, generally follow the principle of no shortage of no watering, rather dry than wet, keep the soil moisture content of greenhouse cucumber rhizosphere at about 60%, prevent too much over-frequent watering, and avoid flooding with water. Excessive watering is easy to reduce the temperature in the shed and increase the soil temperature, which is unfavorable to the growth of vegetables. To take small water frequently, or use a kettle to water plant by plant point.
pay attention to the management after watering, after watering, the first two days at noon temperature to about 40 ℃, stuffy shed for 1 hour, improve the temperature in the shed. Then increase the amount of ventilation to reduce the humidity in the shed. Then for greenhouse cucumbers prone to diseases, spray prevention to reduce the occurrence of pests and diseases. (Xinji)