Cucumber likes water, but irrigation needs to get the key technical points of cucumber irrigation in greenhouse.

Cucumber likes water, high water demand and poor drought tolerance, in order to ensure the temperature and normal growth and development of cucumber at low temperature. In order to obtain high yield, the correct irrigation techniques of cucumber in different growth stages should be accurately grasped.

Cucumber irrigation in greenhouse

The characteristics of root stubble were watered. For the overwintering cucumber whose planting period is at the end of October, in addition to watering enough planting water and timely ploughing to preserve soil moisture, there is no need to water when the first melon is seated. After watering the fruit, it can be covered with plastic film to keep warm and humid, and if necessary, pour small water under the film to avoid lowering the ground temperature. After the weather turns warm, increase the amount of water to meet the needs of cucumber growth. Cultivated in early spring, after fruit setting, it should be watered in time to meet the water demand of cucumber.

Watering is carried out according to the characteristics of different growth stages. In general, cucumber is watered while planting, and then slowly watered 3-5 days after planting, until when the young melon grows to 15~28cm, timely irrigation of melon water. After sitting on the cucumber, water it again. Results in the early stage, the planting is small, the leaf transpiration is small, the number of fruits is also small, and the ventilation rate is also small, generally can be irrigated for 7-10 days, (water quantity should be small). In the future, with the growth and development of cucumbers, the number of sitting melons increases, ventilation increases, transpiration increases, watering interval time should be shortened and water quantity should be increased to keep the soil dry and wet (mainly wet). Generally, one water can be irrigated for 5-7 days, and the harvest time should be kept moist to increase the weight of a single melon.

Watering time. Watering during the growth period should be in the morning on a sunny day, and should be ventilated and drained after watering, and should not be watered in the afternoon, evening or rainy days, otherwise it will cause high humidity in the shed and cause downy mildew, etc.; it is not suitable to be watered at noon, lest high-temperature watering affect the physiological function of cucumber roots; in the middle and later stages, the weather is hot, and the greenhouse can be ventilated day and night. It should be watered sooner or later to cool down.

Look at the growth and water. The plant is dark green, the leaves are glossy, green and flat, the heart leaves are extended, and the moisture is uniform and suitable. If the heart leaf wrinkles, the leaf color is dark green, the sunny day has the mild leaf sagging, for the lack of water performance, should replenish the water in time. If the heart leaf is overextended, the leaf is large and thin, and the leaf surface spits too much water, which is too much water, the water should be controlled to prevent it from growing.

Cucumber was irrigated in the later stage of growth. Cucumber production has been more than 100 days of growth period, when the cucumber plant tends to senescence, if you want to continue to have a better yield, good beginning and end, we must adhere to irrigation and fertilization should not be neglected management. At this time, the amount of irrigation should be controlled to achieve one water for seven days.