First, pay attention to the weather
Picking leaves and falling vines will cause more wounds. Picking leaves and falling vines may cause more harm to the cucumber pods on rainy days. First, there is less ventilation in cloudy and rainy days, and the air in the shed room is high in humidity. The wounds resulting from picking leaves and falling vines will flow out a lot of juice, causing the loss of plant nutrients. The rainy days are weak and the nutritional reserves of the plants are insufficient. If the wounds cause more nutrient loss, it will affect the normal growth of the cucumbers and weaken the disease resistance of the plants. The second is the sap from the wound, which provides an opportunity for the survival and infestation of pathogenic bacteria, which can aggravate the occurrence of diseases. Therefore, it is best to choose sunny mornings for picking cucumbers and dropping them.
Second, before picking leaves
In vegetable growing areas, some vegetable farmers do not pick old leaves when they fall, which is mainly troublesome. However, the fallen leaves spread over the ground, and the leaves gathered, and they did not see the sunlight, and they had lost the necessity of existence. Moreover, if the leaves are not removed in time, it will result in poor air circulation in the lower part, high humidity, coupled with more cloudy days, increased humidity, and poor disease resistance. The pathogenic bacteria can easily infect the old leaves. Therefore, vegetable growers should pick the leaves before they fall.
Third, pick leaves to be left handle
Because the cucumber petiole hollow, crisp, in the removal of old leaves, if the petiole removed together, it is easy to cause vine vine injury, if the humidity encountered even cloudy days, it is easy to make the stem around the wound tissue necrosis, affect The cucumber grows normally. If the petiole is left when the leaves are picked, the petiole will gradually yellow, and the junction with the stem will naturally fall off from the layer. Even if the wound is infested around, it can be found early and medication can be taken in time to prevent damage to the stem.
Fourth, pay attention to spraying pesticides after picking leaves
After picking the leaves, a lot of nutrient solution flows out from the wounds of the cucumber plants, and it is easy to infect bacterial diseases from here. Before and after the removal of the leaves, 72% of streptomycin sulfate and 3000 times of the mixture are added, and 47% of Garnett 600 times is added to prevent bacteria. Sexual diseases occur.
Five, no thorn cucumber picking leaves should be appropriate
The thornless cucumber picking leaves or not depends on the season. In winter, the temperature is low, the ground temperature is low, and the light is weak. In the shed, the ground temperature must be increased and the light should be increased. At this time, the cucumbers in the shed continue to fall, and the vines spread on the ground will grow longer and longer, and the leaves will also increase. The leaves cover the ground will inevitably affect the ground to receive light, the ground temperature is low, and the root system It doesn't help growing. Need to remove a part of the leaves, increase the visibility of the ground, see more light on the ground, the ground temperature will naturally rise, the cucumber will also increase the capillary roots due to elevated ground temperature, the roots will be more and more robust. However, if the leaves are picked up after the ground temperature has risen, the roots will be damaged due to the strong light received on the ground, that is, people often say that "the roots are sun damaged and the roots are steamed." Leaves rely on long roots, yellow leaves will appear when the roots are injured, leading to premature aging, affecting production.
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