Cucumber flower topping to do so

Recently, the reporter saw in the cucumber shed of Zhang Kezhong, Dongxia Township, Qingzhou, Shandong Province, that over 1/3 of the sheds of the entire greenhouse had a phenomenon of flowering and the plants grew very weak. Many cucumbers have many "liar flowers" (ie, male flowers) on the upper part of the plant, and 3-4 melons grow on the top of the cucumber. The phenomenon of "headlessness" has appeared severely. Lao Zhang told reporters: "It's almost a week that I haven't gotten me."

The reporter made a judgment after investigating the analysis. The recent cucumber flower topping was caused by the following two reasons:

First of all, the temperature caused by continuous cloudy days is low, especially when the ground temperature is low, cucumber root development is poor, activities are weak, and photosynthetic products are few. In addition, there is a large temperature difference between day and night, and the temperature is low at night, and less nutrients are transported to the new parts (heads), and the vegetative growth of the plants is inhibited, and then flowering phenomenon occurs.

In response, the reporter suggested: We must do everything possible to raise the temperature inside the shed, and we must increase the temperature of the ground and promote the rooting of new roots. To ensure the normal temperature of cucumber growth, in particular, pay attention to the growth temperature of cucumber root, cucumber root growth temperature can not be too low, the most appropriate temperature is 25 °C -30 °C, the root of the appropriate temperature is 20 °C -25 °C, the minimum 10 °C. And timely and adequate watering, to avoid flooding and affecting the ground temperature, resulting in roots.

Secondly, the price is high in the early stage, and vegetable farmers often leave melons and promote melons, resulting in excessive nutrient consumption. As a result, plant organic nutrient production is insufficient, and endogenous growth is inhibited and flowering occurs. In addition, many vegetable farmers left in the past years to pick up more fruits and picked more fruits. The soil that was stepped back and forth when picking was already very strong, resulting in the roots being unable to produce new roots. Some roots lost their nutrient supply, resulting in the occurrence of physiological deficiency and further aggravating the flower. The phenomenon of topping.

In view of the above situation, the vegetable farmer can use the shovel to turn 5-7 centimeters, throw in a small amount of chemical fertilizers and trace elements, and then take this small water. After 7 days, many roots can be seen in the soil. After 15 days, the plants can be To restore normal growth, because this increases the nutritional area, soil permeability, the roots will grow, the ability to absorb water and fertilizer is naturally strengthened, it will solve the problem of flower topping. If very few plants appear to have a flower-topped phenomenon, immediate insulation measures should be taken and foliar fertilizer or potassium dihydrogen phosphate sprayed at the same time to promote its growth.

In addition, after taking the above-mentioned measures, we must promptly remove all the large and small parts of the plant that can be seen on the top of the plant, reduce the burden of the plant's nectar, and cooperate with the foliar spray of the cloud tree to lift the head and open the leaves.