Fruit cucumber temperature and light control points

Cucumber is a warm vegetable, the temperature requirements are relatively loose, the common temperature range is 15 ~ 32 ° C, the ultimate tolerance low temperature is 5 ° C (the tolerance temperature of non-thorn cucumber is 8 ° C), the high temperature tolerance is 40 ° C . Temperature management is an important factor in the high yield of vegetables. The regulation of environmental conditions in the management process is an important factor in determining whether high yield is high. Therefore, in the management process, temperature management should be strengthened.

In the management process of greenhouse cucumber and non-stinging cucumber, attention should be paid to temperature regulation, which is suitable and not acceptable. For example, in the "smelting" stage of the cultivation process of winter and spring sorghum (a large carp), the temperature control is appropriate, and the operating temperature is not too low; if the "smelting of the seedlings" is too low, the temperature application is too low and the low temperature obstacles caused by low temperature are likely to occur. Phenomenon (leaf yellowing or leaf "fish scale") affects overall plant growth and yield. If the summer cultivation, the management measures are insufficient, it is easy to cause the temperature of the greenhouse to be too high, and the plant grows weak or premature aging, and the disease is serious.

These prove the abnormal phenomenon of plant growth caused by temperature discomfort, so in the management process, strict attention should be paid to and regulation should be strengthened. In the management process, it is recommended to implement “fixed temperature management”. According to the actual situation of the individual shed, reasonably grasp the temperature, create favorable conditions for plant growth, and lay a good foundation for high production.

Daily management should promptly wipe the shed film dirt, keep the shed film good light transmission and form a good light receiving condition of the shed. When the winter encounters cloudy weather or rain and snow, the curtains or insulation will be uncovered. It should be gradually and slowly, to avoid the sudden appearance of light after a long cloudy and clear, to prevent physiological loss of water and wilting.

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