Cucumber should be cultivated in the protected field at and after the slow seedling stage, especially in early spring. After planting, it should be cultivated in the slow seedling stage, because the water content in the slow seedling stage has been artificially satisfied. Another factor of slow seedling stage is the increase of temperature, especially ground temperature, which mainly depends on solar radiation heat. In order to make full use of this heat to improve the ground temperature, the artificial conditions are intermediate tillage, ploughing in the morning and deep ploughing in the afternoon, so that the heat can be stored in the soil and can be continuously carried out. Cucumber planted in the open field can generally slow down the survival of seedlings after two days of irrigation. Spring in the north is dry and windy, and intertillage can be started after 3- 14 days of irrigation. At this time, because the seedlings are small, you can deeply plough 8- 12cm, and the clods will be thinned and loosened with a hoe the next day. This kind of intertillage should be carefully operated to avoid the seedling pier from tilting.
After 8- 10 planting in the open field, cucumber began to take root and grow. At this time, deep intertillage should be carried out at the same time as irrigation. The depth is generally 5-6 cm, and the hoe will be lost again after 2-3 days. The soil can be fully turned over, soft and gentle, and the roots can grow rapidly to form strong and vigorous plants. After this intertillage, cucumber will enter the appropriate squatting stage.
After 7 days' cultivation, the leaves are deepened and the stems and vines are thick, which can be irrigated after being slightly dry. 3-4 days after irrigation, intertillage can be carried out when the ground is wet and dry in the morning. This intertillage, because melons and vines begin to grow vigorously, the roots are covered with seedbeds, and the intertillage should not be too deep. In addition, because of the warmer weather, a large number of weed seeds germinate, so it has the function of weeding, so this kind of intertillage should be more detailed and rigorous, and the depth is generally 3-4 cm. Generally, you can go home inspection 3-5 days after intertillage.
Although intertillage weeding has been done many times before the erection, the ridge behind Chajia is still full of weeds. Therefore, it is necessary to use a small hoe to plow and weed in the rows outside the frame, remove weeds from the back of the border and the aisle in time, clean up the grass after hoeing, and take out the ground to burn or accumulate fertilizer. Cucumber should be mowed in the late growth stage and summer, and can be pulled by hand. If the management is lax in the later period, the long grass will be barren, which will affect the later yield. Cucumber cultivated with plastic film mulching can't be cultivated in intertillage, but ridges and ditches without plastic film mulching should also be mowed frequently. In the late growth stage of cucumber, the weather is hot, at this time, the plastic film has been polluted by soil, and the light transmittance is very poor, which can reduce the ground temperature 1-2℃ compared with no plastic film. If there are not many weeds under the plastic film or the weeds are suffocated, the film can be left until the seedlings are pulled out. If there are many holes in the film and weeds grow, it is necessary to carry out careful shallow tillage, hoe the plastic film and weeds together, and take the waste plastic film and weeds out of the plot to prevent the plastic film from polluting the soil and becoming a public hazard.