In the process of cucumber seedlings, we often encounter the problem that cucumbers do not emerge for a long time after sowing, or the seedlings are uneven, and the seedlings vary in size. The prevention measures are as follows: 1. Don't blindly rush early: You must wait until the ground temperature stabilizes above 10 ℃ before planting. When the soil temperature is too low, heating measures should be used to increase the seedbed soil temperature. 2. The proportion of nutrient soil should be appropriate: a completely decomposed organic fertilizer must be used, and the proportion of fertilizer should be appropriate. Do not use too much chemical fertilizer to avoid burning seedlings. 3. Irrigation should be even: Too much water in the soil, long-term soaking of seeds in low temperature water will cause the seeds to rot. Fourth, the bed surface is required to be flat: the thickness of the covering soil should be maintained at about 1 cm, and the nutrient soil should be loose and fine. If the seedling bed surface is uneven, the cover soil thickness is uneven, even the seeds are exposed on the open surface, the cover soil is too thick, etc., will lead to uneven or non-emergence phenomenon. 5. Operate strictly in accordance with the technical requirements of seedling cultivation: the dose of pesticides selected for soil disinfection should not be too large. In addition, the cucumber seeds that germinate after sowing and accelerating germination are generally available 3 to 5 days after sowing. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
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