COVID-19 Antigen Rapid Test-saliva Swab Covid-19 Antigen Rapid Test-Saliva Swab,Covid-19 Saliva Rapid Test Devices,Covid-19 Saliva Rapid Test,Covid-19 Antigen Saliva Test Devices Weihai Kangzhou Biotechnology Engineering Co.,Ltd , https://www.weihaikangzhou.com
Keep the temperature before raising seedlings, especially hot fertilizers. When there is insufficient light in rainy days, warming and heat preservation measures should be taken. Winter and early spring is best to use electric hotbed nursery.
Reducing humidity When growing seedlings in shelters such as greenhouses or greenhouses, nursery beds do not dry. If the seedbed is too dry, it can cover moist fine soil; if the humidity in the bed is too large, it can cover the ash, or it can be properly ventilated and ventilated at high temperature at noon.
Increase the light to choose a place where the light is sufficient to build a seedbed, which is conducive to the healthy growth of seedlings, enhance their resistance to disease, and reduce the rooting phenomenon of seedlings.
Timely ventilation After the cotyledons are unfolded, choose clear and warm weather to uncover the ventilation of the cover, and evenly spread a layer of fine dry soil in the seedbed, then cover the cover tightly. This will not only reduce the humidity of the bed soil, but also increase the humidity. Warm effect.
Why Cucumber Seedling Roots
Cucumber seedlings root is a kind of physiological disease, when the initial occurrence of rust roots, severe root rot, not long new roots, seedlings become yellow and wilt, all later died. The prevention method is as follows: