In the early spring, vegetable seedlings are cultivated, and timely seedlings can improve the light conditions and nutritional status of the seedbeds. This is an important measure to cultivate strong seedlings. The vegetables that require seedlings include tomatoes, eggplants, peppers, cabbages, broccoli, etc. The melons and beans can be divided. Split seedlings should grasp the following aspects. 1. After the seedlings are unearthed, strong light and long illumination time should be given. Breeding seedlings of thermophilic vegetable seedlings with daytime temperature controlled at 20~25°C and nighttime at 13~16°C; cultivating seedbeds of hi-cold vegetable seedlings with daytime temperature controlled at 18~22°C and nighttime controlled at 8~12 °C. Pay attention to early cover opaque cover, increase ventilation and extend ventilation time. In addition, sprinkle dry fine soil 1 to 2 times on the surface of the bed so as to avoid cracks on the surface and reduce water evaporation. 2. The bed temperature should be lowered 3~5 days before seedling separation, and the seedlings should be cultivated at low temperature. Sub-seedlings should be selected for warm and sunny weather, spraying water to the seedbed one day before the seedlings, in order to facilitate raising seedlings. After the seedlings, the spacing of the seedlings of the eggplant vegetables is 10 cm, and the spacing of the seedlings of the cabbage vegetables is 8 cm. 3. The best use of dark water seedlings. In the sub-seedlings, the depth and breadth of the seedlings were 6~8 cm. After the watering, the seedlings were placed on the sides of the ditch after the watering, and the water was infiltrated to cover the soil. After covering the seedlings, the plastic film is covered so as to increase the temperature of the seedlings, and promote the seedlings to take root and shoot slowly. When light intensity is strong at noon, to avoid wilting sprouts, it can cover a small amount of grasshopper shade.
Plastic chain is used in loading and
unloading goods, busy areas, temporary partitions, isolation of
temporary, passages in hotels, sports venues and shopping malls and can
be combined with road cones and traffic warning posts.
It
is usually made of PE material, the weight is very light, It is easy to
install and dismount, the color can be customized with red and white,
yellow, orange, green and so on.
Plastic Chains ,Plastic Link Chain,Safety Plastic Link Chain, Greateagle Safety Products Co., Ltd. , https://www.greateaglesafety.com