During the winter period, greenhouse peppers are often suddenly attacked by cold currents. The temperature suddenly drops and the seedlings are easily frozen. Pepper seedlings antifreeze measures have the following four aspects:
First, improve the method of raising seedlings
The use of artificial temperature-controlled seedling raising methods, such as electrothermal hotbeds and industrialized seedlings, is an effective measure to solve the freezing problem of seedlings.
Second, enhance the cold resistance of seedlings, to avoid seedlings leggy
Remove the cover as much as possible before the advent of the cold, so that the seedlings shine more light and exercise. During periods of low temperatures in rain and snow, use weather as much as possible to clear the gaps and allow the pepper seedlings to be exposed to sunlight. When the rain and snow suddenly stopped turning, a few grasshoppers are placed on the seedbed before and after noon to prevent the seedlings from dehydration and wilting. Bed soil moisture, seedlings vulnerable to frost damage, so before the onset of cold waves to control seedbed watering, bed soil too wet to sprinkle a layer of hay ash.
Third, balanced fertilization
P and K fertilizers were added, and cold-resistance agents were used at the seedling stage. Seedlings spraying 0.5% to 1% brown sugar or glucose solution can enhance the cold resistance. Spray 2 times (with 7 days interval) of 0.5% calcium chloride solution in the 3 to 4 leaf stage to enhance cold resistance.
Fourth, thermal insulation
During the cold wave, the bed was covered closely. When ventilation is performed for a short period of time, cold air must be prevented from directly blowing into the seedlings in the seedbed. Cover straw at night. The straw leaves can be sprinkled on the seedlings and cleared after the cold wave. The grass cover on the seedbed should be dry. In the snow days, after the snow stopped, the snow was promptly cleared out of the nursery site.
Today, the iron padlock application is very common, small to every family, large companies, factories, warehouses.
Can be divided into galvanized iron padlock, grey iron padlock, iron padlock imitation brass,gold plated iron padlock,Color by customers choice.
We are a professional manufacturer is a padlock, padlock industry has engaged in 26 years of history, to provide satisfactory service to every customer, and create a win-win.
Iron Padlock,Thick Iron Padlock,Security Iron Padlock,Square Iron Padlock
Shengping Safety Protection Locks Manufacturer , https://www.chinajiuzhou.com