How to protect the seedlings in the greenhouse from spring frosts?

Owning a greenhouse with seedlings need to closely monitor the weather forecasters in May and early June. By lowering the temperature to -7 degrees and below should be guarded. In this weather, young and immature plants at risk of seriously affected.

Therefore it is impossible to young and immature plants were subjected to frost, and efforts have been wasted on growing. About how to protect seedlings against sudden coolings described below.

What are the characteristics and risks have recurrent frosts?

Withstand low temperatures in the greenhouse, heat-loving plants and young seedlings are not prepared in advance. Therefore young plants are necessary to shelter ripening. Sudden cold can seriously harm seedlings.

At this time, the plants need more protection. Light frost on the ground are able to greatly harm the future harvest. Cell sap in plants freeze and rupture the membrane.

What does not tolerate frosts seedlings?

Acute sensitivity to frost is inherent:

• cucumbers;
• tomatoes;
• peppers;
• eggplant;
• melons;
• berries.

They stop the development and fruiting even at sub-zero temperatures to 1 degree. Plants are slowed down by 10-15 days and more. In addition, seedlings of these crops is vulnerable to the grown-up state when the dive is conducted in an open ground.

What sort of ways to protect seedlings from frost?

Seedlings in a greenhouse or a greenhouse will save the following techniques:

• Nice warm the seedlings plastic bottles made of dark material. Several containers filled with water and laid on the ground vayut across the hothouse area. For greater effect, the bottle a little better prikopat. Day tank will heat up, and then overnight to give warmth.

• As heat accumulator bottles are also used instead of cobbles. Only in comparison with them, the stones absorb and give off heat slowly.
• The following method is suitable then when the seedlings have not yet matured, and cucumbers are not fixed on a trellis. To do this, the seedling is covered with arches. Then, they throw spunbond or other covering material, the edges of which are attached firmly to the ground.
• The heat in the greenhouse provide stretching inside polyethylene layer. Material engages clamps for structural elements. In this case, it fit snugly to the wall is not necessary. In between the two materials is created airbag. Such a gap will absorb the cold air and will protect the seedlings. Greenhouse cover film can also outside. Only this would require more than polyethylene.

• Additional heat inside the greenhouse also create a set with hot water tanks or buckets of glowing coals.
• Stably maintain the temperature in the greenhouse can heaters. One or two or even three of the device should be placed securely for plants. Hot air flow should not affect seedlings. It is useful to provide heaters timer, so that they were able to turn on and off.

How to predict the freezing of the weather?

Weather forecasts are not always correct, and therefore it is better to look further at the weather. Indicators next night frosts are:

1. Air temperature often decreases after midnight. The largest decline occurs in the early hours. Therefore, if evening thermometer +2 or +3 degrees ° C, it is desirable to reflect on seedling protection.

2. Precipitation that fell all day, stopped in the evening.

3. The sky clears and the wind subsides.

All the way around if the weather is overcast, windy and rainy. In this case the fear of frost is not necessary.

In fact, to grow seedlings, it takes about 2 months and a lot of energy, but only a single frost is able to nullify all the efforts. Therefore, the protection of young fragile plants should be placed in the first place from May to June.