Hardening seedlings - an important stage in the cultivation of plants intended for planting in the beds and greenhouses on the territory of the villa. Gradual adaptation to the environment contributes to the viability of vegetable crops, they are less susceptible to unfavorable factors, such as temperature difference, diseases and pests. In addition, after the hardening begins early fruiting and yield increases.
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plan hardening
To start hardening need without haste, because the seedling is a lot of stress. Start procedure must be about 2 weeks before planting young plants in the garden or in a greenhouse. Species, which are resistant to cooling (cabbage, cineraria) can start to harden at a temperature in the shade 8 +... + 10 ° C, thermophilic (tomatoes, peppers, eggplants, cucumbers) need air above + 14 ° C.
In the early days of the seedlings need to make no more than 2-3 hours in the fresh air. Be sure to pritenyat from the bright sun it. Every day during the stay in the street you need to renew for 1-2 hours. Gradually, it is necessary to increase the number of hours when the plants are located directly under the bright sun.
Culture need every day to accustom to the new conditions, by the end of the period of hardening seedlings should stand outside all day and night. It is believed that if the young plants with success several times the night away from home, they are ready to be Planted at a bed or in a greenhouse.
If the heat treatment process is carried out directly in the greenhouse, it is necessary to constantly ventilate by opening the door wide for a first time and then leaving them wide open around the clock. However, if the predicted freezing greenhouse at night is better to close.
If seedlings are held at tempering gazebo, often it is important to push the sash windows, letting in fresh air, and before planting in the ground it is desirable to make the boxes to fresh air 3-5 days. If the temperature at this time becomes lower than + 6 ° C for plants that like heat, and 3 +... + 5 ° C for those that survive freezing, cultures, it is desirable to move the boxes into the house or wrap lutrasilom.
The hardening process includes a gradual reduction in irrigation, the volume of water remains unchanged, but increases the time between receipt of the plants. It is necessary to wait until the earthen room is well dries, and even then abundantly watered seedlings. However, we can not allow in boxes came a severe drought, as this may lead to the fact that the young plants will drop flowers and flower buds, slow down the development of the root system, they will cease to gain green mass.
To strengthen the roots and accelerate the process of survival of seedlings for 3-4 days before transplanting in the garden experienced gardeners recommend to make fertilizer by mixing nitrogen, phosphorus and potassium in a ratio of 1: 4: 7 and abundantly irrigating solution all boxes.
Some gardeners believe that the purchase harden the seedlings is not necessary. However, it is not. It also needs to be adapted, but time is getting used to the open air can be reduced to 3-5 days. You can put it on the whole day in a shady place, and at night to protect the dense covering materials. However, if in the near future, a strong decrease in air temperature is not expected to be allowed to leave it open during the day and at night.
Quenching need to constantly monitor the whole process, it should be gradual. If cooling is expected, it is better not to take risks and move the boxes to the house or to warm the young plants in any way possible.
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