At what temperature can you plant cucumbers in open ground?

Cucumber grows on the site almost every gardener. They are used not only fresh, but also for preservation.However, to obtain a large crop, it is important to pay attention to the temperature, since it affects the quality and quantity of vegetables.

For the cultivation of cucumbers is very important to consider the temperature at which they grow.

1. As a heat-loving plant, cucumber can develop in open ground only at air temperatures from +14 degrees. Frosts, drops have a negative impact on overall development. The optimum temperature for fruiting is the range from 20 to 25 degrees Celsius, and at night the air should not cool below +15 degrees.
2. The seeds germinate in the ground when the air temperature rises to +10 C, the first leaves and ovaries form at +16 C. Experienced gardeners know that if the temperature is forced to +25 C, then after sowing the seeds will break through the soil in five days. Such a significant acceleration allows you to grow vegetables in greenhouses and greenhouses, where the crop can be obtained much earlier.
3. Lowering the air temperature after the appearance of the first leaves leads to cessation of growth, yellowing and decay. If the process continues for several days, then irreversible changes occur in the vegetable cells, which negatively affect further development. In most cases, the plant dies.

At the required temperature, seedlings can be planted in open ground and not be afraid that it will die. But, if the night is still minimal, then the gardeners are advised to wait, because cucumbers can not stand the cold.

Success in growing a large crop depends not only on temperature, but it is crucial. When landing in open ground on the beds it is difficult to regulate it, but the ability to adapt to changes in weather conditions will allow to build the process of growing agricultural crops.

Depending on the phase of development, conditions, the necessary air temperature for cucumbers varies. The substances synthesized by the plant during the day go away at night to the root system and the shoots. A temperature above 25 degrees contributes to the formation of fruits, moderate has a positive effect on the root system and shoots. In the absence of intense heat, cucumbers can bear fruit longer, and overheating is the root cause of the rapid aging of the plant.

At + 15 ... 18 degrees, cucumber bushes grow poorly, growth slows down, although they sprout normally. One of the easiest methods of regulating the regime is planting in a greenhouse or greenhouse. Doors and windows can be opened during the day and closed at night, thus, the plant does not experience sharp drops. A prerequisite for obtaining a good harvest is airing the greenhouse, as stagnant air with high humidity has a negative effect on development.

Since the planting of cucumber seeds occurs in the soil, then its temperature is of particular importance. The best indicator can be considered + 20 ... 24 C. If you plant in such conditions the first shoots appear already after 4-5 days, if the soil has warmed only to +14 C, you will have to wait more than a week, and the seeds will not germinate at the same time. Sprouts that have appeared in adverse conditions, can not continue to give a quality crop, because they are damaged at the cellular level.

Cucumbers can grow and develop at a minimum soil temperature of +16 degrees. The decrease in the index leads to negative consequences. If unhardened seedlings are planted, then it will probably die when the temperature drops to +14 C.

Before sowing seeds, measure the condition of the soil at a distance of 10 centimeters deep. If the thermometer shows +13 C, landing can be done safely.

The problem with frost in spring is especially relevant for summer residents, because cucumbers are afraid of lowering the heat, freezing, and dying. Bushes die at low temperatures, stop growing. A good crop of cucumbers depends largely on how professionally a gardener can protect the plants. In the greenhouse, it is much easier to create comfortable conditions that are necessary for growth than in the open field. Can be used:

• firewood;
• heat gun;
• heater of any type.

Planting seeds in a cold, frozen soil will not give results, the critical temperature is +12 C. There will be no seedlings until the ground warms up. If planting is done in a region with a dramatically changing climate, then use protective scenes. This is when another plant is planted around the cucumbers, with greater growth, for example:

• wheat;
• corn;
• beans;
• peas.

The air temperature around the cucumber plantation should be at least +16 C, and under such conditions it rises 4 degrees higher. In the southern regions, they save not so much from the cold as from the exhausting heat and the scorching sun.

A simple hilling to the first leaflets can be a salvation from frosts, but it is worth understanding that even a short-term decrease in temperature to 1-2 degrees leads to the death of the plant.

Early harvest can be achieved by arranging planting in the greenhouse using manure. Spread it into a deep bed, covering with 25 cm of soil. Seeds are planted for 2 centimeters, with good watering after a few days, shoots appear on the surface. A bed is organized two weeks before planting seeds.

During the day, the greenhouse is allowed to be ventilated, closed at night. Manure warms the soil, due to which the seeds and germinate much faster. It can be replaced by compost beds, which are especially popular in the south, because there is no need to warm the ground much. Such a biomaterial as:

• waste from the table;
• fallen leaves;
• mowed grass and tops of plants.

On such an organic cushion, when the cucumber seedlings are covered with a film, a greenhouse effect is created, therefore the frost is not terrible for the plant. The bed can be decorated using metal or plastic arches. Such designs have a lot of advantages:

• convenience of fixing covering material;
• fast warming up of the soil;
• lack of a large number of weeds;
• no stagnation of water.

In cold weather, cucumber lashes receive the necessary protection against lowering the temperature of the air if they are covered, which means that the gardener is guaranteed a high-quality crop of cucumbers ahead of time. As a dense covering material, you can use polyethylene or spunbond, which perfectly provide adequate protection from the cold spring. It is necessary to take into account the fact that the best is the density of the material 23 g / sq. m. It is enough to design resist against the wind.

Enjoy your own cucumbers can be earlier if you grow seedlings, and not planting seeds. Accelerates germination germination. If you place the seed in a moist warm environment, it swells and a sprout appears within a few days. You can use a wet cloth, but the temperature in the room should be +20 degrees.

For quick germination in the ground, it is necessary to water it with high quality and warm up to + 24 ... 28 degrees. Significantly shortens the germination process by covering the film. After three weeks, the seedlings will be ready for planting, but it is permissible to produce it only when the ground warms up to +15 degrees. Watering plants is also worth warm water, this will additionally not only moisten the soil, but also maintain the temperature necessary for the formation of the root system.

Gardeners warn beginning gardeners against mistakes and do not recommend watering with water at a temperature of +10 degrees and below. As a result of such exposure, the plants often start to hurt, the optimum temperature should be + 20 ... 22 degrees.

At the first stage, before the appearance of the first leaflets inside the room, there should be at least + 25 ... 28 degrees. Then on the thermometer should be up to +22 C, while necessarily install additional containers with water, which allow you to easily achieve the proper level of humidity.

At night, the temperature drops to +17 ° C, since it is necessary to ensure that the seedlings do not stretch upwards but become rooted. Ten days later, when the root system becomes quite large, the air is heated to +22 C, but it should not be more than +27 C.

Despite the fact that cucumber is a thermophilic plant, when the air warms from +35 to +40 degrees, the number of dried ovaries on the bushes increases. From the gardener is required to organize a permanent airing and provide the necessary humidity. Irrigation with strong heat is required twice a day:

• in the evening;
• early in the morning.

Grow a large and high-quality harvest is not so easy if the gardener does not follow the recommendations for compliance with the temperature regime. Planting seedlings without prior hardening leads to the death of a larger number of bushes. Even the strongest variety can not always withstand a sharp cooling. The difference of even a few degrees is an obstacle to the normal adaptation of the plant in open ground.

Some professionals advise you to pour boiling water over the bed and cover it with a wrap, before placing cucumber seedlings there. This technique makes it possible, without spending a lot of energy, to warm the ground to the required level. In cold regions it is acceptable to use harrowing crops, which raises the temperature of the soil by 4 degrees.

At low temperatures, plants weaken, and as a result, diseases are easier to hit. A short-term cooling spell is not terrible, but a long one can cause the bushes to take a few weeks to recover and regain growth. Regulating the regime is not easy, but it is possible if you become familiar with the technologies described. As a result of accurate implementation of all recommendations in the autumn gardener waiting for a big harvest.

On how to plant cucumbers in open ground, see the following video.