Growing tomatoes in the open ground or in a greenhouse is fairly easy if you know the basic requirements for caring for this popular vegetable. However, it should be noted that the cultivation of tomatoes in the greenhouse differs significantly from their cultivation in the open ground. The main reason for this is that in a greenhouse the plant is in an enclosed space and does not receive anything from outside except sunlight, and even through glass. Therefore, caring for tomatoes in the greenhouse requires special knowledge, which consists in feeding, regular watering, as well as in maintaining a certain temperature regime and in a good ventilation of the greenhouse. Let's take a closer look at the top-dressing of tomatoes in a greenhouse.
On top dressing of tomatoes in the greenhouse, you should begin to take care of the stage of preparing the soil for planting, introducing necessary fertilizers into it. On the basis of 1 square meter of soil, it is necessary to make 1 tablespoon of potassium sulfate, 2 tablespoons of superphosphate and half a bucket of coarse sand. Then the soil should be well digged and you can plant the seedlings.
When and how to feed tomatoes in the greenhouse?
To get an excellent harvest of fruits, it is recommended to carry out fertilizing 3-4 times. The first top dressing of tomatoes should be carried out during budding and flowering began, or more precisely 15-20 days after landing in the ground. Experienced truck farmers know many effective recipes for the first feeding. However, if initially insufficient amount of fertilizers was laid in the soil, it is recommended that the first top dressing of tomatoes in the greenhouse be done with a mullein with a scoop of ashes , an infusion of bird droppings or fermented grass. Unlike organic fertilizers, mineral fertilizing plants at this age usually have a one-sided effect: some stimulate the growth of plants, and others - flowering. In case of need, it is best to feed Nitrophus (1 tsp per 10 liters of water) or another complete mineral fertilizer, applying 1 liter of solution for each plant bush.
In the event that the dressing of the soil was carried out in accordance with the norms, then with the first top dressing of tomatoes in the greenhouse, it is better to make Kalimagnesia or potassium sulfate (1 tsp) and superphosphate (1 tablespoon per 10 liters).
The second feeding is recommended to be carried out 10 days after the first. Carry out this top dressing tomato in the greenhouse with a solution of mullein or bird droppings with the addition of a full mineral fertilizer (1 tablespoon per 10 liters of solution), for example "Kemira-universal", "Rastvorin", and also 3 g of potassium permanganate and copper sulfate . For stunted plants, top dressing should be applied to 1 liter per bush, for determinants - 1.5 liters, and for tall varieties - 2 liters.
The third feeding should be done during the collection of the first mature fruit, about 12 days after the second. It can be produced by the same solution and in the same amount as the second one. In the event that the branches of the plant grow rather quickly, and there are no flowers, it is necessary to replace fertilizers containing nitrogen with ash infusion or aqueous extract of superphosphate.
Foliar top dressing of tomatoes in a greenhouse
Foliar top dressing to ensure a full fertilizer plants can not, it can only become a purposeful addition in case of need. For example, if the plant grows poorly, has thin stems and light leaves, it is necessary to perform foliar dressing with urea solution (1 tsp per 10 liters of water) prior to flowering. And if at high temperature the plant massively sheds flowers, boric acid (1 teaspoon per 10 liters of water) is needed.
Now you know what to feed tomatoes when growing in a greenhouse to get a good and abundant harvest.