How to feed tomatoes in a greenhouse? In order to get earlier harvests of tomatoes, many gardeners grow them in greenhouses. With this method, it is important to pay as much attention to top dressing as possible. After all, the area in this case is limited, therefore, the soil is depleted very quickly. How to properly fertilize tomatoes in a greenhouse?
Many summer residents advise fertilizing plants already when transporting seedlings to the ground. At the same time, a hole is dug up and rotted manure, compost or humus mixed with ash is introduced into it. Thus, tomatoes at the first stage of development will receive all the necessary minerals, as well as macro- and microelements. The first feeding of tomatoes in the greenhouse (or rather, the timing of its implementation) causes some disagreement among summer residents. Many believe that fertilizing is not earlier than a couple of weeks after transplanting seedlings. Each summer resident needs to solve this problem for himself, based primarily on how well the land was fertilized in previous years. If funds were rarely deposited, it is still worth feeding seedlings already when planting. In this case, it will take better and go faster.
Be sure to feed the tomatoes in the greenhouse also during the budding and ripening of fruits. Tomatoes are very sensitive to the absence of phosphorus and calcium. In the first case, violet-red spots appear on the leaf blades from below. With a lack of calcium, the development of apical rot is possible. For its prevention, plants should be sprayed during flowering with a solution of calcium nitrate (1 tablespoon per 10 l). At the beginning of budding, you also need to carry out root dressing, using a product of the following composition: half a liter of mullein and bird droppings are mixed with 1 tbsp. potassium sulfate and breed it all in a bucket of water. A very good solution would also be holding such an event as feeding tomatoes with ash at a time when ovaries begin to form on them. This will make up for the lack of essential trace elements. For each plant, you need to spend about a liter of such a solution: 2 liters of ash diluted in water, 10 g of boric acid per bucket of water (hot). Before use, the mixture, of course, must be cooled to room temperature.
During the mass ripening of fruits, it is necessary to carry out the final feeding of tomatoes in the greenhouse. In this case, 1 tablespoon is used. sodium humate (in liquid form) and 2 tbsp. superphosphate, diluted in 10 liters of water. The beds are also watered at the rate of 1 liter per plant. The use of this tool will make the fruits much more tasty. In addition, it will significantly accelerate ripening.
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Of course, you should not follow the above instructions. Each gardener knows the features of the soil in his own greenhouse and can independently determine which fertilizers will be useful. Be sure to observe at the same time the state of the plants themselves. We have already spoken about the signs of phosphorus and calcium starvation. Due to the lack of potassium, tomato leaves begin to dry out at the tips. If there is a lack of nitrogen in the soil, the plants will become yellowish and will develop poorly.
In all these cases, it is necessary to fertilize the tomatoes in the greenhouse with the appropriate types of mineral fertilizers. However, it is best not to wait for such unpleasant changes and fertilize the plants on time with the mineral composition or infusion of ash. The latter contains just a huge amount of the most diverse substances necessary for the proper development of tomatoes. Among other things, ash neutralizes acidic soil. In this case, coal is considered to be especially useful.