How to feed tomatoes after planting in a greenhouse

So the moment has come when you wondered how to increase the yield of your tomatoes. Specifically, they wanted to know how to feed tomatoes after planting in a greenhouse, about feeding greenhouse tomatoes at different stages of their growth and development. This article provides information on this. Happy reading!

Signs of missing items

Top dressing is needed in that situation, if it is really needed, right so urgently. In other words, top dressing is not needed if the soil is well prepared, saturated with fertilizers and nutrients before planting. But it will be necessary to urgently apply fertilizers, if the plant lacks any nutrients or one of the microelements, it will give you its sign with its appearance.

Further information will be given on the signs of nutritional deficiency, on the types and rules for feeding tomatoes.

At times, plants by their appearance begin to signal that they are lacking in any nutrient. This can be seen on certain grounds.

So, with a shortage:

Nitrogen - growth slows down, the seedling stretches, the leaves become pale green with yellowness and small, the stem becomes thinner and begins to wither.

Phosphorus - the leaves become darker, turn bluish, wrap inward, the veins acquire a purple color. The plant itself becomes dark.

Potassium - the ends of the leaves are twisted, along their edges there is a brown border (this is called a marginal burn).

Zinc - the leaves are thin, ready to tear, become coarse, curl downward, ocher chlorosis appears on old leaves.

Bora - the leaves are lightened and curled.

Copper and sulfur - the leaves become lethargic, may turn green-bluish and twist into a tube.

Calcium - the leaves curl upward, the veins turn white.

Gland - the leaves become saggy, curl and turn yellow.

Magnesium - the leaf turns yellow, curls.

In this situation, you need to feed the tomatoes with a certain fertilizer or a complex of fertilizers (Humate +7 or identical will do).

How to feed tomatoes in a greenhouse - types of feeding

To date, there are two ways of feeding for all plants (tomatoes are also suitable).

Root

The solution is applied under the root system. Top dressing is carried out in liquid form (infusions are prepared - compositions in granules or liquid are dissolved in water, in more frequent cases these are macroelements), in dry form (wood ash), then we immediately water the soil.

Foliar

Leaf, additional feeding (watering the leaves or spraying, there are cases of complex feeding, - calcium nitrate, nitrogen + calcium). It is used when the seedling urgently needs microelements, when the plant has signaled by its appearance that it needs some kind of nutrient, microelements. This type of feeding increases the absorption of nutrients during a growth and development crisis. There is a compensation for the lack of micro- and macroelements, the effect of the applied fertilizers increases, other nutrients become more accessible, especially when nitrogen is fed.

Feeding rules

Time: morning or evening, or afternoon if it is cloudy outside. Top dressing works well with watering.Just before applying mineral fertilizing, it is imperative to water the soil, since the fertilizing is carried out in a humid environment.

Fertilizer dosage: 1 plant needs 0.5 liters of liquid fertilizer. It is necessary to feed systemically, every week or two, for constant feeding of the seedling, it is possible more often, but already with a low-concentrated solution.

When tying the third and flowering the fourth brush, the plants feed more from the ground. Just at this time, it is necessary to actively feed tomatoes with potassium mixtures with Ca, Mg, B, feeding should be carried out every five to seven days.

Scheme of feeding tomatoes in a greenhouse

Tomatoes, like the rest of the greens, need such micro and macro elements: P, K, N, necessarily Mg, Ca, Fe, B, Zn and other useful microelements.

At the moment, 3 stages of feeding tomatoes are being carried out in greenhouse conditions: after planting, flowering and fruit setting, fruiting. As a result, it is necessary to feed five to seven times under the root and one or two spraying or watering the leaves.

Feeding scheme: nitrogen (by the root method, but we immediately make the transition to the second type), nitrogen-calcium (by root or foliar method); nitrogen, phosphorus, potassium or phosphorus, potassium; foliar boron; foliar nitrogen-calcium (if necessary); potassium and nitrogen; potassium; potassium; potassium.

Top dressing of tomatoes after planting in the greenhouse before flowering

First feeding

It is carried out after planting tomatoes in greenhouse conditions after a week or 10 days. At this stage, the tomatoes need fertilizers, which will have a beneficial effect on the active "green mass gain", on the formation of good musculature of the seedling, so that in the future the plant can withstand the load of tomatoes. Symptoms of nitrogen deficiency in tomatoes can often be identified, one of which is the thin top of the seedling.

At this stage, the following nitrogen dressings are just suitable: 30-40 g of ammonium nitrate / 10 l of water (quick action); 20-30 g urea / 10 l

Organic Fertilizer Recipes:
- dilute chicken (bird) droppings with water in a proportional ratio of 1:20 (in a store preparation, which in granules, in addition to nitrogen, contains almost a whole complex of micro- and macroelements);
- dilute cow dung with water in a ratio of 1:10; infusion of nettle or herbal infusion with water in a ratio of 1:10.

Important! To prevent the seedling from getting fat, do not feed it with fresh manure and a lot of nitrogen. All nutrients will go to the stem and leaves, the plant will forget what it is grown for at all, the fruits will be small or there will be a very small amount of them.

In addition to top dressing with a pure nitrogenous solution, for a greater effect at the stage before flowering and (or) after the set of tomatoes, there is a complex of minerals - calcium nitrate, N in it 14.9%, Ca 27%. Ca transports nutrients between the roots and the part above the ground and is a prophylactic against apical rot. Top dressing can be done at the root, and you can also spray. Solution recipe: dilute 20-30 grams of calcium nitrate in 10 liters of water.

Phosphorus. Plays an important role for roots and rooting, for the full value of growth and development. Brought before boarding or immediately upon boarding. Thus, the second feeding is a complex of N, P, K (20-30 g of nitroammofoska / 10 l of water, it contains 16% of each element). Replacement: you can use a fast-acting complex: 20-30 g of potassium monophosphate / 10 l of water. Potassium monophosphate contains 50% P, 33% K.

Phase of active flowering and tomato ovary

To get a gorgeous harvest, you need to feed the tomatoes with boron (especially when the temperature rises), preferably by foliar method.

- Preparations: 5-20 g of boric acid / 10 l of water, or a solution from a pharmacy called "Boric acid";
- Boroplus;
- 15-20 g borofoski / 10 l of water (contains 10% P, 20% Ca, 16% K, 2% Mg, in general, a complete set of essential trace elements for tomatoes).

Gardeners at this time carry out the first potassium feeding (popular solution: 100-200 g of wood ash / 10 l of water). Mineral fertilizer (complex N, K) - 20-30 g of potassium nitrate / 10 l of water (contains 13.6% N, 46% K). Then you need to fertilize with pure potassium, but if the fruits are not fed with N, then you can use potassium nitrate.

Top dressing of tomatoes in the greenhouse during the fruiting period

In this phase, for the accelerated ripening of tomatoes and for their high-quality taste, a lot of potassium and a little nitrogen are needed, since the need for food elements changes. Plus you need calcium, magnesium, boron. Reduce the introduction of nitrogen, since the plant can grow fat due to excessive mass gain of the stem, there will be a delay in the ripening of the fruits.

Potash fertilizers: dissolve 100-200 g of wood ash in 10 liters of water, there is also S, Fe, Na, Ca, B, Mn in the ash, there is phosphorus in the ash from the store, for alkaline soils with a pH of 7.5% and above, we make foliar feeding or do not feed at all with ash;
- 20-30 g of potassium nitrate / 10 l of water;
- 15-20 g borofoski / 10 l of water;
- 15-20 g of potassium magnesium / 10 l of water (26-28% K, 8-9% Mg),

magnesium top dressing - magnesium sulfate or nitrate; 20-30 g of potassium monophosphate / 10 l of water.

It is good to feed tomatoes with humates (potassium humate is mixed with other minerals, "Humate +7" with minerals).

Specialized fertilizers for tomatoes (for those who do not want to steam up while preparing mixtures, you can buy in the store, the preparations have all the necessary elements, act strictly according to the recipe when diluting solutions).

Preparations: Agricola (for tomatoes, eggplants, peppers), Malyshok from Fasco (tomatoes, eggplants, peppers), Gumi-Omi (tomato, eggplant, pepper), Hera (for tomatoes, peppers , eggplant), and many other nutritional products can be purchased at the store.

Answers to frequently asked questions

All questions have been discussed above, but let's recap.

How to feed to feed tomatoes so that they become thick? It goes without saying that any gardener wants to see as soon as possible that the young plant has adapted, has taken root in a new place, he wants to shoot a gorgeous harvest as soon as possible. This is not a dream, this is reality.

To make the tomatoes thick, 10-14 days after planting, we feed the tomatoes with nitrogen or nitrogen-calcium fertilizers: ammonium nitrate, urea, calcium nitrate, bird or chicken droppings, mullein, nettle infusion. This is the whole secret.

How to feed tomatoes so that more fruits are set? Boron will solve this issue, it is better to feed it by foliar method. Boron is an assistant in setting a large number of tomatoes, especially when the plants bloom in unfavorable temperature conditions for them. Solution: 5-20 g of boric acid / 10 l of water (available from a pharmacy, but your own solution is recommended), Boroplus.

How to feed tomatoes to prevent top rot? The answer is simple - calcium fertilizers. Calcium nitrate - salvation before the flowering period or during the set of tomatoes. It contains 14.9% nitrogen, 27% calcium. You can fertilize at the root, you can do spraying.

How to feed tomatoes to ripen quickly? Potash fertilizers are an assistant in this. Tomatoes will ripen and color faster. Required: 100-200 g of wood ash / 10 liters of water; 20-30 g of potassium nitrate / 10 l of water; 15-20 g of potassium magnesium / 10 l of water; 20-30 g of potassium monophosphate / 10 l of water.

The best top dressing for tomatoes in a greenhouse - video

Summing up all of the above, the conclusion is that if you feed tomatoes regularly and according to the rules, then a generous harvest will not be far off!