Content
Experienced gardeners, growing tomatoes on their plots, get a rich harvest. They understand all the intricacies of plant care. But beginners have many problems associated with proper watering, creating optimal conditions for planting. No less worried about novice gardeners, what fertilizers, at what time you can use.
For full-fledged growth and fruiting, tomatoes require different dressings containing a certain set of trace elements. At each stage of cultivation, the need for plants is different. Today we'll talk about why you need to feed tomatoes urea, on how to properly breed and apply this fertilizer. Who doesn't want to see such a crop of tomatoes as in the photo in their garden!
What trace elements are needed for tomatoes
Most of all, tomatoes are in need of phosphorus, potassium and nitrogen.
Each of them does its own "job":
- phosphorus is responsible for the resistance of plants to adverse conditions, strengthens the immunity of tomatoes;
- potassium is necessary for the plant, especially during the fruiting period, its presence improves the taste of fruits, reduces decay;
- the presence of nitrogen in the right amount contributes to the growth and development of plants, is responsible for productivity.
The lack of a particular mineral can be recognized by the appearance of the plants. For example, a lack of nitrogen leads to yellowing and dropping of the lower leaves.
There are several options for nitrogen-containing fertilizers, the percentage of nitrogen in them is different:
- in sodium or calcium nitrate about 17.5%;
- in ammonium, ammonia dressings about 21%;
- in urea and ammonium nitrate not less than 46%.
What is urea
Fertilizing tomatoes is a completely natural procedure. You need to fertilize plants at all stages, from seeds to care in the ground. Urea as fertilizer, feeds tomatoes with nitrogen. This top dressing has another name - urea. Release form - white granules. Soil bacteria recycle nitrogen, converting it into ammonium carbonate, which partially evaporates. Before starting work, the soil must be moistened.
Benefits
- The granules are completely soluble in water.
- Soil and fruits do not accumulate nitrates if fertilizer is applied as recommended.
disadvantages
- During the preparation of the solution, due to the endothermic reaction, the temperature of the working solution decreases. Therefore, it is necessary to use warm water. Otherwise, the cold solution can be stressful for the tomatoes.
- In the case when the plant is in great need of nitrogen, it is necessary to add more granules. To neutralize the possibility of burns, sodium sulfate must be added.
The role of urea in the development of tomatoes
Any fertilizer, including urea, participates in the growing season of tomatoes, strengthens the immune system, due to which the plants become strong and hardy. This fertilization is especially important at the seedling stage, when the plants must build up green mass and a good root system.
With a lack of nitrogen, plants slow down their growth, their leaves may deform, yellowing and premature leaf fall are observed. And this negatively affects the formation of ovaries, fruits.Tomatoes are fed with carbamide at the seedling stage, but you need to use fertilizer carefully: it is better to underfeed than to overfeed the plants.
Breeding rules
We have already talked about the role of urea for feeding tomatoes. It remains to figure out how to properly breed it in order to achieve a positive effect of nitrogen on the development of plantings.
To dilute urea, you must first carefully study the recommendations.
Sometimes it can be difficult to determine the amount of fertilizer without a measuring spoon. We offer you a table that will help you accurately measure the most common fertilizers.
According to the recommendations for one square, 25 grams of granular urea is enough for each square of plantings. They are bred in a 10 liter bucket. This solution is enough for 10 tomatoes. Watered at the root.
Application
Since urea is a chemical, you need to know the rules for working with it:
Fertilization rules
- Diluted strictly according to the instructions.
- Watering in the evening.
- Track how the plants have changed.
Root dressing
According to the rules, urea can be used no more than five times for root dressing if the soil on the site is poor.
First time seedlings are grown. 1 gram of fertilizer is added to the planting boxes, then the seeds are sown. Such feeding accelerates the germination and growth of tomatoes at the initial stage.
The second feeding is carried out when the tomatoes are planted in a permanent place. Since urea is a fertilizer that oxidizes the soil, superphosphate, bird droppings, and wood ash are added as a neutralizer. Such feeding should be done a week after planting the seedlings.
Third time urea like fertilizer for tomato apply after another 3 weeks. Previously, this cannot be done, otherwise the introduction of nitrogen will lead to the rapid growth of greenery. It is best to prepare a complex feeding: 10 grams of urea is added to the mullein solution. Watering should be done after sunset so as not to accidentally burn the leaves.
The fourth feeding of tomatoes with urea should be carried out only when the inflorescences are not tied, they fall off. It would be ideal to dilute urea with micronutrient fertilizers for tomatoes.
The last time the plants are watered at the root is when the tomatoes begin to ripen. In 10 liters of water, you need to dilute 2 or 3 grams of urea, potassium magnesium, potassium sulfate... After watering, the soil is sprinkled with wood ash.
Foliar dressing
Urea or carbamide is a nitrogen-containing fertilizer. Its use in growing tomatoes at different stages of plant development is really effective. Although you shouldn't forget about caution. Even a weak solution, falling on young leaves, can lead to burns.
Urea can not only be added to the root, but also foliar top dressing can be carried out. As you know, microelements are absorbed faster through the leaves.
Add one large spoonful of fertilizer to a 10 liter bucket of water.
Spraying tomatoes with urea has a good effect on the appearance of plants. They become greener and more luxuriant. But you should not be zealous with urea at the fruiting stage, since at this time the plants need more phosphorus than nitrogen.
The use of urea in the garden:
Let's summarize
As you can see, tomatoes are essential for nitrogen.With its deficiency, the seedlings grow thin, strongly stretched. The leaves are pale, the lower ones may turn yellow ahead of time. Overfeeding with urea causes a rapid growth of green mass, and few ovaries are formed. Both the lack and the excess of nitrogen negatively affect the yield.
The conclusion suggests itself: you need to monitor the development of tomatoes during the period of growing seedlings and after planting in the ground. If the plants develop normally, then only mandatory feeding is carried out.
