How to Feed Tomatoes with Ammonia

Tomatoes require fertilizer to grow well. One of the most effective is fertilizing tomatoes with ammonia. But not everyone knows what it is used for and how to do it right. Consider the options for using this fertilizer.

Feeding tomatoes with ammonia

The benefits of ammonia

At the initial stage of development of any culture, nitrogen is required for growth and gain of green mass. This trace element plays an important role in the formation of chlorophylls, without which the process of photosynthesis is impossible. A sufficient amount of nitrogen will ensure the intensive development of stems and leaves, and subsequently will provide a good platform for flowering and fruiting.

Features of this fertilizer

Ammonia (ammonium hydroxide solution) is an ammonia solution, its concentration is 10%, and the amount of nitrogen is 80-82%. Nitrogen in it is easily digestible. What gives this fertilizer an advantage over other nitrogen fertilizers such as:

  • manure;
  • ammonium nitrate;
  • urea.

For the breakdown of trace elements in them, it takes time from three weeks to several months. The ammonia solution is affected immediately. Nitrogen in this fertilizer is volatile and does not pollute the soil, such a fertilizer is environmentally friendly and safe.

When is feeding necessary?

For tomatoes, they are used as the main nitrogen fertilizer during the growing of seedlings and after planting in the ground. And also contribute in case of nitrogen deficiency.

It is easy to determine the lack of nitrogen without additional tests on the appearance of the bushes. The main signs of deficiency:

  • pigmentation changes;
  • thin stems;
  • leaves are small and irregular in shape;
  • lack of growth.

The first sign of nitrogen deficiency is pallor and yellowing of plants. The loss of saturated color will be observed both on the leaves and on the stems. And also with nitrogen starvation, the stems become thin, lose their elasticity, easily bend under weight, often break. Bushes grow with small leaves, with an irregular shape. Tomatoes slow down or completely stop growing. All this indicates a lack of trace elements, namely nitrogen, and requires an immediate solution to the problem. It is important that tomatoes get nitrogen as quickly as possible for recovery and development.

It is important to remember that an excess of nitrogen can also lead to negative consequences. It is important to comply with the measure. With an excess of nitrogen, the following symptoms are observed:

  • lack of flowering;
  • damage to fungal diseases.

Feeding with ammonia in different periods of growth

Tomatoes respond very well to ammonia top dressing. Its use will prevent the improper development of culture. It is very important to provide seedlings and adult bushes with a sufficient amount of nutrients. A balanced diet of tomatoes plays an important role not only in growth and fruiting, but also in the resistance of plants to diseases.

Top dressing plays a big role in plant development

This is an active highly concentrated fertilizer that requires the right dosage and compliance with the intervals between applications.

Feeding seedlings

The first step in growing seedlings is the preparation of seeds and soil. To prevent infection with fungal diseases, it is worth processing the seeds. A weak 1% solution of ammonia copes well with this. Seeds are washed with such a solution, and then sown in the substrate. This not only disinfects planting material, but also stimulates seed germination.

Grown seedlings at home often look weak and fragile, very difficult to tolerate transplants, long rooted in a new place. And as a result, the time of flowering and fruiting comes later than the appointed time. In order to avoid this situation, it is advised to feed the tomatoes.

Such dressing for seedlings is enough to conduct once. The best time to feed the plants is two weeks after a dive. In a bucket of water (10 l) add 2 tbsp. l (20 ml) ammonium hydroxide solution. Pour the seedlings with a solution. For one bush, 2-4 tbsp is enough. spoons.

The effect is observed very quickly. Seedlings grow well, become strong, leaves acquire a deep green color. Easily transfers the transplant to a permanent place.

Top dressing in the open ground and greenhouse

Adult tomato bushes require nitrogen top dressing before flowering. This will provide growth, resistance to changing weather conditions. Healthy plants are also less susceptible to disease and pest damage.

Fertilizing tomatoes with a solution of ammonium hydroxide in open ground and greenhouses is carried out twice with an interval of two to three weeks. For 10 liters of water, 2-3 tbsp is enough. l ammonia. The solution is watered with bushes. About 1 liter is enough for one adult bush. After nitrogen dressing, tomatoes should be fertilized with phosphorus-potassium fertilizers. But not earlier than 10 days after nitrogen.

Ammonia has proven itself in cases of nitrogen deficiency. At a time when tomatoes require immediate recharge. Easily digestible nitrogen in ammonia, allows you to quickly cope with the problem. One week is enough to see the effectiveness of this fertilizer.

Fertility for ripening fruits

Nitrogen in a solution of ammonium hydroxide has the ability to stimulate the growth of fruits and accelerate the ripening of the crop. Such top dressing is carried out at the beginning of the formation of tomatoes.

Prepare the mixture by mixing 10% solution of ammonium hydroxide 10 ml, apple cider vinegar 200 ml and 10 ml liquid soap in one bucket of water. The solution is mixed well and the fruits are sprayed. In addition to stimulating ripening, such a cocktail will protect tomatoes from pests.

Ammonium Pest Control

They use a 10% solution of ammonium not only as a fertilizer, but also practice treating them with plants from pests. It copes well in the fight against aphids, which often affects nightshade.

To spray the plants, prepare a solution with 10 l of water and 2 tbsp. l alcohol, household soap is used as an adhesive, it is rubbed and added to the solution. Mix well and spray the bushes. This gentle method will help to easily cope with the pest and will not harm the plants.


The advantages of fertilizer with ammonia can be attributed to its easy availability and ease of use. As well as the quick action and effective provision of tomatoes with necessary nitrogen. Properly performed top dressing is the key to plant health and a high yield.


Mukuzani grape cultivation
Methods for treating diarrhea in pigeons
The rules for planting garlic in the winter in Belarus