How to feed radishes in the greenhouse and in the open field?
In the beds of many Russian gardeners, a crop such as radish is often found. This vegetable is not too demanding in care, ripens quickly and has a wonderful refreshing taste. And if you remember about the vitamin component, it becomes clear why it is so popular. However, beginners are often faced with a situation where instead of strong fruits, a bunch of tops is formed, or the plants shoot an arrow. This happens mainly due to missing or incorrect top dressing.
Finding out which fertilizers and in what combinations can be used, when to apply them and whether they can be alternated, at the end of the season you will be able to harvest an outstanding crop.
Culture Features
The radish root crop, unlike, for example, potatoes, consumes very few substances from the soil - approximately 8 grams per square meter of beds. This is enough for him. But in any case, fertilization will be required, because without this it will simply not be possible to achieve the proper quantity and quality of fruits. It can even be concluded that if the soil is properly fertilized, then the radish will be large and tasty, and if the soil is poor, small and even dry. Differences in taste characteristics are also possible.
However, overfeeding will also be harmful. When too many nutrients are added, unexpected and not always pleasant effects occur.If you add too much nitrogen, then the tops will begin to grow, which does not make any sense, because it does not even go to food. If the radish is overfed with phosphorus, then arrows form, and the root crops themselves do not even appear.
And in general, radish, unlike many other crops, does not like these traditional additives (nitrogen and phosphorus), but loves potassium. Therefore, you should always take into account existing standards and recommendations of specialists. In addition, the current state of the soil will have to be assessed.
Too frequent fertilization is also considered harmful. Their excess can lead to the formation of voids in the root crop and its rapid decay. Usually the first occurs in the fall as one of the preparations for the new season, and the next - just before planting. It is also possible to add nutrients at the initial stage of radish growth, if necessary. At the same moment, the direction of development is usually adjusted. This is determined by tracking the rate and intensity of root growth.
As an example, when leaves and stems grow too much, it means that the soil contains too much nitrogen fertilizer. In this case, elements such as phosphorus and potassium are introduced that can bring the process back to normal. Superphosphate or potassium sulphate mixed with water is usually added. Often, wood ash is added to the mixture, which is a growth stimulant. In the event that the tops lose color and become somehow faded, this, on the contrary, is a signal that the soil lacks nitrogen. You will have to add a teaspoon of urea diluted in a bucket of water.
What to fertilize?
Top dressing of radishes begins even the previous autumn, when the soil is preparing to overwinter.For a better harvest, the place where the bed will then be placed should be fertilized with half a standard bucket of humus, 50 grams of superphosphate and 15 grams of potassium salt (potassium approvals can also be chlorine-containing). Usually these proportions correspond to one square meter of land.
Fresh manure is quite dangerous to use as fertilizer. It has a high nitrogen content, which will not appeal to radishes, in whose roots nitrates accumulate. Fortunately, this nutrient can be applied to the soil during the growth of radish precursors. This is especially true for bird waste.
It should also be mentioned that autumn top dressing is especially important in cases where the crop is to grow in the open field or under cover. You can use both folk remedies and purchased drugs. In addition, do not forget to combine the procedure with digging the beds.
Landing
Next, you will have to feed in the spring before the seeds are planted in the ground, even if this happens in a greenhouse. The procedure can be started as soon as the ground thaws. First, the bed is dug up, and then a complex of fertilizers is introduced into it. For example, it can be 5 kilograms of organic matter, a glass of wood ash, 40 grams of superphosphate and 10 grams of urea. These proportions correspond to the square meter of the beds.
Fertilizers are brought into the soil with a rake, and the substances must be evenly distributed in the ground. Also, the beds can be fed with a mixture of 4 kilograms of humus, 30 grams of superphosphate and potassium sulfide, as well as 15 grams of saltpeter. Again, this refers to one square meter of beds.
In both cases, ordinary wood ash can become a replacement for purchased solutions.
For rapid growth, special simulators are often used, which are sold in specialized stores. The application procedure and the proportions of the solution are usually contained in the instructions. After being introduced into the soil, the bed is processed with a rake - this way it will be possible to evenly distribute them over the surface, and the nutrient components will begin to act faster. By the way, before starting the procedure, the earth must be dug up to a depth of up to 20 centimeters.
In order for the crop to grow productive, you will have to think about such an issue as normalizing the acidity of the soil. In general, radishes can be grown on neutral, and alkaline, and soils with low acidity. But if the PH level is out of the normal range, you will have to add a solution of lime (dolomite flour, ash or chalk).
When the beds are ready, they need to be leveled, grooves should be formed, the gap between which will be 10 centimeters. Before making seeds, they are sprinkled with ashes and watered with hot water.
At the stage of growth
You can also apply top dressing after germination - if you need to correct the situation, or if the previous top dressing was not too effective. In this case, granules of mineral fertilizer complexes are usually applied. How exactly to make them, and in what proportions, is usually indicated on the package. Instead of a complex, you can only add potash fertilizer when the first leaves appear. The granules are neatly planted in the beds, in addition, the radish is neatly planted. This process allows you to avoid arrows and form a beautiful and even root crop.
Fertilizers are also applied in cases of improper development of the root crop. The pallor of the leaves requires the addition of urea and saltpeter in the ratio of 1 teaspoon per bucket of water.After that, the plant "comes to life" and normalizes the process of photosynthesis. Excessive tops and small root crops indicate the need for phosphorus and potassium - 20 grams of superphosphate, one glass of wood ash and 10 grams of potassium sulfate per bucket.
In addition to the above elements, sulfur is good for radishes only if it is applied in small quantities. Naturally, it is not applied by itself, but it can serve as an additive - 20 grams of potassium sulfate is added to any ready-made fertilizer.
Helpful Hints
It is important to remember that top dressing alone is not able to solve problems with growing radishes. Even at the preparation stage, you need to properly prepare the seeds, including after soaking, follow the rules of crop rotation (radishes cannot be planted after cabbage, radish and turnips, but you can after nightshade, legumes and cucumbers), do not make a mistake with the planting dates and ensure constant watering . In addition to fertilizers that nourish and stimulate growth, it will be necessary to introduce substances that can protect against pests. We are talking about bears and cruciferous fleas.
The plant (sprouts or tops) can be sprayed with a solution that combines clean water, wood ash and laundry soap. In addition, after planting, it is recommended to sprinkle the garden bed with a mixture of ash and celandine in proportions of 1 liter of one and 1 liter of another dry powder. Another trick from gardeners is to spray the beds with a saturated garlic solution or an infusion of onion peel and celandine stems.
It is a good idea to water the plantings with water in which weeds have been fermented - this will provide additional nutrition. Other options are a solution of tobacco or wood ash. Watering should be accompanied by fertilizing the soil with peat or humus.Usually, radishes are irrigated with moisture, and then 1 centimeter of useful substance is poured on top. If the vegetable grows in a greenhouse, then you need to complete the procedure with high-quality ventilation.
When a vegetable does not grow well even at the seedling stage, perhaps the problem lies in the condition of the soil. Since it is not always easy to independently achieve the ideal ratio of nutrients, especially nitrogen, experts advise buying ready-made mixtures suitable for a particular crop. The ideal soil for radishes consists of sand, compost, garden soil, and forest soil. The proportions are as follows: one part of sand and two parts of the remaining components. Everything is gently mixed, cleaned of stones, roots and debris.
Feeding that occurs a couple of weeks before harvest is considered optional, but recommended. At this moment, a solution of potassium salt is introduced into the ground, approximately 20 grams of the substance per bucket of water. Top dressing, especially those that are carried out along with watering, is well combined with mulching with compost - this will allow nutrients to gradually enter the soil and fertilize the root system.
The main thing that can be said about fertilizers is that their amount should be balanced - not too large, but not too small. Variations usually depend on the requirements of the gardener and the condition of the plant. In the event that you do not want to use chemistry, compost and herbal solutions will come to the rescue.
There is a certain specificity of applying such fertilizer as wood ash. You should be careful and make sure that small particles do not fall into the eyes or into the nasal cavity. Ash is not recommended if the soil is alkaline.In addition, it is important not to combine ash with urea, ammonium sulfate and other nitrogen fertilizers. You will have to wait a month, otherwise nitrogen supplements will be completely ineffective. It is worth adding that an excess of this substance destroys even beneficial microorganisms.
In addition to the above details, gardeners give a few more recommendations.
- Firstly, you should not apply fertilizers with too high a concentration - they are always diluted with water.
- Secondly, proportions are very important.
- Thirdly, while the plant is developing, nitrogen is important, and then potassium and phosphorus.
- Fourthly, before applying fertilizers, abundant irrigation of the beds is important.
- Fifth, the introduced elements should not touch the tops and roots. Otherwise, burns will occur.
- Sixth, top dressing is prohibited immediately before harvesting.
For information on how to feed radishes, see the next video.