Top dressing currants: tips for choosing and adding nutrients
Currant is one of the most popular berry crops in our dachas, its fruits not only have a good taste, but can also be used for medicinal purposes for colds and beriberi. The plant is unpretentious, however, in order to achieve a high yield, it is required to “feed” the bushes.
If you properly fertilize the currant, then it will be able to maintain fruiting for 10-15 years.
Why is it necessary?
Not every summer resident thinks about the need to feed currant bushes. However, only those gardeners who grow berries for sale are fertilizing throughout the year, and this is the right approach.
The fact is that over time the plant weakens, and the soil near the bush is depleted. At first glance, this may not be noticed - the bushes continue to grow, new shoots appear, flowers form on them, berries ripen. However, fruiting is no longer so plentiful, the berries are smaller, and their taste is slightly worse. All of these are signs that your crops need support.
You can understand what elements the currant lacks by their appearance. With a lack of potassium, a yellow border appears on the leaf plates. If the plant needs phosphorus, then the berries become small, and with a nitrogen deficiency, you can notice a rather slow blooming of fruit buds.
Another unpleasant symptom is the lack of annual growth of green mass.
That is why every gardener must necessarily feed the currant bushes.
Regular fertilization gives the plant a lot, namely:
- active growth;
- fast development;
- exceptional taste properties of berries and their high nutritional value;
- saturated vitamin composition of fruits;
- high yield;
- rapid maturity;
- stable harvest from year to year.
Of course, if you only need currants to eat berries in the summer, then you can not waste time and effort on top dressing, but if you plan to harvest currant fruits for future use or sell them, you should pay attention to top dressing in spring, summer and autumn.
Timing
Black currants should be fed 5 times during the season, and red currants need 4 dressings. The first fertilization is carried out in early spring immediately after the snow melts at the time of active growth of the bushes. The second time top dressing is applied in May during flowering, the next - immediately after it in the next month, namely: in June - when the formation of ovaries begins. The fourth time mineral and organic preparations are used at the stage of fruit filling and the last time the plants are fertilized after harvesting. The last top dressing should be carried out 3-4 weeks before the onset of cold weather.
Each season is accompanied by strictly defined types of fertilizers, and failure to follow the rules can lead to the opposite effect, namely: a reduction in yield and poor growth of the plant.
Rules
Fertilization is aimed at increasing soil fertility and increasing yields. Thanks to top dressing, the earth receives the necessary amount of nutrients and minerals.However, before proceeding to the main business, you should understand the types of fertilizers, as well as how to apply them to the ground so as not to harm the plant.
Consider a few basic rules for top dressing.
During spring root dressing, fertilizers are localized near the bush, while the coverage radius should slightly exceed the size of the crown.
During the first two years after planting a seedling, a plant can do without top dressing, but only if the correct amount of organic fertilizer was applied when planting.
Mineral components, unlike organic ones, are not particularly active, therefore they cannot independently reach the lowest roots. To help nutrients penetrate deep, at a distance of 40 cm from the main trunk, small holes or grooves up to 25-35 cm deep should be made in a circle - fertilizers should be placed in them.
Nitrogen-containing dressings go well into the ground, but when such fertilizers are applied under a currant bush, they should be mixed with the soil.
All types of organics are laid out on the ground around the plant.
To achieve maximum efficiency, it is better to alternate root and foliar top dressing.
When carrying out foliar top dressing, lower concentrations of the active substance are used, otherwise there is a high risk of burning the leaf plate. In addition, when purchasing a composition, the choice should be made on one that is completely soluble in water.
Any spraying should be carried out only at night, when the sun does not fall on the green parts - in this case, the likelihood of burns will be minimal, and the exposure time of the drug increases, which increases the effectiveness of top dressing.If you notice that the leaves have become light and pale, you can use ready-made preparations for spraying or ash infusion.
The plant requires both mineral and organic fertilizers.
Mineral elements supply currants with iodine, potassium, nitrogen, phosphorus. They should be introduced together with organic compounds in a year or two - it depends on the general condition of the soil.
Most often they are added in the fall, but in spring and summer they can also benefit the plant.
Keep in mind that if you are purchasing potassium supplements, then you should give preference to those that do not contain chlorine. It is best to enrich the earth with potassium using ordinary wood ash. Spring top dressing with ash is required for plants growing in light and sandy soils.
Nitrogen is very important for plants. However, one should be extremely careful with its use, since with an excess of the component, the risk of developing horticultural diseases increases. The source of this element is humus and manure. The use of such dressings has its own characteristics.
If rotted manure is used, then it must be diluted with water 4-55 times before being introduced into the ground. If the manure is used fresh, then it should be mixed with water in a ratio of 1 to 1 and kept for 4-6 days, then re-diluted with water 10 times.
A good alternative to manure is bird droppings, but this fertilizer is too active, so it is diluted with water 12-15 times.
Organics replaces or supplements mineral supplements, the maximum effect can be achieved by adding fertilizers of both types together.
Organics include compost, manure and humus - these substances must be introduced into the ground before planting - in this case, you will not need to additionally fertilize the plants in the next couple of years.
What and how to fertilize?
In matters of the effectiveness of fertilizing, the main factor is the correct choice of fertilizer. It should be noted that at each stage of the growing season, the plant requires various substances and fertilizers. Consider the features of top dressing at different times.
Spring is a period of active development of the plant, the growth of green mass, the formation of shoulder straps, the appearance of flowers and even more branching of the roots.
At this point, the plants are in a strong need for nitrogen, it is this element that should be the main component of any top dressing used this season, regardless of whether you are making mineral or organic compounds.
The addition of urea is very effective at this moment, it is scattered in dry form around the bush and raked into the ground. For young plants, whose age does not exceed four years, 50 g of the drug will be required at a time, and for older bushes, the dose is halved - 25 g is enough for them. This is due to the fact that as the plant grows and develops, it consumes less nitrogen - to At 4-5 years, the plant reaches its maximum size and, accordingly, spends much less energy on further development.
If you do not like to apply dry fertilizers, then you can prepare a solution at the rate of 1 tbsp. l. the drug in a bucket of water, while it is very important to make sure that the substance is completely dissolved in water, and only then use it for irrigation. This amount is enough to fertilize one plant.
At this time, the currant responds well to the introduction of ammonium nitrate - it is dissolved in water in the proportion of 1.5 matchboxes per 10 liters of liquid and mixed intensively. Before use, strain the solution or use a watering can with a strainer. It is important to process the entire bush, and not just the ground.
Many experienced gardeners prefer organic fertilizers over ready-made mineral fertilizers. High concentrations of nitrogen are found in wood ash - for fertilizer, take 1 cup of the substance for each plant and scatter it on the ground near the bush, after which it is mixed with the soil with a hoe.
An infusion of potato peels has a very good efficiency - to prepare a nutritional composition, they are poured with boiling water (a liter jar of peels per 2 liters of boiling water) and insisted for three hours without fail under the lid. After the infusion has cooled, it should be poured under the bush. Each plant will need 3 liters of this solution.
Important: at the time of flowering of the currant, foliar feeding, that is, spraying, should be stopped, since vitamin preparations can scare away pollinating insects - in this case, it will be impossible to achieve a good harvest.
Of the ready-made store-bought products, such products as Berry, as well as additives Kemira Lux, Azofoska, Kornevin and Kristalon are popular among gardeners.
In summer, the plant spends all its energy on the formation of the ovary and the ripening of berries. If the plant is deficient in nutrients, then the taste of the berries will be quite low - most often they grow bitter or too sour. At this time, plants need potassium and phosphorus. Nitrogen should not be excluded either, but it is required much less than in spring.
At this time, the mullein can help the plant - a liter jar is diluted in a bucket of water and fertilizes the ground near the bushes so that the resulting solution is enough for one square meter of soil.
In order to saturate the soil with potassium, you can use the composition tested by experienced summer residents: potatoes are crushed together with banana peel and added dropwise near the trunk.
Such measures will not only feed the plant, but also scare away pests of fruit and berry crops.
In the autumn, at the end of fruiting, the plant is very weakened, so the main task of the summer resident is to help the currant restore its strength before the onset of winter, otherwise the bush may not survive the prolonged cold weather. During this period, the plant has a special need for phosphorus, potassium and nitrogen.
This composition has proven itself very well:
- 4 kg of compost;
- 20 g of potassium sulfate;
- 10 g of superphosphate.
All ingredients should be mixed in a large container with a small amount of water, then placed under each bush.
In addition, this mixture can be applied to the ground throughout the entire area when digging - however, this should be done very carefully so as not to damage the roots of the plant.
Instead of compost, you can add chicken manure or humus, in which case the amount of organic matter should be halved.
Shortly before the onset of cold weather, currant bushes should be mulched; for this, a “pillow” of peat, humus and compost is placed under each plant. The same mixture can be applied for digging.
Special attention should be paid to foliar top dressing. It is best to carry it out in early summer, while optimally using mineral components - boron, zinc and selenium.
The modern market offers a large number of finished drugs, most often they are produced in the form of powder or tablets. Uniflor-micro uses the best reviews - it is bred at the rate of 2 tbsp. l. powder on a bucket of water and spray the bushes at the very beginning of flowering and repeat the treatment after the formation of ovaries.
In addition, spraying with a composition of 5 g of copper sulfate, 4 g of potassium permanganate and 2 g of boric acid gives a good result. All components are diluted in a bucket of water and the leaves are sprayed, especially on the inside of the plate, where the structure is more porous and the absorbency is higher. It is noticed that as a result of such processing, the yield increases by 1.5 times.
When fertilizing under a currant bush, the so-called folk remedies, which have been used by our compatriots for many decades and invariably contribute to intensive fruiting and active growth and development of the plant, demonstrate great efficiency.
Many summer residents prefer bread mash. To make it, take 0.5 liters of brewer's yeast and dissolve it in a bucket of water; for better fermentation, add 50 g of sugar. The composition should be put in a warm place for several days. The indicated amount is enough for watering one adult bush.
Instead of yeast, you can use stale crusts of black bread, they will need much more - up to one third of a bucket.
Many people use old jam instead of sugar - while fermentation is more active.
Potato peelings, which we have already mentioned, can save the plant in winter. In order to make an effective top dressing, they are thoroughly dried and then ground into powder - this composition is sprayed onto currant bushes during heavy snowfalls.The plant will certainly thank its owners in the spring, because due to the high content of potassium, the fertilizer increases the number of ovaries and, accordingly, significantly increases the overall yield.
Ordinary starch has proven itself well. For this fertilizer, 200 g of powder is dissolved in 5 liters of water, brought to a boil with constant stirring, and then cooled. Pour the resulting mixture again with water, bringing the total volume to a bucket. It is necessary to fertilize with the resulting mixture from a consumption of two liters of solution - three currant bushes should be watered with this amount during the flowering period.
Fish waste can be an ideal fertilizer because it contains a lot of phosphorus: fresh bones are passed through a meat grinder and dried, after which they are scattered into the ground near the plant. In this way, a significant increase in yield and fruiting can be achieved.
Tips
Fertilization can be called a real science. If top dressing is carried out incorrectly, there is a high probability of such adverse consequences as a burn of the root or the green part of the plant. In addition, failure to comply with the terms of processing often causes repelling of currant pollinating insects or can harm the fruits themselves and the people who eat them.
Here are a few recommendations from experienced gardeners who have been growing currants for many years.
Before you start feeding the plant, you should carefully examine the entire bush and make sure that it does not have any diseases and garden pests. Sometimes the bush withers, and gardeners rush to actively fertilize it, but this has no effect, because the reason is not a deficiency of minerals, but the defeat of fungal, bacterial or viral infections.
Keep in mind that first of all, you should treat, and only then apply top dressing.
Shortly before fertilizing, the area under the bush should be abundantly watered - nutrients should only be applied to moist soil - this will reduce the concentration of the drug, as well as protect young roots from burns.
Fertilizers simply fall out in a circle and sprinkle with dry earth.
Fertilizers that are used for digging (fresh manure) should not be applied directly under the stem, since the presence of highly concentrated substances can injure the plant if it gets to the root in a pure, undiluted form. When digging a plot, do not approach the base of the bush at a distance closer than 15 cm.
For information on how to care for blackcurrants so that they are the size of a cherry, see the following video.