What fertilizer is used for blueberries? What is the best fertilizer to use for blueberries

What fertilizer is appropriate for blueberries.

1.Depending on the age of the blueberry tree and its phenological period, the fertilizer applied varies from time to time

1) Fertilization 10 to 15 days before germination, mainly nitrogen fertilizer;

2) Fertilization in May after fruit set, mainly nitrogen, phosphorus and potassium fertilizers;

3) Fertilization 10 days before harvest, mainly phosphorus and potassium fertilizer, is used to promote fruit expansion and improve yield and quality.

2.The specific method of fertilizing blueberries should be determined according to the condition of the tree and the fertility of the soil. The root system of blueberry is fibrous root system, the absorption capacity is weak, and the root system is mostly concentrated at the outer edge of the crown projection or slightly farther away, so the fertilization site should be mainly in the place where these roots are concentrated, so as to induce the root system to develop outward and expand the absorption area, not too close or too far.

Different types of fertilizers, different methods and locations of fertilizer. The root system of blueberries is shallow, mostly distributed within 20 cm of the surface, so the fertilization depth should not be too deep, 5 20 cm is appropriate. It is better to apply organic fertilizer relatively deeply; Nitrogen fertilizer is highly mobile and should be applied shallowly; Phosphate fertilizer is applied intensively.

There are three main types of basal fertilizer application: ring fertilization method, strip furrow fertilization method, and soil turning method after spreading the whole garden.

Can blueberries be compounded.

Blueberries can be compounded. The application of nitrogen, phosphorus and potassium compound fertilizer to blueberries is better than that of a single fertilizer, and the ratio of nitrogen, phosphorus and potassium fertilizer is 1 1 1. However, blueberries are sensitive to chlorine, so do not use chlorine-containing fertilizers such as ammonium chloride and potassium chloride.

In general, basal fertilizer should be applied before the autumn equinox soil freezes, and most of them are applied in November when the leaves fall. In addition, topdressing should be carried out many times in blueberries during the whole growth period, and the first time should be applied 10-15 days before germination to promote flower bud differentiation; The second application is applied at the time of flowering and fruit set, generally in May, so that the plants can flower and bear more fruit and improve the fruit setting rate; The third application is 7-10 days before harvest to promote fruit expansion and improve yield and quality.

In summer, blueberries are raised in this way, pruned correctly, and next year there will be more flowers, and the fruit will not be eaten.

Blueberries are best with organic fertilizer, nitrogen fertilizer, phosphate fertilizer, and potassium fertilizer.

Generally, nitrogen fertilizer is mainly applied 10-15 days before germination, nitrogen, phosphorus and potassium fertilizer is mainly applied after fruit set, and scale fertilizer is mainly applied 10 days before harvest. Blueberry fertilization needs to be selected according to the age and waiting period of the tree, 10-15 days before germination to nitrogen fertilizer, after fruit set to nitrogen, phosphorus and potassium fertilizer, before harvesting to scale fertilizer, the specific fertilization method and dosage should be decided according to the actual situation of blueberry tree and soil fertility.

Blueberries are chlorine-sensitive crops, and if the chloride concentration in the soil is too high, it will cause chloride poisoning and death of fruit trees, so when fertilizing blueberry fruit trees. Be sure to avoid using fertilizers such as ammonium chloride and potassium chloride, and try to use potassium sulfate compound fertilizers. In addition, blueberries do not like nitrate nitrogen, and the use of nitrate nitrogen is easy to cause the death of blueberry trees, so the use of ammonium nitrate, potassium nitrate, calcium ammonium nitrate and other fertilizers should be avoided when planting blueberries.

How to choose blueberries

1. Look at the surface.

There is a white mist on the surface of blueberries, which is said to be only found in unpolluted blueberries. So don't care about the top layer, just pick and choose.

2. Look at the color.

It is better to be dark purple, and the light color can only indicate that it is not mature. So choose darker-colored blueberries, which are more ripe and will be sweeter and more nutritious.

3. Look at the size.

The large ones are farmed, and the smaller ones may be wild. But now there are very few wild blueberries, and everyone goes to pick wild blueberries, believing that the wild ones have long been harvested. But let's be honest, big blueberries taste much better than small ones, and the nutritional value is the same.

4. Look at the epidermis.

Blueberries will have small depressions after being left for a long time, which are small pits of decay. Once the chick picked two boxes of blueberries, one box was good, and the other box came home and saw some small pits that could not be seen at all if you didn't look carefully, so she was pitted.

Potassium dihydrogen phosphate and ammonium sulfate are best used for blueberry trees.

These two fertilizers can promote better flowering and fruiting. It should be applied in moderation before flowering and before fruiting, and the nutrients are sufficient, which can promote better flowering and increase the amount of fruit. In addition, it is important to pay attention to the management of light and moisture.

Like light, let it bask in the sun more. The growing season consumes a lot of water, so it is necessary to replenish water in time to make the soil slightly wet.

Blueberries require a relatively small amount of fertilizer, which requires us to accurately equip the amount of fertilizer, otherwise less application will not help the growth of the plant, and more application will cause fertilizer damage and economic damage.

The amount of fertilization should be determined according to the growth, age and yield of the fruit trees in the blueberry orchard, and the fertilization amount is different in different blueberry orchards, but there is a principle that needs to be mastered: more fruit trees with more fruits, and less fruits with less fruits; Less for young trees and more for large trees.

Blueberry planting attention

First, seedling selection

When planting blueberry trees, it is necessary to dig blind to choose varieties with high yield, few pests and diseases, and large fruits, and the age of the trees is best more than two or three years, so as to ensure that the root system is strong and grows vigorously, so that the blueberry seedlings can resume growth faster after planting.

2. Prepare the soil

Blueberries prefer soft, breathable, slightly acidic soils, so be mindful of the soil you use. If it is planted in a potted plant, it is recommended to mix it with peat soil, humus soil, and sand, and the pot can be prepared as long as the size is appropriate. If it is planted in the ground, it is necessary to sprinkle fertilizer and plough the land first to ensure that the plot is soft and fertile.

3. Planting method

When planting, dig a suitable pit according to the size of the blueberry seedling, and then put the seedling into the pit to ensure that its root system is extended, and then slowly fill the soil, covering the soil and compacting the soil. After planting, it should be watered in time to allow the seedlings to absorb enough water, so that the root system and the soil are more closely combined, so that it can resume growth as soon as possible.

Fourth, the light is sufficient

Blueberry is a very light-loving plant, except for the strong light in summer, it is best to give it full sunshine in other seasons, and sufficient light can promote its vigorous growth.

5. Fertilizer and water management

Blueberries like a humid environment, drought tolerant, do not dry can not be watered, dry to water thoroughly. Moisturizing in spring and autumn, high temperature in summer, appropriately increase the number of watering, and frequent ventilation. In winter, the temperature is low, so you can pour overwintering water once before winter.

In addition, in the peak growing season, it is necessary to top dressing frequently to ensure that the nutrients are sufficient, and the fertilizer is mainly to choose rotted farmhouse fertilizer.

What fertilizer is good for blueberries.

Blueberries are an oligotrophic plant. Compared to other fruit trees, the tree has a low content of nitrogen, phosphorus, potassium, calcium, and magnesium. Blueberries are ammonium-loving fruit trees that absorb more ammonium nitrogen in the soil than nitrate.

The effect of applying nitrogen, phosphorus and potassium compound fertilizer to blueberries is better than that of single fertilizer. The ratio of nitrogen, phosphorus and potassium fertilizers is 1:1

1。Ammonium nitrogen fertilizers such as ammonium sulfate are better and can promote the vigorous growth of plants.

What fertilizer can be used to increase the yield of blueberries.

Generally speaking, 10-15 days before budding of blueberries, nitrogen, phosphorus and potassium fertilizers are mainly applied 10 days before harvest, which helps to increase yield.

What fertilizer can blueberries be watered to make them bloom more.

If the color of ammonium nitrogen fertilizer is better before blueberry flowering, organic tung fertilizer should be used when topdressing, and nitrogen, phosphorus and potassium should be the main factors to promote more flowering.

Blueberry fertilization time.

The first fertilization of blueberries was 10-15 days before germination, with nitrogen fertilizer as the main fertilizer, the second fertilization was in May after fruit set, with nitrogen, phosphorus and potassium fertilizer, and the third fertilization was 10 days before harvest, with phosphorus renting and potassium fertilizer to promote fruit expansion and improve yield and quality.

Blueberry fertilization method.

Blueberry topdressing is mainly drip irrigation, and watering and fertilization can be applied in stages at the germination stage, swelling stage, and after fruit picking. The chemical fertilizers used in drip irrigation fertilizers have high solubility and low impurity content. Pay attention to the combination of fertilizers to prevent precipitation during fertilizer mixing, and it is best to use the fusion state of trace elements.

Blueberry fertilizer is best applied with nitrogen, phosphorus and potassium compound fertilizer.

The planting conditions of blueberries are more stringent and sensitive to fertilizers, so some more rigorous and scientific methods should be selected for blueberry fertilization, such as choosing different fertilizers according to the different needs of the growing period, mainly nitrogen fertilizer before germination, nitrogen, phosphorus and potassium fertilizer after fruit set, with some ordinary compound fertilizers, and phosphorus and potassium fertilizers before harvesting.

Blueberry fertilizer is very beneficial to improve the quality of the land, this fertilizer is mild, and the fertilizer effect is relatively long. Blueberries don't like calcium, so you can't apply too much calcium fertilizer when fertilizing. Blueberries should be applied a slow-release fertilizer in spring, shallow buried in the surface of the potting soil orange line, and then give a little nitrogen, phosphorus and potassium compound fertilizer, generally once a month, pay attention to thin fertilizer diligently, and wait for the flower buds to differentiate well, increase the application of phosphorus and potassium fertilizer, which is more conducive to flowering.

Precautions for blueberry fertilization

Blueberries are chlorine-sensitive crops, if the chloride concentration in the soil is too high, there will be chloride poisoning and death of blueberry trees, so when fertilizing blueberry trees, we must avoid using fertilizers such as ammonium chloride and potassium chloride, and try to use potassium sulfate compound fertilizers.

In addition, blueberries do not like nitrate nitrogen, the use of nitrate nitrogen is easy to cause the death of blueberry trees, so when planting blueberries, we should also avoid the use of ammonium nitrate, potassium nitrate, calcium ammonium nitrate and other fertilizers, you can use organic fertilizer, balanced potassium sulfate compound fertilizer, etc., which can promote the quality and yield of blueberries before sailing.

In blueberry production orchards, nitrogen, phosphorus and potassium fertilizers are mainly used in an appropriate ratio of about 1:1:1, and Weisheng 20-20-20 balanced water-soluble fertilizers are the main fertilizers.

1. Nitrogen fertilizer: The response of blueberries to nitrogen fertilizer is very inconsistent due to different soil types and fertility. With the increase of nitrogen fertilizer application, the yield decreased, the fruit size became smaller, the fruit ripening period was delayed, and the overwintering stripping was serious.

As a result, soil types like dark brown forests have higher nitrogen content, and nitrogen fertilization is not only ineffective but also harmful.

2. Phosphate fertilizer: In the phosphorus-deficient soil, the effect of increasing the yield of phosphorus fertilizer is significant. However, when the phosphorus content in the soil is high, the application of phosphorus fertilizer can not only not increase the yield, but delays the ripening of fruits.

Generally, when the level of phosphorus in the soil is less than 6 mg, an additional 15-30 kg of high-phosphorus water-soluble fertilizer is required.

3. Potash fertilizer: Potash fertilizer can significantly increase the yield of blueberries, and mature early, improve quality and enhance stress resistance. However, the excess does not increase the yield, but the fruit becomes smaller and the overwintering is seriously damaged, and the occurrence of magnesium deficiency occurs.