How to fertilize apples during the puffing period? What is the best fertilizer to use during the app

If you want to fertilize apples during the fruit expansion period, you can spray the prepared pesticide powder on the leaves of the apple tree with a sprayer during the fruit expansion period.

In general, it is recommended to apply less fertilizer or more phosphorus, or other fertilizers.

During the apple swelling period, you can apply some organic fertilizer and compound fertilizer.

Mix and use, but be careful not to overdose.

How do you fertilize apples apple apple 7? This is what the farmers who grow orchards know, and they all know to ask more orchard people.

Apple tree application of bulging fertilizer, it should be noted that the amount of fertilizer selected for different orchards is also different, the clay soil, fertilizer and water retention capacity is strong, can appropriately reduce the number of top dressing, some orchard soil belongs to sandy soil, fertilizer loss along the water is fast, for such soil, should be a small amount of chasing, diligent pursuit.

It's 11 o'clock and you can go back with me, yes, you can eat the animal's feces or something, and you can give him the feces you can.

The apple seven fertilization, you better not rush to expand the fruit, continue to fertilize, it is best to rush, that is, fertilize in the first half of the apple planting and picking period, which is good for all aspects of the apple.

Apples are a very popular fruit, but growing them requires a certain amount of effort and patience. The swelling period of apples is one of the important stages of apple growth. Therefore, it is necessary to give apples proper fertilizer.

During the enlargement period of apples, fertilizers with high potassium content can be used. Potassium is one of the key elements for plant growth and fruit development. Apples need a lot of nutrients in the process of rapid growth and expansion, especially potassium.

In addition to potassium fertilizers, phosphate and nitrogen fertilizers can also be used during the apple expansion period. Phosphorus is a very important nutrient that plays an important role in fruit expansion and yield. Nitrogen starvation can speed up apple growth, but too much nitrogen fertilizer can cause fruit growth to grow too fast, affecting fruit quality and taste.

In addition, the following points need to be paid attention to in the process of using fertilizers:

1.Be sure to add the fertilizer according to the instructions for use to avoid excessive fertilizer;

2.Fertilization should be stopped in time to avoid chemical residue problems;

3.Care is also needed with the use of pesticides, as excessive use can have adverse health effects on apples.

There are several important stages in the growth process of apples, such as flowering and fruit setting, bagging, picking, etc. Apples grow very fast before and after bagging. Then what kind of fertilizer is used for the apple puffing period? How to fertilize? Let's find out.

What fertilizer is used during the apple puffing period?

1. The principle of fertilization The growth of apple trees is different, and the fertilization should be treated separately.

2. Top dressing should pay attention to the fact that for orchards with clay soil, although water and fertilizer are not easy to lose, the air permeability is slightly poor, and more farm fertilizer needs to be applied to increase the air permeability of the soil.

3. Potassium is one of the indispensable elements for apples from the swelling stage to the ripening stage, with rich phosphorus and potassium fertilizer content, sweet apple taste, good color and high yield.

4. Fertilization method.

1) Foliar fertilization.

Phosphorus, potassium and foliar fertilizers combined with calcium, magnesium, zinc, boron and other trace element fertilizers, and alternately sprayed during the apple expansion period, can effectively promote apple expansion, discoloration and crack resistance. Calcium can improve the toughness and luster of the peel, magnesium can improve the photosynthesis of leaves, promote the accumulation of dry matter in the fruit, and boron can promote the transformation of sugar in the fruit, promote the coloring of the fruit, and increase the sugar content of the fruit.

2) At the apple swelling stage, it is not only necessary to supplement phosphorus and potassium fertilizers on the foliar surface, but also to apply a large number of elemental fertilizers and microbial fertilizers. In this way, the fruit swells rapidly, and at the same time, potassium can promote fruit expansion, increase fruit sweetness, improve hardness and color, and improve the quality of fruit.

5. Precautions.

Pay attention to the supplement of potassium, calcium, boron, magnesium and other elements, potassium plays an important role in the growth of apples, potassium can promote the increase of sugar content in apples, improve the taste and fruit quality of apples. In addition, trace elements such as boron, magnesium, zinc, molybdenum, copper, and calcium are also required. Magnesium is one of the essential elements for the synthesis of chlorophyll in plants, and in order to prevent magnesium deficiency in apple trees, it should be sprayed every 7-10 days from June to August.

Boron is not only used more during the flowering period, but also during the fruit expansion stage. Calcium is as important as boron, and 70% of the calcium needed by apple trees is absorbed during the apple bulging stage. Foliar calcium sprays are commonly used.

The above is an introduction to fertilization during the puffing period of apples. To grow apple trees, fertilizer is indispensable if you want to get high-quality and high-yield apples. In order to improve the quality and yield of fruit expansion stage, the above fertilization management should be done.

Top dressing during the rapid expansion of apples: This topdressing is mainly to accelerate the rapid expansion of apples and improve the expansion rate of fruit cells. To increase yields, overcome the body of the tree"Big and small years", which plays an important role in promoting flower bud differentiation.

This period is carried out on the basis of the second top dressing, after physiological fruit drop. The type of fertilizer is still mainly nitrogen, and the combination of phosphorus and potassium is the most ideal. According to the survey, the rapid expansion period (peak growth) of apple fruits varies depending on the region and variety.

Little years"Trees should focus on top dressing before and after germination. It should be noted that the middle and late topdressing of fruit trees should not be too late. The number should not be too much.

In order to avoid causing the growth of new shoots in late autumn, reduce the nutrient accumulation level and cold resistance of the tree. It also affects the coloration and fruit quality of the variety. Depending on the topdressing, the soil conditions of the orchard are different, and the topdressing should also be treated differently.

The fertilizer and water retention capacity of the sandy land is poor, so it is necessary to chase less frequently, and do not water a lot of water after the top dressing, so as to cause water and fertilizer leakage in tin. Saline-alkali land, the available phosphorus content in the soil is low, and phosphorus fertilizer should be added (soil application or extra-root topdressing) when topdressing.

It is better to use urea fertilizer during the apple expansion period, which can make the apple grow larger, and the ring fertilization method is generally used to carry out the corresponding amount of fertilization according to the instructions.

You can use phosphorus and potassium fertilizers, because the higher the content, the sweeter the apples. Fertilize the foliar surface so that the fruit will be fuller in the later stage.

Apple should be applied basal fertilizer before the fall of leaves in autumn, base fertilizer as the basic nutrients, the main fertilizer includes humic acid fertilizer, compost, manure and crop straw, green manure, etc., to increase nutrients for apple trees, promote flower bud differentiation and new shoot growth has a good effect. The application of basal fertilizer after defoliation and before germination in spring has a small effect, but it is essential and should be fully ripe. Top dressing should be carried out before and after flowering, flower bud differentiation, fruit expansion and fruit growth stages of apples, and nitrogen fertilizer should be applied appropriately before and after flowering.

It can improve the fruit setting rate and promote the development of young fruits, and nitrogen fertilizer can not be applied too much, and compound fertilizer can be applied when the flower buds are differentiated to accelerate the expansion of young fruits. In the later stage of fruit growth, the application of appropriate amounts of potassium and phosphorus fertilizers can improve the color and sugar content of the fruit. In the stage of fruit expansion and flower bud differentiation, the balance of nitrogen, phosphorus and potassium should be promoted, and the compound fertilizer of trace elements such as iron should be added.

In the later stage of fruit growth, high K, low N, and medium P compound fertilizers should be applied. From germination to shoot growth, the growth is accelerated, and there is a stage with a large amount of nitrogen to be applied, and the nitrogen in this period is mainly stored in the tree.

In addition, the nitrogen absorbed by the roots from the soil, the lack of nitrogen at this stage will affect the growth, flowering, fruiting and new shoots, and nitrogen should be applied in early spring on the basis of strengthening the nutrient increase in the previous year to meet the flowering of apple trees and the exertion of soil moisture content. Fertilizing the soil due to lack of water is harmful because the nutrient concentration is too high for the fruit tree to absorb and utilize. Fertilizer loss in waterlogged or rainy areas seriously reduces fertilizer utilization.

Therefore, fertilization should be based on local soil moisture changes or in combination with water and fertilizer.

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It should be after the apple tree falls in the fall. You can fertilize the fruit trees. The second fertilization should be done in late spring and early summer. The apple tree just bears small fruit. At this time, apple trees need a lot of nutrients and need to be fertilized in time to provide nutrients to the apples.

Fertilize the apple tree at the bud break, before the apple tree blooms, in mid-May, in the morning after the rainy period, and in September with some organic fertilizer.

Summary. Hello, I have helped you find the result; After apple fruit set, apply grams of diammonium phosphate or urea per fruit, and then apply grams of potassium sulfate or magnesium sulfate per fruit during the rapid growth period of the fruit, and organic fertilizers can also be used. When fertilizing, care should be taken to avoid excessive application of fertilizer, so as not to cause damage to the apple tree.

Apple trees need to be fertilized after fruit setting to ensure the quality and yield of the fruit.

Come on. Hello, I have helped you find the result; After the apple is set on the fruit, apply diammonium phosphate or urea to each fruit, and then apply potassium sulfate or magnesium sulfate to each fruit during the rapid growth period of the fruit, and organic fertilizers can also be used. When fertilizing, care should be taken to avoid excessive application of fertilizer, so as not to cause damage to the apple tree.

After fruit set, apple trees need to be fertilized to ensure the quality and yield of the fruit.

Is that still <> you?

Hello dear, what do you want.

Hello dear, do you want to know what brand of fertilizer you need?

Hello, I have helped you find the result; Fertilizer 1, gibberellin: spraying 50mg L of gibberellin on varieties such as Guoguang and Marshal in the flowering period of apple bush branches can improve the fruit setting rate. 2. Triacosanol:

For some apple varieties with poor coloration, such as Changfu Eggplant Ruler No. 2 and Beidou, the spraying of triasanol during the flowering period can improve the fruit setting rate and promote the later coloring of the fruit. 3. P-chlorophenoxyacetic acid: spraying 20mg L p-chlorophenoxyacetic acid + urea at the apple flowering stage can improve the fruit setting rate of apple trees.

Fertilization is generally divided into two types: accumulation fertilizer and top dressing, and the specific time depends on the variety, the law of fertilizer demand, and the growth and fruiting of the tree. In general, it is advisable to fertilize 4 times a year

1. Pre-flowering fertilizer or germination fertilizer (early April).

2. Post-flowering fertilizer (mid-May). These two fertilizers can effectively promote germination and flowering, and prevent the production of stupid burning and defertilization due to flowering consumption of a large amount of nutrients, improve the fruit setting rate, and promote the growth of new branches.

3. Flower bud differentiation and young fruit expansion fertilizer (late May to early June). The top dressing is to meet the needs of fruit expansion, branch and leaf growth and flower bud differentiation. Potassium fertilizer was the main fertilization.

4. The best time to apply fertilizer is autumn (early to mid-September). In order to give full play to the fertilizer effect, the phosphate fertilizer should be stacked and rotted together with organic fertilizer, and then mixed and applied.

Fertilization is an important part of the integrated management of apple orchards. Fertilizers are divided into two categories: base fertilizer and top dressing.

The base fertilizer should be applied after the harvest of medium and late ripening apple varieties until the leaves are dormant. Early application of basal fertilizer is conducive to the accumulation of nutrients stored in the tree, the early restoration of tree vigor and the improvement of the overwintering ability of the tree, and is also conducive to the recovery of root growth and flowering and fruiting in the second year. According to the organic matter content of pigsty manure and compost manure in China, it is estimated that the organic matter content is generally 10% to 20%, and about 500 2000 kg of the above base fertilizer needs to be applied to each mu of apple orchard every year.

In order to improve and prolong the photosynthetic capacity of apple leaves in late autumn, fast-acting nitrogen fertilizers such as urea or ammonium sulfate can be added to the base fertilizer. Phosphorus and potassium are easy to become insoluble in the soil or fixed by the soil, reducing the fertilizer efficiency, and are generally mixed with organic fertilizer for basal fertilizer deep application.

Top dressing is applied on the basis of sufficient basal fertilizer, mainly to supplement the nutrient needs of each growth center of apples in a timely manner, and fast-acting fertilizers are used. Generally, it is carried out 1 3 times a year. Including flowering and fruiting stage, flower bud differentiation stage and fruit expansion stage several times of top dressing.

For example, if the basal fertilizer is less applied in autumn, the nutrient level of the tree body is low, and the tree is weak, for the tree with many flower buds and poor quality, and the fruit is easy to overdose, it is necessary to apply pre-flowering fertilizer and fast-acting nitrogen fertilizer before germination. Otherwise, it can be left unpunished. For large fruit-bearing trees, it is necessary to focus on topdressing during the spring shoot stop period and the rapid fruit expansion period, so as to promote flower bud differentiation and improve the nutrient reserve of the tree.

On the contrary, for small trees with few flowers, nitrogen fertilizer should be applied before germination and flowering, so as to increase the fruiting rate as much as possible, strengthen the vegetative growth of the year, and relatively reduce the number of flower buds formed in the current year. The top dressing at the flower bud differentiation stage should be combined with nitrogen, phosphorus and potassium, while the top dressing at the fruit expansion stage was mainly phosphorus, potassium and fertilizer, which was conducive to improving the quality of the fruit. In addition, when the root absorption capacity is weak and the development of aboveground flowers and fruits is in urgent need of nutrients, or when the plant shows symptoms of nutrient deficiency, the method of foliar topdressing outside the root can also be applied.

Generally, 2 hours after spraying, the fertilizer can start to be absorbed and utilized.

Number of top dressing: In general, the young trees are applied with pure nitrogen kilograms per plant throughout the year, the trees in the growth and fruiting period are applied in kilograms, and the trees in the fruiting period are applied in kilograms, and the trees with more fruits can be increased to kilograms. The amount of phosphate fertilizer was calculated according to P2O5, and kilograms were applied to trees at the peak fruit stage.

The amount of potassium fertilizer is calculated based on K2O, and kilograms are applied to trees in the peak fruiting stage. Adult fruiting trees are usually measured by yield, i.e., kilograms of pure nitrogen, phosphorus (P2O5) kilograms, and potassium (K2O) kilograms per 100 kg of fruit. When applying the applies, it is also necessary to consider the soil conditions of the orchard, as well as the differences in apple varieties and rootstocks.

It is important to note that the application of nitrogen fertilizer on nitrogen-deficient soils has a very significant yield increase effect, but excessive nitrogen application will reduce the yield increase benefit. The usual concentrations for root topdressing are as follows: urea, ammonium sulfate, superphosphate 1% 3%, potassium sulfate or potassium chloride, potassium dihydrogen phosphate, borax, zinc sulfate 3% 5%, ferrous sulfate, calcium nitrate.