What fertilizer is good for fruit trees, and what fertilizer is best for fruit trees

<> fruit trees are generally better to apply superphosphate, urea, diammonium phosphate, potassium sulfate, organic fertilizer, soil miscellaneous fertilizer and other fertilizers. Chemical fertilizer can only play a role in supplementing nutrients for plants, if only chemical fertilizer is applied for a long time, it will make the soil compact, and make the nutrients in the soil out of balance, so when applying chemical fertilizer, it should be applied together with organic fertilizer or soil miscellaneous fertilizer.

1. What kind of fertilizer should be applied to fruit trees?

1. It is better to apply urea, diammonium phosphate, superphosphate, potassium sulfate, organic fertilizer, soil miscellaneous fertilizer and other fertilizers for planting fruit trees. Chemical fertilizers can only play a role in supplementing nutrients for fruit trees, but cannot improve the structure of the soil, if only chemical fertilizers are used for a long time, it will cause the phenomenon of soil compaction, so that the nutrients in the soil are out of balance.

2. When using chemical fertilizer for fruit trees, it should be applied in conjunction with organic fertilizer or soil miscellaneous fertilizer, that is, organic fertilizer or soil miscellaneous fertilizer is the main fertilizer, supplemented by chemical fertilizer (chemical fertilizer can be applied as top dressing, such as fertilizer supplementation during the critical period of growth and development of fruit trees), so that it can have an immediate effect.

3. When the fruit tree has the symptoms of nutrient deficiency, it can be supplemented by more topdressing fertilizer or topdressing outside the roots, but the number of topdressing should be determined according to the growth changes of the fruit tree in the annual cycle, and under normal circumstances, 3-5 times can be topdressed.

2. When to fertilize fruit trees

1. Two weeks before flowering.

At this time, the main application of available nitrogen fertilizers, such as urea and other fertilizers, can promote the growth of fruit trees, and at the same time enhance tree strength and increase fruit setting rate.

2. After the flowers fall.

At this time, the main application of fast-acting nitrogen fertilizer can supplement the nutrients consumed by the fruit tree during flowering and fruit setting, and at the same time reduce the probability of fruit drop, in addition to ensuring that the new shoots can grow vigorously.

3. After physiological fruit fall.

At this time, the fast-acting nitrogen, phosphorus and potassium fertilizers are mainly applied to the fruit trees to promote the growth of the root system, and at the same time, it is also conducive to flower bud differentiation and fruit expansion after fertilization.

4. Autumn shoots stop for a long time.

At this time, the fast-acting nitrogen fertilizer is mainly applied first, and some phosphate fertilizer and potassium fertilizer should be applied at the same time to promote the growth of the root system and improve the photosynthetic capacity of the leaves.

5. After fruit picking.

At this time, the application of fast-acting nitrogen fertilizer is the main thing, and at the same time, it is necessary to apply some potassium fertilizer, which can not only improve the photosynthetic function of the leaves of the fruit tree, prolong the life of the leaves, but also improve the nutritional level of the fruit tree, promote the growth of the root system of the fruit tree in autumn, and enrich the flower buds.

Fruit trees can generally use nitrogen fertilizer, potassium fertilizer, phosphate fertilizer, farm fertilizer or compound fertilizer. Chemical fertilizers can only play a role in supplementing nutrients for plants, and chemical fertilizers should be applied together with organic fertilizers.

Before the arrival of winter, wrapping the trunk with a straw rope can prevent the cold air from harming the fruit trees to a certain extent.

When the weather is cold, seal the rhizomes of fruit trees tightly with soil and paint the trunks of fruit trees white to alleviate the damage caused by the change in temperature.

When the fruit tree grows, it will definitely bear fruit, and it needs a lot of nutrients at this time. Nitrogen and potassium fertilizers are mainly needed at this time of fruiting and must be replenished in a timely manner. In the two periods of flowering and fruiting, fertilization is the most important.

If the fertilization is not applied in time, it will definitely cause some nutrient deficiencies and affect the natural yield.

Fruit trees are also fertilized after harvesting. Fruit ripening takes away many of the nutrients in the fruit tree. If you don't supplement nutrients at this time, it will definitely affect the growth of fruit trees in the coming year.

After the fruit is harvested, it is time for the fruit trees to recuperate, so this time only enough fertilizer can be buried in the soil.

Organic fertilizer applied to fruit treesA large number of elementsFertilizer, biological fertilizer, mediumTrace elementsFertilizer is best.

1. Organic fertilizer

Organic fertilizers are of great significance in improving the quality of fruits. After organic fertilizer is applied to the soil, organic matter can effectively improve the physical and chemical condition of the soil, mature the soil, enhance the fertilizer retention capacity and buffer capacity of the soil, and create good soil conditions for the growth of fruit trees.

At the same time, after the decomposition of organic fertilizer, it provides energy and nutrients for soil microbial activities, promotes microbial activities, accelerates the decomposition of organic matter, and produces active substances that can promote the growth of roots and improve the quality of fruits.

Pruned branches, fallen leaves, weeds and crop straw from fruit trees can be crushed and decomposed to be used as organic fertilizer.

2. A large number of elemental fertilizers

Nitrogen, phosphorus and potassium are the three essential elements of fruit trees, and the use of these three elements has been widely recognized and accepted by the majority of fruit farmers, and has played an important role in improving fruit yield.

It should be pointed out that a large number of elements not only refer to nitrogen, phosphorus, and potassium, but also include carbon, hydrogen, and oxygen. Carbon, hydrogen, and oxygen are also important, as they are obtained from air and water, respectively. Therefore, the orchard should not be closed, it must be ventilated and lighted, and the watering should be timely, and attention should be paid to maintaining the appropriate moisture of the soil.

3. Biological fertilizer

At present, there are many types of biological fertilizers, and the main ones that have a good effect on fruit trees are phosphorus, potassium and accelerated decomposition, and can enhance the decomposition ability of organic matter and soil permeability.

4. Medium and trace element fertilizers

Medium elements refer to silicon, calcium, magnesium, sulfur, the effect of fruit trees is second only to a large number of elements, in recent years studies have shown that medium elements to improve the resistance of trees and fruit quality play an important role, should be highly valued, should not only be treated as dispensable trace elements. Especially silicon.

It has a good effect on fruit trees and is currently receiving more and more attention.

Trace elements refer to iron, boron, manganese, copper, zinc, molybdenum, and chlorine, which are essential for fruit trees. Although trace elements are required in small quantities for fruit trees, they are indispensable.

Often, fruit trees have problems of one kind or another, and in many cases they are caused by the lack of an essential element. Therefore, it is very important to make up for the lack of trace elements in an appropriate amount to improve the yield and quality.