What fertilizer should be applied to the sugar orange just after harvesting the fruit?

Just after picking the fruit, the fruit will take away most of the nutrients of the tree, 80% of the water, 60% of the potassium, if not replenished in time, it has a great impact on the next year. In severe cases, it will also cause yellow trees. So this winter fertilizer must be lowered.

You can clear the garden first, and then fertilize. When clearing the garden, be sure to check the pH of the soil. Conditioning.

The soil of the grapefruit tree is best around pH=, too low will not work, it will cause black roots and rotten roots. Use a slightly replenished acidic conditioning solution to condition it. First, sprinkle a little compound fertilizer according to the combination of 2 3 taels of a tree with a micro supplement, and then rinse it underground with a micro supplement acidic conditioning solution.

Spring is generally to promote shoot fertilizer, that is, spring fertilizer, under normal circumstances, it is mainly to apply fast-acting nitrogen fertilizer in February, and the amount of fertilizer should be determined according to the actual growth of the plant. In addition, you can sprinkle some lime powder to neutralize the acidity of the soil, and use it together with spraying foliar fertilizer, which is mainly magnesium sulfate.

At the end of March to the beginning of April, in order to promote the flowering and fruiting of plants, this stage should be applied with compound fertilizer plus urea-based small fruit fertilizer, mostly outside the root fertilization method, more fruit and more application, less fruit and less application, the purpose is to improve the fruiting rate of the plant, the general plant yield of 25 kg, each plant should be applied with compound fertilizer kilograms.

Autumn application to promote shoot fertilizer, fertilization focus on cultivating fruiting mother branches, increase the total production of sugar oranges, fertilization combined with fast-acting nitrogen fertilizer, supplemented by rotting organic fertilizer, in the first 15 days or so to ensure that the growth of new shoots is more neat. In addition, you can also bury some dried peanut bran or dried chicken manure in deep soil two months in advance to play the role of attacking autumn shoots. Be sure to water.

In the maintenance process of the later stage of the plant, in order to promote the growth of sugar orange and enhance the ability of the plant to resist cold, fertilizer was applied before the differentiation of flower buds in November, mainly soil miscellaneous fertilizer, organic fertilizer and compound fertilizer, and mixed with phosphorus and potassium fertilizer, so as to prepare for the differentiation of plant flower buds and improve the yield of sugar orange.

The amount of fertilizer should be reasonably fertilized according to the actual growth of the plant, so as to facilitate the absorption and utilization of nutrients by the plant and improve the quality of sugar orange.

He's that kind of breed, and it's useless to put any fertilizer on it, unless he improves his variety.

Sugar oranges have entered the period, and the fruit is small, what kind of medicine and fertilizer are used?

Dear, hello for your query result is that sugar orange into the period, the fruit is small, then it is necessary to appropriately increase the compound fertilizer and phosphorus and potassium fertilizer to promote the fruit expansion and color change. In many cases, the main reason for the small size of the fruit is due to the lack of nutrients. Too little ditching and fertilization in spring, insufficient amount of top dressing, and too long time between top dressing, etc., will lead to the lack of nutrients and small fruit of sugar oranges.

And in many cases, it is not because of too little fertilizer, but because the socks are sold without the right fertilizer. For example, some fruit farmers will only apply urea, which is nitrogen fertilizer, when they are in a good place. If only nitrogen fertilizer is applied, it can only enhance the tree growth of sugar oranges, but not fruits.

If the branches and leaves of the fruit tree are too cracked, it will rob the growth nutrients of the fruit, resulting in the phenomenon of fruit drop and small fruit.

Fertilization of <> young trees: frequent and thin application, mainly nitrogen fertilizer, combined with phosphorus and potassium fertilizer, and appropriate supplementation of zinc fertilizer. Adult tree bud before the argument slag fertilization:

Nitrogen and phosphorus fertilizers are the main fertilizers, and the amount of nitrogen fertilizer can be reduced for trees with few fruits and strong trees in the previous year. Fertilization of flowers and fruits: generally nitrogen fertilizer + farmhouse fertilizer is the main stove.

Fertilization of strong fruits and shoots: It should be mainly based on organic fertilizer and chemical fertilizer. Overwintering fertilization after fruit picking:

It is mainly based on farmhouse organic fertilizer, which can be combined with compound fertilizer and bacterial fertilizer.

1. Choose strong sugar orange seedlings.

If you accidentally buy seedlings with weak resistance, then it is recommended to concentrate the weak citrus seedlings together for cultivation, and when they are cultivated into robust seedlings, they are transplanted in the field.

2. Ridge cultivation.

If planted on low-lying plots, ridge cultivation can be used to raise the groundwater level and ditch drainage to avoid waterlogging.

3. Soil modification. For plots with acidic or alkaline soil, soil modification can be carried out, such as using quicklime to improve acidic soil, while for areas with severely acidic or alkaline soil, soil modification is difficult, it is recommended to move citrus to plots with suitable acid and alkali for planting.

4. Fertilization. For plots with low organic matter content, a large amount of organic fertilizer containing humic acid can be applied at this time, which can increase the content of soil organic matter and is conducive to the nutrient absorption of sugar orange plants.

5. Prune to promote roots.

For such normal seedlings, and in the feeling of suitable plots, but still showing slow plant growth, then it is necessary to analyze the reasons in time, because the root system is not developed, and the nutrients absorbed are effective, which cannot meet the normal growth of sugar oranges. At this time, you can prune off some of the branches and leaves of the plant, and at the same time fertilize the roots, so that the plant can grow more roots and cultivate a strong root system.

Fertilization of sugar oranges should pay attention to methods and skills to achieve less fertilizer, high efficiency, economy and safety. Fertilization should be done at the root head and vertically outside the canopy. The soil is too dry and fertilized with reverse osmosis at the root causing dehydration and root damage, and the soil is too wet for fertilization, resulting in root hypoxia and root rot.

Therefore, fertilization should be done in such a way that the soil is not dry and not too wet. Nitrogen fertilizer should not be applied partially, and attention should be paid to increasing phosphorus, potassium, calcium and magnesium fertilizer. If the application of urea occurs at the end of the leaf or in the middle, then the orchard should stop drinking, then the orchard should stop the application.

Water and fertilizer made from human and animal manure and urine must be fully decomposed before it can be used.

The principle of fertilization in spring and summer is to apply frequently and thinly to avoid lack of fertilizer or excessive fertilization. Applying nitrogen fertilizer too early and too much in spring will make the spring shoots too long, and it will be difficult to set fruit between nodes, and it is easy to germinate summer shoots too early, and excessive summer shoots will cause a large number of fruit drops. Therefore, an important measure to control the early and excessive extraction of summer shoots is not to apply too much fertilizer in spring, and to do a good job of fruit preservation to suppress shoots.

Too much potassium fertilizer, too little boron deficiency, low zinc, low magnesium, low calcium, weak branches or insufficient light are more likely to crack the fruit. Fertilization in autumn and winter, first, to reapply basal fertilizer, in order to help restore the potential of sugar orange trees. The fertilization period is carried out about a week before and after the fruit picking of sugar oranges, and the basal fertilizer should be applied deeply, and the fertilization method is applied in a circular furrow, and a fertilization ditch with a depth of 40 cm and a width of 30 cm is dug at the dripping place on the outer edge of the canopy.

The types of fertilizers are mainly organic fertilizers or citrus fertilizers, supplemented by fast-acting nitrogen fertilizers. The amount of fertilizer used accounts for about 30% of the annual amount. For the severely weakened sugar orange fruit trees, it is necessary to renew the root system in combination with soil modification and fertilization.

That is, in autumn (October, November) or after thawing to spring (late February and early March) before budding, dig a ring-shaped trench about 60 cm deep and 30-40 cm wide from the trunk about 1 meter, and cut the inner wall of the ditch with the dug root system. Each plant is applied with 25 kg of fire soil ash or soil miscellaneous fertilizer, 50 kg of decomposed organic fertilizer, 15 kg of calcium, magnesium and phosphorus fertilizer, 100 kg of buried mountain green, and kilogram of lime, which are mixed with the surface fertilizer and filled into the ditch to promote the emergence of new roots. Fertilize the fruit trees with stable yield of sugar orange according to the conventional method of ditching and soil modification.

When fertilizing, ploughing, first from the outside to the tree ** ploughing can not hurt the main side roots close to the trunk to dig shallowly, with 10 cm as a degree, digging about 30 cm deep between the rows, turning the subsoil up, pressing down the topsoil, weathering the subsoil, and leveling the soil surface after fertilization.

Sugar orange is planted the most in Guangxi, sugar orange likes sulfur-based products, and the pure sulfur base 17-17-17 is used in the seedling stage of the agricultural rich world tower full water-soluble compound fertilizer potassium dihydrogen phosphate, which is nutritionally balanced, suitable for the growth period of sugar orange, and 17-5-29 high potassium type is suitable for use in the fruit expansion period, with uniform coloring and increased sweetness.

A small amount of water and fertilizer can be poured after the next month of planting sugar oranges, and it is best to apply foliar fertilizer dry in the first three months of seeding.

The first year is mainly to promote the survival of seedlings, fertilization to diligent application of thin application method, can be used diluted manure water or dilute urea water drenching, after the beginning of spring once drenched, after each tip two to three times, in order to promote the budding neat and stout.

A small amount of chemical fertilizer can be used in the germination, and farmhouse fertilizer is readily available.

Now if you want the fruit tree to grow well and the fruit is good, you need to supplement the corresponding elements, you can look at the micro-supplemental fertilizer.

After one week, fertilize frequently, apply thinly, mainly nitrogen fertilizer, with phosphorus and potassium fertilizer.

Fertilization principle: The needs of blood oranges for various nutrients should be fully met, and more organic fertilizers should be applied, and inorganic fertilizers and formula fertilizers should be applied rationally. Fertilization was guided according to the results of leaf analysis, orchard soil analysis, and phenological period of blood orange.

Fertilization method: mainly soil fertilization, combined with foliar fertilization. Methods such as annular furrow application, strip furrow application, hole application and soil surface fertilization are adopted.

Fertilization of young trees: diligent and thin application, mainly nitrogen fertilizer, with the application of phosphorus and potassium fertilizer, fertilization in spring, summer and autumn shoots for 5-6 times a month, each time each plant is applied ammonium carbide or urea catty. 1-3 year old young trees should be applied with 100-400g of pure nitrogen per plant, and the ratio of nitrogen, phosphorus and potassium should be:

Advisable. Adult trees should be fertilized four times, namely germination fertilizer, fruit preservation fertilizer, fruit strengthening fertilizer, and fruit picking fertilizer.

The amount of fertilizer is generally 2-3 kg of germination fertilizer, and a load of manure water; 1-2 kg of phosphorus and potassium fertilizer + 1 kg of chemical fertilizer; 1-2 kg of fertilizer + 1-2 kg of phosphorus and potassium fertilizer; Fruit fertilizer (base fertilizer) is mainly organic fertilizer, and 50-100 kg of organic fertilizer + 1-2 kg of chemical fertilizer is applied.

Moisture: Irrigate when the soil is dry and drain when water accumulates. Plastic pruning 1, principle. Adapt measures to local conditions, prune trees, promote proper suppression, ventilation and light, and three-dimensional fruit.

About a week after transplanting, the application of root-promoting water-soluble fertilizer is the early rooting of the tree body, more rooting, promote the good development of the root system, and make it quickly restore the growth rate.

<> for many farmers who plant sugar oranges, it seems that after picking sugar oranges from fruit trees, it will be very lucky, but in fact, it is not right to do that, after all, everyone's sugar orange flowers and trees will bear fruit again next year, so we must manage the methods well, and the key to the management plan is the following three points: 1. Immediately fertilize and water the sugar orange fruit trees; 2. Do a good job in cold protection and warmth; 3. Cut off unnecessary branches.

1. Immediately fertilize and water the sugar orange fruit trees.

First of all, the watering and fertilization of sugar orange fruit trees are all in the seedling link and growth and development link, but after everyone picks sugar oranges, they also have to fill the sugar orange fruit trees with water and organic fertilizer on time. Although picking the fruit will not cause much serious harm to the sugar orange fruit tree, it will indeed cause the outflow of nutrients from the sugar orange fruit tree, so after everyone picks it, you should immediately water the sugar orange fruit tree, and apply some thin fertilizer, so that the sugar orange fruit tree will grow a large number of fruits next year.

2. Do a good job in cold protection and warmth;

Secondly, the area of planting sugar oranges is generally all the central regions of the country, especially in the Sichuan region, which is particularly suitable for planting sugar oranges, but as we all know, the Sichuan region is relatively humid, especially in winter, although it is not necessarily snowy, but the humid climate is also very difficult. Therefore, after picking the fruit of the sugar orange fruit tree, we must keep the sugar orange tree cold and warm on time, and tie it twice with a rope to ensure that the sugar orange fruit tree is not frozen and cracked.

3. Cut off unnecessary branches.

In the end, when we pick fruits on sugar orange fruit trees, we must pay attention to the physical condition of the branches, some branches are actually damaged and helpless, or at the same time they are dry, this kind of branches must actually be cut off, otherwise not only absorb nutrients, but also the harvest is not very good, not as good as cutting them, so that other strong branches can absorb a lot of nutrients, but also more beneficial to next year's harvest.

Spring fertilizer is actually spring shoot fertilizer, the general fertilization time is from late January to early February, that is, about 15-20 days before spring shoot germination. At this period, the sugar orange is mainly applied with nitrogen fertilizer, and the amount of nitrogen fertilizer can be reasonably controlled according to the specific growth of sugar orange fruit trees to prevent spring shoots from growing.

It is necessary to compost reasonably according to the growth of the trees, and some soil fertilizer can be used.

To choose the right fertilizer, it is best to choose nitrogen fertilizer, supplemented by phosphorus fertilizer, which can accelerate fertilization and supplement the corresponding potassium fertilizer and calcium carbonate.