When is it better to promote citrus flowering?

The citrus flower bud differentiation period is from mid-November to January of the following year, and the quantity and quality of flower bud differentiation have a great impact on the yield of the next year. Problems with traditional methods of promoting flowers:

1.Only the method of spraying regulator or circumferential cutting is used, although the amount of flowers is large, there are relatively many weak flowers and deformed flowers, especially the fruit trees with weak tree strength and more fruit hanging in the year, which is easy to cause the tree to aggravate the weakening and yellowing. 2.

Failure to timely supplement zinc, boron and magnesium, the most critical nutrient element for flower bud differentiation, or late supplementation, resulting in late nutrient accumulation and transformation.

How can citrus promote flowers more scientifically?

1.It is recommended to start foliar spraying of zinc, boron and magnesium at the autumn ripening period of citrus to promote the flowering of strong flower buds and ensure the quality of flowering and fruit setting in the coming year, and the use method is 1000 times of micro-flowering power, spraying twice in a row, with an interval of 10-14 days. For trees with a large amount of fruit hanging and late fruit picking, it is recommended to spray 3 times.

It can effectively promote the differentiation of flower buds, and the flowers are more and the flowers are neat.

2. Orchards with weak trees and many fruits must be applied in large quantities through the root system to meet the needs of fruit trees. You can sprinkle micro supplement power (rich in calcium, magnesium, zinc, boron) 2 two trees before and after rain, such as continuous drought, according to the experience of fruit farmers, you can rush to apply 15 kg of micro supplement root force calcium + micro supplement energy kilograms, drench 200 trees, protect the roots and strengthen the tree, that is, promote the final expansion of the fruit, and supplement the flower bud differentiation nutrition.

3. When applying winter fertilizer after fruit picking, each tree should be buried with 2 taels of micro-supplementation force to balance the trace elements in winter fertilizer.

At the same time, spray 2 times of micro-supplementation of 1000 times (to promote flowering) + 1000 times of micro-supplementation of Bili (to protect leaves) to further strengthen the nutrition of flowering.

Citrus every autumn shoot ripening stage, physiological flower bud differentiation begins, this time to do a good job of promoting flowering, is conducive to the early accumulation of flower nutrients in the coming year, and zinc supplementation can promote the formation of flowering hormones, boron supplementation can promote fertilization and fruiting, is conducive to improving the quality of flowers, supplement zinc boron leaf spray micro flower supplement power to accumulate flower bud differentiation nutrients, and then continue to do a good job in preventing weak flower deformity flowers after citrus fruit picking, continue to supplement zinc boron.

Citrus planting is different, flowering time is also different, Guangdong, Guangxi and other places in 2-3 months flowering, Fujian, Sichuan, Chongqing, etc. in 3-4 months, and Zhejiang, Hunan, Jiangxi, Hubei and other places in 4-5 months of flowering, which slag cherry citrus like higher temperature, the temperature is best between 20-30 degrees, for the light requirements are particularly high, need to be maintained in the sunny place, so as to make the taste sweet.

Citrus flowering time.

Citrus is a plant of the Rutaceae family, and if it is planted in different places, the flowering time is also different, Guangdong Li Cong, Guangxi and other places bloom in February and March, Fujian, Sichuan, Chongqing, etc. bloom in March and April, and Zhejiang, Hunan, Jiangxi, Hubei and other places bloom in April and May.

Citrus flowering period maintenance.

Citrus likes higher temperatures, the temperature is best between 20-30 degrees, the requirements for light are particularly high, and they need to be maintained in a sunny place, so as to make the taste sweet, the demand for water is larger, and irrigation needs to be paid attention to in the dry season.

Watering during flowering. Generally speaking, the citrus flowering period is 4-5 months, as far as the rain situation is concerned, it is the rainy season at this time, the rain is generally more abundant, which can meet the needs of citrus flowering and fruit set, and does not need additional irrigation, but the orchard should do a good job of clearing the ditch to prevent water accumulation, and at the same time, half of the flowers and the flowers are basically over, in case of rainy weather, it is necessary to shake the flowers to avoid stagnant water on the petals.

Fertilize during flowering. Citrus does not need to be fertilized during the flowering period, and if it is fertilized at this time, it is easy to cause it not to bloom or cause flower drop.

Pruning during flowering. Citrus does not need to be pruned during flowering, it is generally pruned after the flowering period, and if there are dead branches and leaves, they also need to be cleaned up to reduce the appearance of pests and diseases.

Citrus flowers are processed.

Citrus ushered in the first physiological fruit drop period about half a month later, therefore, after the citrus flowers, it is necessary to actively spray foliar fertilizers, trace elements, etc., so that the fruit can get enough nutrients as much as possible, reduce the occurrence of fruit drop, and achieve the desired yield.

After the citrus flowers, into the fruit growth period, it is easy to be infected with various diseases, such as citrus brown spot, citrus anthracnose, citrus sand peel disease and other diseases, therefore, after the citrus flowers, in addition to supplementing nutrition, reducing flower and fruit drop, active and effective beam control, the occurrence of diseases and pests, is also very important.

Citrus flowering fertilization should be based on nitrogen, phosphorus and potassium compound fertilizer, and the old supplement of some trace elements, but fertilization should not be too much or too often, nor should be applied during flowering, to choose to add before flowering, and the use of ditch method or ring ditch method watering, pay attention to thin fertilizer diligent application, can not use raw fertilizer and thick fertilizer.

1. Phosphorus and potassium fertilizer

In the flowering period of citrus, the fertilizer used is no longer the organic fertilizer and nitrogen fertilizer used in the growth period, but the use of phosphorus and potassium compound fertilizer, you can use some nitrogen fertilizer but not too much, and according to the actual situation of the plant, some trace elements should be added as a supplement to ensure the quality of the fruit.

2. Fertilization method

For adult citrus planted in a large area, a ditch should be dug between the rows and the return of the type to fertilize the fertilization method, and for a single plant, a ring ditch can be dug around its roots and fertilized using the ring ditch method.

3. The principle of fertilization

When applying dust and fertilizer to citrus, it is necessary to follow the principle of moderate and appropriate amount, so that thin fertilizer is applied frequently, and the fertilizer can only be watered after dilution, and can not use raw fertilizer that has not been matured, or fertilizer that is too heavy and too strong, nor can it use fertilizer that will pollute the soil.

4. Precautions

During the flowering period of citrus, there is generally no need to fertilize, and can only be topdressed before this, otherwise the plant will be fertile to give birth to a large number of new flower buds, which will seize nutrients with the mature flowers, resulting in a large area of flower buds and flower drops, so that the flowers can not bear fruits, and the final fruit yield will decline.

Citrus is a fruit that is marketed in autumn and winter, and it has a sweet and sour taste, and it has a good taste, and it is very popular in winter when there are few fruits. However, for fruit growers, it also requires a certain amount of time and energy in planting management, especially during the clean flowering period. So do citrus need fertilization during flowering?

During the flowering period of citrus, there is no need for fertilization. If you fertilize it during the flowering period, it is easy to cause it not to bloom, or to cause flower drop. So why is that?

Because if you fertilize before flowering, it is easy to cause vegetative growth and vigorous growth, and it is easy to give birth to new flower buds, and the growth of flower buds will compete for water and fertilizer with flower growth, resulting in flowers because they do not get sufficient nutrients, so that the flowers can not bloom, and it is easy to fall off after opening, resulting in low yield.

So when should you start fertilizing? Generally, fertilizer is applied well before flowering, and fertilization before flowering can promote fruit trees to become more pregnant and grow more flower buds, so that more flowers will be produced. Citrus trees will not bloom when they lack fertilizer, and as long as they do, then it proves that they are not short of fertilizer, and there is no need to fertilize it, which is fertilization and will cause flower drop.

Flowering management. Although there is no need to fertilize during the citrus flowering period, but the management can not be relaxed, in the citrus flowering period, the most important management is pruning, in order to make the fruit trees better exposed to the sun, more fully absorb nutrients, flowers can bloom better, it is necessary to prune the citrus trees. In some places where the branches grow densely, you can prune off unimportant branches and branches that do not bloom.

In addition, the branches with pests and diseases and damaged branches should be pruned off in time to avoid the invasion of pests and diseases, and the cleaned branches should be taken out and burned.

Flower pollination. During the flowering period of citrus, in addition to pruning, it is necessary to observe the pollination of the flowers, and if the flowers are not pollinated well, its fruiting rate is not very high. In the case of fine weather, it is generally necessary for bees to mainly pollinate, and if the temperature is not enough, the bees will not come out to move, and artificial pollination is required.

In addition, frequent pollination during the flowering period can also affect pollination, which also requires manual pollination.

Fertilization can be applied. However, it is important to apply nitrogen fertilizer before flowering and potassium fertilizer after flowering, because potassium fertilizer can make the flowers bloom more vividly and effectively.

No fertilization is required. If it is fertilized, it will cause it to not bloom or fall flowers. It is best to apply fertilizer well before flowering. It can encourage fruit trees to produce more flower buds.

During the flowering period of citrus, there is no need to fertilize, if the citrus is fertilized during the flowering period, then it is easy to cause it not to bloom, or cause flower drop.

Nutrition can be supplemented slowly or by foliar sprays. After all, the more fertilizer is not the better, improper fertilization will cause adverse effects such as falling flowers and fruits.

Citrus flowering requires irrigation or not, depending on the situation.

Citrus does require a lot of water for flowering and fruit set, and the lack of water during flowering can lead to poor flower quality, uneven flowering, and even flower drop. However, if there is a long-term rainy weather, coupled with the cold spring, the orchard is waterlogged, and the water is excessive, which will promote the growth of new shoots too vigorously, and will also lead to problems such as stunted flower development, serious flower fall, and high incidence of diseases.

Citrus can not be irrigated during the flowering period, because irrigation during the flowering period is easy to cause pollen loss, and the yield of citrus will be reduced after pollen loss, and irrigation during the flowering period is also easy to cause the plant to be diluted, and the citrus will ripen slowly.

Water fertilizer can be applied during the flowering period of citrus.

1. Spring is an important season for citrus growth and flowering, and it is also the period with the largest amount of nutrients consumed in a year, and it is also the critical season when various nutrients need to be supplemented the most, so as to ensure the normal growth and flowering and fruit setting of citrus trees.

2. The flowering period of citrus is large and short (about 15 days), at this time the nutrients consumed by the tree will be very large, even if the base fertilizer has been applied before the year, but due to the low temperature during the flowering period, the germination of citrus roots and the absorption capacity of nutrients are still relatively weak and slow, and it is difficult to meet the nutrients.

3. The flowering period of citrus is also the period of spring shoot growth and development, and the growth and development of spring shoots will also consume part of the nutrients of the tree, and it is difficult to supplement a large amount of nutrients consumed by flowering for a while.

1. Circumcision to promote flowering.

The main purpose is to control the root activity of the underground part and reduce the backflow and depletion of nutrients in the aboveground part. The object of jujube dismantling and circumcision is to circumferentially cut the vigorous hanging fruit trees. Circumcision site:

The main trunk of the juvenile tree is circumferentially cut, and the large main branch of the osmanthus fruit tree is circumferentially cut during the peak production period. The depth of circumcision should be to cut the phloem without injuring the xylem.

2. Break the roots and promote flowers.

The purpose of this study was to control water uptake and regulate the growth relationship of shoots, and to increase the accumulation of organic nutrients in shoots and leaves. The location of root breaking should be selected to be carried out in the root growth area. The specific operation is generally carried out around 20-30 cm outside the canopy dripping water, and the soil is hoeed and broken off.

In that year, the tree with more fruit was hoeed about 10 cm shallowly, the tree with less fruit was hoeed about 15-18 cm deep, and the tree without fruit could hoe about 20 cm deep. After hoeing, the root is exposed for 4-5 days, and the effect of promoting flowering is better.

3. Fertilize and promote flowering.

The purpose is to increase the uptake of nutrients by the root system and ensure that there is enough nutrient supply in the next year's flowering period. The principle of fertilization is mainly to apply more organic fertilizer, with the application of an appropriate amount of potassium sulfate compound fertilizer. Fertilization method:

Combined with the measures of root-breaking and flowering-promotion, 6 kg of chicken manure fertilizer, 1 kg of phosphate fertilizer, and 1 kg of potassium sulfate compound fertilizer are generally applied to each fruit tree. The application of potassium fertilizer can be increased to kilograms for trees with vigorous growth, and less can be applied to trees with weak growth and yellowish leaves, and kilograms per plant should be applied.

4. Spray hormones to promote flowers.

The purpose of hormone spraying on hanging fruit trees is to regulate the growth relationship between the aboveground and underground parts by spraying plant growth regulators. Spraying method: Choose paclobutrazol, spray foliar 1-2 times with 75 kg of water per bag, and spray once every 15 days.

Spray the foliar surface of the stool once with a concentration of 60-80 ppm 2,4-d (1 gram of powder or 5 tablets mixed with 20 kg of water), and the effect is better.

1.Citrus is susceptible to pests and diseases during the flowering period, and common insect pests include aphids, thrips, spider mite, and psyllids.

2.Diseases include anthrax, canker, brown spot, scab, etc.

3.However, some drugs are not available during flowering, and it is recommended to do a good job of prevention and control before flowering.

4.7 to 15 days before flowering, spray imidacloprid, pyraclostrobin, ethazole nitrile, and zinc thiazole, and the specific medication is determined according to the actual situation of the orchard.