I have been growing sugar oranges on the hillside for 10 years, why is the fruit setting rhythm so l

The low fruit setting rate of your sugar orange should be analyzed for specific reasons, and there is no specific situation to introduce it, but only to estimate and explain.

How about the soil in which the tangerines are planted, are there still people around them, are they growing well, and others are not good at planting, so we must first check the variety, soil, and hydrology. Others plant well, that's your cultivation problem.

How about the growth and development of the canopy, the poor growth and development of the canopy is a fertilization problem, the growth and development of the canopy is very vigorous, it is estimated that it is the main problem, the amount of nitrogen fertilizer is large, the crown is lush, the flower buds are less differentiated, and the flowers and fruits fall seriously, which may be in vain. It is necessary to prune the branches and leaves to make the crown of the tree transparent, cut off the long branches to make the top advantage, cut off some roots in deep tillage, reduce nitrogen fertilizer absorption, and increase the application of potassium dihydrogen phosphate. If the flower buds are well differentiated and the flower and fruit fall are severe, the bark can be peeled off on the main trunk before flowering to adjust the carbon and nitrogen ratio (C n) of the canopy.

Of course, there may be other reasons, but this is just an analysis, and we can continue to discuss it if we can introduce it further.

If you want to improve the fruit set rate, there are some aspects that you need to do: after the fruit is harvested, you need to prune the fruit trees properly; The fruit grows on new branches.

Apply more fertilizer (especially nitrogen fertilizer) when pumping new branches in the coming year, and properly screen fruit trees when they bloom and bear fruit to ensure quality!

According to the sand sugar oranges.

In the warm temperate zone along the Tropic of Cancer in Guangdong and Guangxi, it is best to plant tangerines and has become the main production area of tangerines in these areas.

The growth, flowering and fruiting of tangerine trees are closely related to temperature, sunlight, water (humidity), soil, and environmental conditions such as wind, altitude, topography and aspect, which have the greatest impact on temperature. Even the difference in temperature sometimes has very different results. The temperature required for the growth and development of sugar oranges.

Flower bud differentiation in autumn requires a diurnal temperature of about 20 and 10 respectively, and the soil temperature for root growth is about the same as that of the aboveground part.

The average temperature of the hottest month in the warm temperate zone is above 20 degrees Celsius, and the average temperature of the coldest month is above 0 degrees Celsius, which is suitable for the cultivation of sugar oranges.

Shatang orange is a traditional native product of Guilin, Xilin, Deqing, Huaiji, Guangning, Sihui, Fengkai and Xinyi City. The purpose of fertilizing young trees before fruiting is to rapidly expand the canopy and lay the foundation for early fruiting and high yields. The effective measure is to apply nitrogen fertilizer frequently.

The role of nitrogen fertilizer is to focus on spring, summer and autumn shoots, and summer shoots grow fast and fat, which plays a great role in expanding the canopy.

With the increase of the age of the tangerine tree and the continuous expansion of the canopy, the amount of fertilizer should be increased year by year, and an appropriate amount of phosphorus and potassium fertilizer should be applied. Due to the small and shallow distribution range of the root system of the young tangerine tree, the absorption capacity is weak, and there is no fruit burden, therefore, the fertilization is based on the principle of a small amount and many times, and the method of frequent application and thin application is adopted. There are many open spaces between the rows of young trees and sugar orange orchards.

In order to improve the soil, increase soil organic matter, and eliminate weed breeding, leguminous green manure should be planted in winter and summer, turned deep into the soil, and the soil should be matured.

The cultivation techniques of sugar oranges are as follows:

I recommend raising chickens under the tree of sugar oranges.

Look for some books on this.

Summary. If there is no spot disease in the fallen fruit, only the yellow phenomenon appears on the pedicle of the fruit, which is generally due to the relatively reduced accumulation of nutrients in the plant, which cannot support the needs of many fruits.

Hello, now help you analyze the reasons for the fall of sugar oranges in October:

If there is no spot disease in the fallen fruit, and there is only a noisy yellow side bump on the pedicle of the fruit, it is generally because the accumulation of nutrients in the plant is relatively reduced, and it cannot support the needs of many fruits.

It can be considered to spray fast-acting cytomaton, spraying once every 7 to 10 days, spraying twice, in order to use the active comma substances in the available cytomatrian to inhibit the development of abscisic acid caused by fruit stalks and reduce the fruit.

The nutrients in the fast-acting cytoswelling hormone, such as amino acids, nitrogen, phosphorus and potassium, etc., can also be supplemented in time for tree nutrients, and when the fruit begins to color, it can be sprayed with liquid surface fertilizers such as Celery or high-potassium Kangbao to accelerate the coloring of the fruit and the transformation of nutrients.

The planting specifications of tangerines vary depending on the variety, rootstock, soil, etc. Usually the anvil and the soil are fertile; Dwarf anvils or thin soils are denser. Generally, most of the planting density is 80-110 plants per mu

From January to February, the spring shoots may begin to germinate before budding. After the cold, it gradually warms up, and the new roots grow fast after planting, and the survival rate is high. The disadvantage is that the spring spouts of the year are different.

If there is no rainfall after planting, water every day for 3-4 days to keep the soil moist, and then depending on the lack of water in the plant, water once every 2-3 days until it survives. One week after planting, the hole soil has sunken slightly, and bamboo branches can be inserted to support and fix the plant, so as to prevent the wind from shaking the roots and affecting the survival. If the leaf curl is found to be serious after planting, some branches and leaves can be appropriately cut off to improve the survival rate.

Generally, half a month after planting, some plants begin to take root, and after a month, thin fertilizer can be applied, adding water to rotting acquaintance urine 5-6 times, or urea plus water to make water, apply 1-2 spoons per plant, and promote early rooting and more roots of young trees. After that, drench 1-2 times a month. Plants with new roots and leaves that have not returned to normal growth should not be fertilized too early, so as not to cause fertilizer damage and affect survival.

In fact, it has a wide range of adaptation to loam, a variety of soil can be planted and grown, the requirements must have a sense of permeability, the texture needs to be soft, loose, can not be a heavy loam, with strong drainage, but also have a certain amount of organic matter, in this disturbance loam growth is the most suitable, pH value control is the most appropriate.

The temperature of the planting site is best in the range of 12-37 degrees Celsius, and both high and low temperatures are not suitable for planting and growth. Autumn is just in the period of flower bud differentiation, and it is necessary to ensure a good temperature difference, at least 10 degrees Celsius, maintain a temperature difference of about 20 degrees Celsius during the day, and maintain about 10 degrees Celsius at night.

It itself is relatively shade-tolerant, but it also needs enough sunlight to promote growth, the sunlight conditions must be good, the fruit will taste sweet when planted, under normal circumstances, the number of hours of sunshine is kept in the range of 1200-2200 can grow normally, and there is no problem with growth.

The density of planting varies due to the difference in varieties and soil conditions, and the general planting density is about 80-110 plants per mu.

1. Planting soil: Choose a loose, breathable, and nutritious field for planting sugar oranges, and the pH value of the soil is best between. 2：

Planting method: Select seedlings with good growth, and plant them in the field with a plant spacing of rice after pruning. 3. Field management:

Maintain the soil moisture content at about 80% and dredge the drainage ditch during the rainy season.

1. Planting soil

The requirements for the soil are low, and it is best to use the pH value between, loose and breathable, and nutritious soil when planting, and the soil should be turned deep and dried before planting, and carbendazim should be sprayed on the soil surface to eliminate the eggs and weeds in the soil, so that the sugar orange can grow better.

2. Planting method

In the process of planting sugar oranges, it is necessary to select seedlings with good growth, no diseases and pests, and no damage, and then cut off the branches that are too messy and dense, and then plant the seedlings of sugar oranges in the field with a plant spacing of rice, and keep the density at 80 plants per mu.

3. Field management:

There is a certain demand for water, and it is best to keep the soil moisture content at about 80% in the process of breeding, and take measures to replenish water when it is less than 60%, but the sugar orange is afraid of waterlogging, and the drainage ditch should be dredged in the rainy season, and the excess water should be discharged to avoid the phenomenon of rotten roots of the plant.