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There are reasons for the slow veraison: whether the management of fruit trees in the current year is not in place, first, the amount of fruit hanging is large, and the fruits compete with each other, which affects nutrient absorption; The second is that the number of leaves is too much, or there are many rainy weather during the veraison period, which affects photosynthesis.
There are reasons for the slow veraison: whether the management of fruit trees in the current year is not in place, first, the amount of fruit hanging is large, and the fruits compete with each other, which affects nutrient absorption; The second is that the number of leaves is too much, or there are many rainy weather during the veraison period, which affects photosynthesis.
There are several ways to color:
One is water fertilizer: potassium dihydrogen phosphate.
Humic acid, alginic acid and other rich organic carbon, medium and trace elements.
It can not only promote the development of capillary roots, but also directly supplement the phosphorus, potassium and medium and micro fertilizers required for fruit expansion and color change, so as to strengthen the tree, expand the fruit and color in one step.
The second is foliar spraying: when the fruit surface begins to turn yellow, trace element foliar fertilizers such as potassium dihydrogen phosphate and alginic acid coloring are sprayed through the foliar surface.
Sugar oranges. The coloration of the fruit is done by the anthocyanins and carotenoids in the peel.
to present a color specific to the variety, such as a sugar orange.
It's orange-red. The formation of anthocyanins and carotenoids is related to light, temperature, temperature difference between day and night, and the sugar content of fruits. Sufficient light, appropriate low temperature, large temperature difference between day and night, and relatively fast color change; From the nutritional point of view, phosphorus, potassium, calcium, magnesium and boron are sufficient, the leaf photosynthetic ability is strong, and the sugar accumulated in the fruit is sufficient, and the color change is fast.
On the contrary, if the fruit bearing is large, the tree is too weak or too vigorous, and the ratio of nitrogen, phosphorus and potassium is unbalanced, the color change will be slower. We found that under the same climatic conditions, the fruit coloring could be enhanced by strengthening the supplementation of phosphorus, potassium and calcium.
Sometimes citrus coloring is uneven, one is the large amount of fruit hanging, and the fruits compete with each other, which affects nutrient absorption; The second is that the number of leaves is too much, or there are many rainy weather during the veraison period, which affects photosynthesis. Third, there is too much nitrogen fertilizer, and there is not enough phosphorus and potassium, so it is recommended to control nitrogen fertilizer and increase potassium fertilizer only during the veraison period.
foliar calcium and boron sprays; Fourth, the root activity is poor at the fruit expansion stage.
It can also be accelerated by the application of drugs: continuous foliar fertilizer can be applied in the citrus veraison period, with beautiful coloring, good hardness, and less frost fruit. Of course, this method should not be taken as much as possible.
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It is not a good thing for fruit trees to grow too vigorously, when they bloom and bear fruit, fruit farmers can inhibit the growth of treetops by circumcision, so that nutrients reach the flowers, which can promote the increase in the amount of flowers, and achieve the effect of preserving flowers and fruits, and now in winter, if the fruit trees grow too vigorously, it is also unfavorable for the fruit to mature and grow, which will cause the light to grow leaves and not grow fruits, and many fruits are not nutrient enough to separate from the fruit stalk and cause fruit drop, and those without fruit drop can not turn color and ripen because of insufficient nutrients.
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To apply medicine to gradually improve, as much sun as possible, can speed up its color change, to fertilize regularly.
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Summary. Hello, dear: how to control the flowers of sugar oranges?
If the amount of flowers is too large, a lot of nutrients will be consumed, and this will lead to small fruits, which will reduce the fruit grade, and the next year will not bloom enough to produce a large and large year. Flower control is mainly used for pruning, and can also be used to control flowers. Winter pruning, pruning is mainly for plants with too large flowers, such as small trees of the year, trees with large flowering over the years, etc., pruning to cut off part of the fruiting mother branch or truncate part of the fruiting mother branch, which can promote the germination of vegetative branches and improve the ability of fruit setting.
The regulation of the agent is to inhibit the physiological differentiation of flower buds, which can significantly reduce the amount of flowers, increase the leafy branches, and reduce the leafless branches. The main agent used is gibberellin, which is sprayed 20 to 30 days apart. Spraying gibberellin after the physiological differentiation of flower buds can effectively reduce the amount of flowers.
Gibberellin has an obvious effect on flower control, but the dosage is difficult to master, so it is necessary to pay attention to the dosage.
Dear, hello Xun pants: How to control flowers in sugar oranges?The amount of flowers per mu of sweet tangerine is too large, which will consume a lot of nutrients, and this will lead to very small fruits, reduce the fruit grade, and the next year's flowering is insufficient and the size of the year will appear.
Flower control is mainly used for pruning, and can also be used to control flowers. Winter pruning, pruning is mainly for plants with too large flowers, such as small trees of the year, trees with large flowering over the years, etc., pruning part of the fruiting hand-pinned mother branch or shortening part of the fruiting mother branch, which can promote the germination of vegetative branches and improve fruit setting ability. The regulation of the agent is to inhibit the physiological differentiation of flower buds, which can significantly reduce the amount of flowers, increase the leafy branches, and reduce the leafless branches.
The main agent used is gibberellin, which is sprayed 20 to 30 days apart. Spraying gibberellin after the physiological differentiation of flower buds can effectively reduce the amount of flowers. Gibberellin has an obvious effect on flower control, but the dosage is difficult to master, so it is necessary to pay attention to the dosage.
1) Pre-flowering fertilizer (spring fertilizer);Generally, in February, the fertilizer is mainly organic fertilizer, with inorganic fertilizerThe fast-acting fertilizer is mainly nitrogen fertilizer, and phosphorus and potassium fertilizer are added. (2) Strengthen the fruit and promote shoot fertilizer;In mid to late July, the fertilizer is mainly fast-acting fertilizers such as manure, urea and superphosphate. (3) Fruit harvesting fertilizer only;After harvesting, green manure or well-rotted organic fertilizer is applied and superphosphate is addedWeak trees and fruit-bearing trees can be applied in two batches before and after harvest.
The fertilizer is mainly nitrogen fertilizer, combined with organic fertilizer, phosphate fertilizer, etc., if it is acidic soil. There is also the improvement of the soil and the addition of lime. The above is all the introduction of sand tangerine flower control and fertilization technology, if farmers want to plant high-yield sand tangerine, we must master scientific management methods, in order to effectively improve the planting efficiency of sand sugar orange.
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The way to turn color is to refrigerate at low temperature. Appropriate low temperature helps the accumulation of sugar, anthocyanins and carotenoids in the fruit and promotes the color change of sugar oranges.
the ability to lead to rejuvenation.
Sand sugar orange, also known as October orange. The fruit of sand sugar orange is oblate, with a nodulous protrusion at the top, the end of the pedicle is concave, the color is orange-yellow to orange-red, the fruit wall is thin, and it is easy to peel off.
Nutritive value. Sugar oranges are rich in vitamin C
Calcium, fiber, a small amount of protein, fat and rich in glucose, fructose, sucrose, malic acid, citrate, citric acid, as well as carotene, thiamine, riboflavin.
Niacin acid, ascorbic acid.
as well as calcium, phosphorus, magnesium, sodium and other elements necessary for good health.
Sand sugar orange taste, sweet and sour, warm, has the effect of regulating qi and phlegm, moistening the lungs and clearing the intestines, replenishing blood and strengthening the spleen, etc., can treat less food, light mouth, indigestion and other symptoms, can help digestion, remove phlegm and quench thirst, regulate qi and disperse it, and prevent and treat constipation.
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Hello, I am glad to answer the question of the coloring period of hazu sugar orange, if you encounter drought for a long time, you can properly water it. People are worried that drenching water will affect the accumulation of sugar, not only is the base sweet enough, but also worried about the appearance of floating peel fruit. Long-term drought in the early stage of coloring can be drenched.
The main reasons are as follows. Long-term drought is not conducive to the growth and development of fruits and fruit preservation. The lack of water for a long time affects the coloring and ripening of sugar orange fruits.
There is still a period of time from coloring to harvesting, and if there is a long-term drought and no water**, it will lead to water loss of fruit, fruit drop, and even leaf fall due to many fruits. Especially in the early stage of coloring, it is also necessary to supplement a certain amount of water and fertilizer to ensure that the nutritional needs of the fruit are met.
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The planting environment, weather, soil, sunshine and other factors of sugar oranges lead to the poor color of sugar oranges, and it is difficult to sell sugar oranges at a good price, so growers will color sugar oranges in order to sell sugar oranges. Yellow No. 3 food additive is generally used for coloring, which is an edible grade artificial coloring and is also a food additive approved for use in China. It is usually used in food, cosmetics, feed, bakery products and other items.
The planting environment, weather, soil, sunshine and other factors of sugar oranges lead to poor color of sugar oranges, and it is difficult to sell sugar oranges at a good price. Yellow No. 3 food additive is generally used for coloring, which is an edible grade artificial coloring and is also a food additive approved for use in China. Socks are usually used on food, cosmetics, feed, bakery products and other items.
It has the characteristics of color stability and uniformity, and is relatively low, so it is widely used by sugar orange growers.
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Sugar orange fading is not a yard to eat, this is the hungry search of some vendors in order to make the sugar orange color bright, painted color, rotten calendar is not a natural sugar orange, it is best to go to the regular supermarket to buy.
How much is a sugar orange.
Hello, can you be in more detail? According to this kind of question, there are several possible ones: First, what kind of pesticide did you use? For example, if you don't wash the nozzle after weeding, you can see if you have this symptom in the leaves of a tree that doesn't sprout, and it can happen all year round, spring, summer, and autumn. >>>More
To achieve uniform size of citrus fruits, foliar fertilizers or pesticides alone will not achieve the goal. The main role is to try to be as neat as possible when releasing the next autumn shoots, and the strength of the shoots should be as consistent as possible. This is done by fertilizing and pruning the plants about 15 days before the shoots are scheduled to be released. >>>More
First of all, the preparation of materials.
1. 22 grapefruits, 80 grams of sugar. >>>More
Tangerines themselves are shade-tolerant, but they need enough sunlight to ensure their taste and sweetness. In general, it is possible to grow between 1200 and 2200 hours of sunshine.