What are the quick ways to color citrus fruits (the real way to quickly sweeten and color citrus fruits)

When citrus enters the fruit expansion period, in addition to increasing sweetness, we must also pay attention to color change. A good appearance can improve the sales of citrus and increase economic benefits. So how should we promote coloring during the growth of citrus?

Three aspects of citrus coloring

In order to promote the coloring of citrus, we need to avoid three problems: slow coloring, uneven coloring, and abnormal coloring.

Citrus coloring is slow

There are usually two reasons why citrus fruits color slowly: one is insufficient nutrients, and the other is that high temperature affects sugar accumulation.

Usually, too much fruit or insufficient fertilizer will lead to insufficient nutrients in the citrus trees, resulting in less sugar in the citrus fruits, affecting the color conversion.

Therefore, it is necessary to promptly thin out defective fruits and weak shoots to reduce the output of citrus nutrients, and at the same time apply Green Oasis high-phosphorus and high-potassium water-soluble fertilizer, spray medium and trace elements, and improve color conversion efficiency.

The temperature also has a certain impact on the color change of citrus. Generally speaking, a moderate decrease in temperature at night will help the conversion of citrus sugar, thereby promoting color change.

This year, the temperature in some areas is 2-4 degrees Celsius higher than in previous years, which has affected the color change of citrus fruits. Many fruit farmers said that the color change is slow. There is no need to worry about this kind of situation, as long as the park management is maintained well.

Uneven coloring of citrus

There are several reasons why citrus fruits are unevenly colored. One is uneven coloring in the early stage. For example, the colors of citrus fruits on the sunny side and the shady side may be uneven. This requires thinning and pulling branches to make the light more even.

In addition, when citrus fruits have uneven coloring accompanied by leaf shedding, it may be caused by nutrient deficiency. At this time, it is necessary to control water and apply fertilizers to protect the development of leaves and fruits and promote sugar coloring.

Finally, there is another type of uneven color change, which is called regreening. To put it simply, the fruit has been left on the tree for too long, the sugar content of the fruit has decreased, and the chromoplasts have been transformed into chloroplasts again, which is difficult to reverse. Even spraying ethylene cannot restore the fruit to green again.

Abnormal coloring of citrus fruits

There are also some citrus fruit color change abnormalities such as white spots and blackening. Generally, the white spots on the fruit surface caused by spiders are dull and have incorrect color.

"African Mandarin" and "Black Beauty" caused by rust ticks; early yellowing and falling caused by fruit flies; red nose fruit and unripe fruit caused by Huanglongbing disease.

For these situations, once the color changes, it is difficult to improve. The only thing we can do is to do preventive work in the early stages to avoid diseases and pests in citrus so that this situation will not occur.

Method for rapid sweetening and coloring of citrus

If citrus fruits are difficult to color and have low sweetness now, it is recommended to take some measures to promote coloring and sweetening of the fruits.

You must not use certain so-called "sweeteners" or the like. These substances of unknown origin may have adverse effects on the tree and may also cause excessive pesticide residues. The following four aspects will discuss ways to promote color change and sweeten the fruit.

Adjustment of external environment

It is very important to control water in the external environment. Appropriate drought is beneficial to coloring and increasing sweetness, as well as flower bud differentiation. Water control does not mean no watering at all. In seasons of severe drought, appropriate watering is still necessary.

In addition to watering, you can also lay luminous films to promote uniform lighting and promote the color change of the fruit inside.

Protecting leaves and nourishing roots is crucial

As the main place for photosynthesis, leaves are more important for the maturity of citrus fruits. In the later stage, attention should be paid to the prevention and control of red spider mites to avoid damage to the leaves. The root system is an important organ for absorbing nutrients and water . Only when the root system is healthy can life activities be normal.

For citrus fruits with yellow leaves (mainly due to magnesium deficiency and other symptoms), it is recommended to apply Sea Elf biostimulant 1-2 times, which can not only quickly repair the root system, but also supplement trace elements such as calcium and magnesium.

Foliar Fertilizer Spraying

In the later stage of citrus, you can also spray foliar fertilizers such as phosphorus, potassium, and molybdenum. Their main function is to promote photosynthesis, improve color change efficiency, and increase sugar accumulation.

We can also spray the zero-nitrogen and full-nutrient Hongku foliar fertilizer. Hongku foliar fertilizer can not only quickly promote color and sweetness, but also promote flower bud differentiation and does not contain any hormone ingredients.