Generally, brassinolide and liquid titanium fertilizer can be used to treat citrus, which usually has t
Generally, brassinolide and liquid titanium fertilizer can be used to treat citrus, which usually has the effect of fast color and sweet taste. Generally, the reasons that affect fruit coloring can be divided into internal and external factors. The internal cause is that plant hormones such as ethylene and abscisic acid in plants can usually make fruits mature after coordination in vivo, and coloring is a manifestation of fruit maturity. After using brassinolide, the photosynthetic capacity of plants can be enhanced, the production of ethylene can be promoted, and the coloring speed can be improved. External factors mainly include climate, light, temperature, moisture, nutrients and other factors. Among them, in the environment with sufficient light, it can promote the synthesis of carotenoids and other pigments, which is beneficial to coloring.
First, what medicine is used to quickly color and sweeten citrus?
1, what medicine can I use?
(1) brassinolide: Ethylene in citrus can promote fruit coloring, balance nutrients in fruit trees, and make them color evenly and have good color, while the production of ethylene generally requires photosynthesis of fruit trees. Therefore, the rational use of brassinolide in citrus can promote the production of ethylene and accelerate the coloring of citrus.
(2) Liquid titanium fertilizer: Appropriate use of liquid titanium fertilizer can promote the absorption and utilization of nitrogen, phosphorus, potassium and trace elements by fruit trees, and improve the chroma, sugar content and vitamin C content of citrus.
2. The reason of orange fruit coloring.
(1) Internal cause: Coloring is the performance of fruit ripening, and fruit ripening generally depends on the coordination of plant hormones such as ethylene, gibberellin and abscisic acid in plants.
(2) External factors: Generally, citrus fruits will naturally color when they are ripe, but the speed and quality of coloring are usually affected by climate, light, temperature, moisture, nutrients and other factors. Taking light as an example, under good light conditions, it is usually beneficial to the synthesis of carbohydrates, the accumulation of sugar and the synthesis of anthocyanins and carotenoids, and is generally beneficial to coloring.
Second, what is the reason for the uneven coloring of citrus?
1, the received light is uneven.
(1) If the fruit is not evenly illuminated, it is easy to cause partial coloring of the peel and fruit, resulting in uneven coloring.
(2) The fruits on the branches should receive as much sunlight as possible to reduce the degree of shading. At ordinary times, citrus trees can be pruned reasonably to ensure good light transmittance and make the fruits receive light evenly.
2. Excessive application of fertilizers with high nitrogen content
(1) When applying fertilizer during the discoloring period of citrus, if the fertilizer with high nitrogen content is applied excessively, the chlorophyll content in the fruit epidermis is easy to be too high, which makes it difficult to discolor the fruit epidermis, or some epidermis discolors unevenly.
(2) During the ripening and discoloring period of citrus fruits, fertilizers with high potassium content are generally applied, and medium and trace element fertilizers such as phosphate fertilizer, calcium, magnesium and boron fertilizer can be applied appropriately.