This year, many citrus sprayed coloring products are still slow to ripen, and the effect of spraying two or three times is not ideal, and there are even counterproductive!
Because of the heavy rain this year, the maturity of medium-ripening varieties in most of the producing areas has been delayed, and it is difficult to spray coloring products (regulators and foliar fertilizers) to achieve the effect!
Why is it difficult to achieve the effect of spray coloring products this year?
1. From the middle and late stages of citrus fruit expansion to the coloring period this year, most of the producing areas have more rain, the light is reduced, the nitrogen of the tree body rises, the fruit coloring and acid reduction are delayed, and the effect of spraying coloring products is poor in this case.
In production areas with small temperature differences, Wangshi varieties and rootstocks, spraying commonly used coloring products may even have the opposite effect, the more times sprayed, the better the tree potential, and the later or uneven coloring.
2. There is a lot of rain this autumn, and some orchards produce a large number of autumn shoots, and a large number of autumn shoots grow and consume more nutrients, which will affect the fruit expansion, and the slow coloring of the fruit will be delayed.
Golden Autumn Sand Sugar Orange: Yunnan production area is high altitude and not affected by rain, Guibei, Hunan and other production areas have a large temperature difference between morning and evening, the climate and weather are favorable for fruit coloring, spraying coloring products are easy to have effect.
In Baise, Chongzuo, Guigang, Wuzhou and other production areas, there is a lot of rain, a small temperature difference, and the fruit ripening is delayed, and it is difficult to achieve the effect of spraying coloring products.
Navel orange: It is a prosperous variety, and it is easier for trees to grow vigorously when it rains, and the fruit ripening is delayed due to rain in most production areas, and it is difficult to achieve the effect of spraying coloring products.
Shatang orange: Affected by rain, the ripening of early-maturing production areas such as Xilin and Cenxi has been delayed, and the overall effect of spray coloring products is not as good as in previous years.
The rainfall in the coloring period of the middle and late maturing producing areas was reduced, and the fruit ripening time was less affected, so the rational use of coloring products had an auxiliary effect.
Mandarin orange: the overall ripening time is not affected, and the reasonable use of coloring products has an auxiliary effect.
However, the early maturity of the market depends on the climate, rootstock, management, early maturity of the market is mainly in the Nanning production area, the middle and late maturity of the overall acid reduction is difficult to achieve early maturity.
Yoshitomo Yukolu: If you want citrus coloring well, the nutrition of fruit trees is the basis of coloring, and you must know how to manage it according to the orchard conditions and weather.
With the basis of balanced nutrition, coloring products can be used rationally if conditions are available, so that the fruit can be colored better.
If you want citrus to mature early and go to market, climate, rootstock, weather, management and other steps are the key, and the management should be early to bloom and expand the fruit quickly, and the fruit will be colored early.
With an early-maturing orchard, coloring products can be used rationally if conditions permit, so as to accelerate the coloring of fruits. Without the foundation of early maturity, it is difficult to achieve early maturity if you want to rely on spray coloring products. 【Disclaimer】The content of this article, personal opinions, is for reference only!