Zigui Navel Oranges withstood the Test of the Epidemic

At the beginning of the year, the sudden COVID - 19 virus "halted" people's progress. More than 60 days later, with the alleviation of the epidemic, enterprises gradually "started" to resume work and production. Returning to the long - absent office, a colleague's exclamation attracted all of our attention: "Oh no, the oranges from the Zigui experiment have rotted!" However, when everyone gathered around and took a closer look, a miracle occurred! The samples of Zigui navel oranges from the experiment that had not been sent to Huazhong Agricultural University for inspection due to the "epidemic" before the Spring Festival had undergone different changes: most of the samples of navel oranges from the bags fertilized with conventional fertilizers had rotted and were inedible; while the samples of navel oranges from the bags fertilized with the "package" of Yishizhuang's special fertilizer for citrus plus bio - organic fertilizer were still intact, withstanding the more - than - two - month - long test of the "epidemic"! With the same orchard conditions and the same storage environment, the reason for such a difference is both within expectation and somewhat unexpected.

Recalling the continuous experiments in the orange orchard of Nie Chuanbing in Jiajiadian Village, Guizhou Town, Zigui County in recent years, we may be able to find the answer. Recommended by Du Chenghua, the business manager in Zigui, orange grower Nie Chuanbing has been using Yishizhuang's citrus package fertilizer (42% special fertilizer for citrus + Xiyangyang bio - organic fertilizer) for more than three years. The tree vigor in his orchard forms a sharp contrast with that of the surrounding orchards fertilized with conventional fertilizers. Undoubtedly, he has his own views on the application effect of Yishizhuang's citrus package fertilizer:

① The fertilizer effect is long - lasting, which can coordinate the relationships between nourishing the trees and the land, protecting flowers and fruits, increasing production and improving quality;

② The nutrients are balanced, with a good ratio of nitrogen, phosphorus and potassium, and sufficient medium and trace elements, ensuring strong tree vigor, thick leaves, green leaf color, and improving the symptoms of nutrient deficiency;

③ There are no side effects, no harmful components, and no yellowing of leaf tips (for example, in 2019, many fruit growers in this village suffered from biuret poisoning after using fertilizers of other brands, resulting in large - scale yellowing of leaf tips and defoliation);

④ The fruit quality is good, with uniform fruit size, orange - red coloring on the fruit surface, fine and small oil vesicles, a melting - in - the - mouth taste, and a sugar content of about 15;

⑤ The phenomenon of alternate bearing is not obvious.

Could it be that because the fertilizer effect is sufficient, the nutrition is more balanced, the tree vigor is stronger, and the fruit is of higher quality, the shelf - life of navel oranges is extended?

After years of field experiments and application practices, we have found that an important factor affecting the shelf - life of navel oranges is the nutrition of citrus. Many orange growers in the Guizhou area of Zigui still use the old - fashioned traditional fertilization method, emphasizing the application of macronutrients, preferring the so - called "balanced fertilizers" with the same nitrogen, phosphorus and potassium content, ignoring organic fertilizers and the supplementation of medium and trace elements. Excessive application of nitrogen fertilizer (especially during the fruit expansion period) leads to floating rinds and difficult color change of the fruits. In addition, due to long - term unreasonable fertilization, especially the use of only chemical fertilizers in a large part of the Zigui area, the soil acidification degree is high, and medium and trace elements such as calcium and magnesium are lacking, which exacerbates the calcium deficiency in the fruits, softens the cell walls and middle lamellae, and reduces the resistance to pathogen infection. In 2019, during the fruit expansion period of navel oranges, there was a long - term drought, and after the rain, there were numerous phenomena of fruit cracking and dropping, which just shows that under such growth conditions, the navel oranges, after maturity, have a short shelf - life and are easily infected and rotted, inevitably shortening the storage time and sales time after the navel oranges are picked.

Yishizhuang's special fertilizer for citrus follows the fertilizer requirements of citrus and is aimed at the soil fertility characteristics of Zigui. It not only configures a special nitrogen, phosphorus and potassium formula but also adds medium and trace elements such as calcium, magnesium, boron and zinc that are required by navel oranges but insufficiently supplied by the soil. After application, the nutrition is more balanced, the tree vigor is stronger, the thickness of the leaves increases, the leaf color becomes greener, and the leaf yellowing phenomenon caused by nutrient deficiency is effectively alleviated. Especially during the fruit expansion period of navel oranges, sufficient medium and trace elements are conducive to increasing the flexibility of the fruit peel, and reasonably controlling the release of nitrogen fertilizer can make the fruit development smooth, with fewer floating - rind fruits and cracked fruits. As we can see from this clear contrast, the fruits fertilized with Yishizhuang's citrus package fertilizer not only have a higher sugar content (after measurement, the sugar content is still as high as 16 degrees at most and 14 degrees at least) but also are more resistant to storage and have a longer shelf - life!

"Epidemic" prevention and control, and scientific and technological resistance to the "epidemic"! This time, the experimental navel oranges in Nie Chuanbing's orchard won the victory in the more - than - two - month - long fight against the "epidemic" with their own advantages, once again verifying the scientific and technological strength and brand charm of Yishizhuang's citrus package fertilizer. With scientific proportioning, balanced nutrition, high organic efficiency, and ecological health, it is trustworthy and worthy of possession!