Question 2: In which month of the year is Imperial Orange produced? Gonggan, also known as Huanggan, is a variety in Deqing County, Guangdong Province, and has the honorary title of "Hometown of Gonggan in China".
Question 3: How long will the Imperial Citrus bear fruit after three years?
Question 4: How many years can Imperial Citrus be planted 1? Planting season: it is mostly planted in winter and spring, and autumn sowing is also acceptable, depending on land preparation, weather and labor. The answer usually submitted is to plant seedlings before germination.
2. Planting specifications: the plant spacing is 2.5×3 (m), and 80 ~ 100 plants are planted per mu.
3. Planting method: the paddy field is planted with deep furrows and high ridges, with the ridge height of 30 cm and the width of more than 50 cm. Dry land should be built and sufficient base fertilizer should be applied. When planting, use yellow mud water to irrigate the roots, and use fixed water to irrigate the roots thoroughly. After that, it should be watered every day and kept moist until it survives.
I. Post-implantation management
1, young tree management. Young trees are mainly managed by shaping, and trees are released four times a year (spring shoots, small full shoots, small summer shoots and white dew shoots); Three-year-old trees (newborn) put bamboo shoots three times (bamboo shoots, small summer-big summer bamboo shoots, white dew before and after bamboo shoots); For trees over four years old, shoot them 2 ~ 3 times (in spring, autumn or spring, with a slight overlap in late summer).
2, put the tip method. Topping promotes branching every time the branch length reaches 15 ~ 20cm, leaving 2 ~ 3 branches for each branch, and the last branch is not topped.
3. Fruit trees are placed on it. We should focus on cultivating high-quality fruiting mother branches. In principle, we should put shoots according to trees over four years old. The standard of releasing bamboo shoots is that more than 70% of the bamboo shoots in the whole orchard begin to sprout, and then they can be released. The method is to manually erase the early buds and sporadic new buds, remove the early buds and keep them together, so as to promote more, orderly and robust new buds. The last autumn shoot should mature from 1 1 to 65438+2.
Second, timely and appropriate fertilization.
1, young tree (1 ~ 2 years). Carry out the principle of applying thin fertilizer frequently. Realize one branch and three fertilizers (attacking bud fertilizer, strengthening bud fertilizer and turning green fertilizer). Press green in summer, cultivate soil in winter, apply garbage manure and green manure to improve soil and improve soil fertility.
2. Fruit tree. Re-apply the "Great Cold" fertilizer (fertilizer before flowering), autumn shoot fertilizer and pre-harvest fertilizer, and supplement the fertilizer for looking at flowers, thanking flowers and strengthening fruits. The amount of fertilization should be determined according to the age of the tree, the size of the crown and the amount of fruit hanging. Generally, the fertilization amount of autumn shoot fertilizer is 0.5 ~ 1 kg/plant, and the fertilizer is 0.25 ~ 0.5 kg/plant. Fertilization schemes in other periods depend on tree potential and fruit quantity.
Question 5: How to store grapefruit for a long time ① Use low-temperature storage technology for storage.
(2) The fresh-keeping technology is to take starch, cellulose, sucrose ester, higher fat and its derivatives as the main components, and then mix them with benzimidazole bactericide, sodium benzoate, sorbic acid, potassium sorbate, p-hydroxybenzoic acid, phosphoric acid and its salts in a reasonable proportion to make the special fresh-keeping film for Gonggan. A good protective film is formed on the fruit of Emperor Citrus, which effectively promotes the direct contact between drugs and the fruit, thus killing a large number of various germs on the surface of the fruit. Control stem rot and black rot, and control the infection of germs; At the same time, the concentration ratio of O2 and CO2 in the stored ambient gas is changed; Inhibit the synthesis of ethylene or eliminate the ethylene produced during storage, delay the ripening of citrus, and achieve the purpose of preservation.
Question 6: When will the Imperial Citrus be listed in autumn and winter? It's time for Dikan to go on the market. According to Professor Lin Lizhu from the First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Emperor Citrus is rich in nutrition, with good color, fragrance and taste. Can be eaten fresh, but also can be processed into a variety of processed products mainly fruit juice. However, the diet is also particular. It is suggested that when peeling food, don't just eat pulp, but eat it with the white "collaterals" outside, which is more conducive to health. In addition, its skin can also be properly dried and preserved for medicine.
Question 7: Is it ok to start planting grapefruit in 2065438+05? The soil layer is required to be deep (60) and fertile; The ph value of the soil is 5.5-7.0; The slope of the orchard is less than 25 degrees. When planning a garden, there should be necessary roads, irrigation and drainage, water storage and ancillary building facilities. In terms of specific planning, we should concentrate on one place as much as possible and build gardens in places with good traffic and water conditions.
time
Generally, it is planted after the autumn bamboo shoots mature in September-165438+10 or before the spring bamboo shoots germinate in February-March.
density
The planting density is 3m× 4m, and 55-60 plants are planted per mu.
Planting technique
Digging planting holes in the soil: pulling wires at regular intervals, digging planting holes with a depth of 80cm and a width of 80cm, then pressing green manure with a depth of 50cm, and backfilling the soil with a height of 40cm for planting; Ridge planting: each grid is 8 meters, the ditch width is 60-80, the depth is 40-60 cm, and there are 2 ridges (width 1.5 meters, center distance is 4 meters, and height is 20-30 cm). When planting, the roots of seedlings should be trimmed appropriately, placed in the center of the planting hole, stretched and righted, and the seedlings should be gently lifted upward while filling the soil, so that the roots are closely connected with the soil. Water the roots, make a 1m tree tray around the seedlings, and cover it with chaff.
Question 8: Huangdi Mandarin/Huangdi Mandarin, also known as Gonggan, is sweet and moist, with thin skin and single juice or no seeds. It is welcomed by the broad masses of the people and is the best fruit in the palaces of past dynasties. The real origin of tribute oranges is Xinxing County. According to legend, Wu Zetian sent ministers to Xinxing on Saturday, and local squires gave oranges to each other, and the ministers returned to Beijing to present gifts to Wu Zetian. On the 15th day of the first month in the first year of Shenlong (705), Wu Zetian and Tang Zhongzong Li Xianqin issued letters welcoming Hui Neng to Beijing (now Luoyang) and sent Xue Jian, the chamberlain, to lead a dozen people to fly south. Huineng was in the Caoxi Baolin Temple (now Nanhua Temple in Shaoguan) and presided over the Dharma. After reading the imperial edict, Xue Jianxuan refused to go to Beijing because of his age. Xue Jian was surprised: "If you don't go to Beijing, the emperor will ask me what I learned from my master when I get back. How should I answer? " Huineng dictated the truth that Mahayana is unique, and asked Xue Jian to help me bring it back to Luoyang. At the same time, he sent someone back to Xue Jian from NSW (now emerging) as a gift to Wu Zetian, thanking the emperor for his appreciation. Wu Zetian was amazed after eating the orange brought back by Xue Jian, calling it a masterpiece of the world, and told the gardener to carefully plant the orange tree in NSW from the sixth ancestor, and sent a cassock, a crystal bowl and 500 brocade to Hui Neng on September 3 of the same year. Two years later, Huineng gave the orange tree in NSW to Wu Zetian and let it blossom and bear fruit. Wu Zetian picked it and tasted it. It felt bitter and hard to swallow, which was a far cry from the orange tree she ate in NSW two years ago. At this time, Wu Zetian seemed to have an epiphany about Hui Neng's intention to give NSW citrus trees, that is, on 1 18 (AD 707), he allocated state capital to expand the Hongnong Temple built by Hui Neng for his retirement in Longshan, NSW, and personally wrote the name of the temple "Guo 'en Temple", so that he had to bring NSW citrus back when he sent the messenger back to Beijing. After this incident, Hui Neng sent people to Beijing every June 165438+ 10/8 to thank Huang En. Over time, the news that Wu Zetian had a soft spot for NSW Orange spread all over NSW, and NSW people simply renamed it Orange Emperor. At this time, Wu Zetian tasted the bitter and astringent orange of NSW, and understood Hui Neng's intention of refusing to go to Beijing: citrus reticulata, NSW could not grow sweet and refreshing without NSW; It means that if Hui Neng leaves the south, he will not be able to adapt to the northern environment and serve the emperor. Later, the literati summarized this allusion as one sentence: "Oranges born in the south are oranges, and oranges born in the north are oranges" to show that the development of talents needs a certain space, otherwise love will become a harmful talent. Dexing, Sihui and other places in neighboring counties have also introduced a large number of emerging imperial oranges, but those who have tasted them will feel very different from the place of origin. First of all, the emerging emperors have thin orange skins and few stones, but the non-native emperors have thick orange skins and many stones; Secondly, the emerging imperial orange juice is rich, fragrant and sweet, and the non-native imperial orange has a slight astringency after eating. The production of Emperor Citrus in emerging areas is not large, and it used to be exported. Most of the imperial oranges sold in Guangdong are produced in Dexing and Sihui.
Adopt it
Question 9: In the next few years, the fruit market of Huangcheng orange depends on the weather, mainly on the output. It is difficult to tell the future market clearly.
Question 10: How many years can you harvest imperial oranges?