Navel oranges with red flesh are widely planted. What are the points for attention in the cultivation techniques of red meat navel orange?

Compared with Newhall navel orange and other navel oranges mainly planted in China, Pengna navel orange has great differences in yield, fruit shape, essential quality, adaptability and resistance, but it has three different characteristics: first, the only navel orange variety in the world with red peel and pulp (the pulp is colored by tomato red), and the fruit is spherical, and second, it matures at the end of 65438+February. It is a little later than the navel orange varieties mainly planted in China at present (the key is to improve it from the middle and late February of 1 1). Third, the fruit is more resistant to storage, and can be hung on trees in frost-free areas in winter until March of the following year, with stronger flavor.

Red represents happiness and good luck, and red navel orange fruit is very popular in domestic and Hong Kong and Macao sales markets.

Professionals also generally believe that according to the influence of navel orange fruit in the hearts of many customers and the high quality of red meat navel orange fruit, its market prospect will be broad. Compared with the main varieties of navel oranges, the price of red meat navel oranges will increase by at least 50%, and the price of fruits as gifts and hotel dishes will double. There are more than 667 hectares of red-fleshed navel oranges in China navel orange planting area, but most of them are fruitless or newly-fruited fruit tree pruning, which is in the upgrading stage of citrus varieties in China. Therefore, the development prospect of red meat navel orange is broader, and its total planting area is gradually increasing.

In order to better reflect the planting development potential and economic benefits of red meat navel orange and prevent the possible damage caused by the upgrading of industrial structure, it is necessary to find the planting technology of supporting facilities. According to many years of working experience in demonstration sites in various districts, the main points of planting red meat navel orange are summarized as follows.

Red navel orange is compatible with the grafting methods of Fructus Aurantii Immaturus, Fructus Aurantii Immaturus, Grapefruit, Satsuma Mandarin and Sweet Orange. High grafting, single bud abdominal grafting (multi-xylem) to repair trees is fast and has high yield. Generally, the trunk can be repaired in two years, and the output can reach 300 kilograms per 667 square meters. After three years, the yield per plant10 ~ 20kg.

The most suitable area for planting red meat navel orange is ≥ 10℃, and the annual accumulated temperature is 5500 ~ 6500. Before the fruit is perfect (from 10 to 1 10), the temperature difference between day and night is large. Among the above areas, the area where the first frost comes late in winter (for example, after the end of 65438+February) and the delay time is short is the best ecological area to produce high-quality red meat navel orange. According to the construction plan of citrus in China and the characteristics of red navel orange, the most suitable development trend area of red navel orange is the upper reaches of Xiangjiang River, which can be used as one of the key fresh food species or development trends. Its development trend can cover an area of1.3 ~ 20,000 mu, its harvest period can be from the end of 12 to March of the following year, and the fruit market demand period can be around the Spring Festival.

Secondly, the development trends in Gannan, Yutan, northern Guangxi, Fujian and parts of Guangdong Province were analyzed. The total development trend area is not suitable for more than 20 thousand hectares (because there are a lot of development trends in this area), and fruits are mainly supplied to the market before the Spring Festival. The actual effect and economic benefit of planting in non-waterlogged gentle slope land and hilly slope land are the best. When the red meat navel orange plantation is newly built, the garden with shallow soil layer should be ditched and applied with base fertilizer; Adult plantations should be deeply loosened on time to improve the soil layer.

Kakashi, a big seedling and a flourishing seedling, was selected for transplanting, and 74 plants were planted in 3-3 m hillside orange orchards, and 56 plants were planted in 3M×2m flat and gentle slope orange orchards. Red-fleshed navel orange is robust in bud stage, and its branches are prone to drooping and bud cracking. Pay attention to early and early plastic surgery, adopt the method of pulling, bracing and tying branches, and the appropriate height of trunk is 40 ~ 60 cm. In order to prevent too many fruits from being too small, attention should be paid to thinning flowers and fruits, controlling summer shoots and smearing residual flowers and new shoots, moderately promoting spring shoots and early autumn shoots, and pruning trees after picking or before germination to ensure natural ventilation and light transmission of the trunk, so as to make the fruit look beautiful.

The continuous rainy weather in flowering period is very unfavorable to the production of red meat navel orange. On the one hand, it can play a practical role in thinning flowers, on the other hand, it can shake off the flowers attached to young fruits to prevent them from being moldy and damaging the fruits or causing scars on the fruits. When propagating seedlings, try to choose spring shoots for bud grafting and use phloem slightly when grafting. Pest control methods are the same as other citrus varieties.

Key points of cultivation techniques of red meat navel orange

Adaptability and suitable planting area:

Navel orange is suitable for planting in areas with good calorific value standard and large temperature difference between day and night before fruit perfection, and the first frost or frost in winter occurs after the end of 65438+February or in areas with short time.

Key points of cultivation techniques and matters needing attention:

First, choose the suitable area with good calorific value standard for planting;

Second, because Master Peng, the fruit of red meat navel orange, is sensitive to water shortage, the planting area should be rich in water resources, which is convenient for immediate watering as soon as possible;

Third, pay attention to thinning flowers and fruits, prevent too many fruits, and improve the large fruit rate and fresh fruit commodity rate;

Fourth, the continuous rainy days in flowering period are very harmful to the production of red meat navel orange. Red meat navel orange not only has the function of thinning flowers, but also can shake off the flowers attached to young fruits to avoid mildew damage or leaving scars on the fruits.

Fifth, pay attention to sparse branches and improve ventilation and light transmission; Sixth, avoid premature picking and affect the quality.