The planting base is located in Baiji Town, Yongning District, Nanning City, covering an area of 3, mu. Citrus varieties such as Wogan, Seedless Wogan, Jinqiu sugar orange and Golden Citrus are planted, covering 5 mu of high-quality citrus seedling breeding area, 2 mu of ecological three-dimensional breeding demonstration area, 1 mu of processing and logistics supporting area and 1 mu of ecological leisure function service area

Maogu Citrus is rich in flowers, easy to set fruit, rich in six and high in solid content, so the management of fertilizer and water is very important-four times a year, spring fertilizer, summer fertilizer, autumn fertilizer and fruit harvesting.

2, shaping and pruning. This part of the work can be used in four sentences:' Leave spring shoots as appropriate, erase summer shoots, put autumn shoots uniformly, and strictly control late autumn shoots and winter shoots'. That is, when the spring shoots grow to 5cm long, each branch leaves 2-3 strong buds in different directions. The principle of bud retention is: sparse and sparse, sparse and short, sparse and weak, strong and over-flourishing, leaving 6-7 leaves for coring; Don't shoot in summer; Autumn shoots can also be released in early September where the temperature is high (around August).

3, adult fruit trees, should control the summer shoots, with potassium phosphite 3 or so to control the summer shoots twice 1-15 days-times. In terms of disease prevention, Maogu Citrus includes gummosis, scab, anthracnose, canker and resin disease. Medication should be used every quarter.

(2) prevention and control of main diseases and insect pests of

1. prevention and control of physiological diseases

the fruit-bearing parts of Maogu citrus are mostly at the top of branches, which is easy to cause sunburn wind scars. Therefore, when the fruit is 4cm long, white paper and white coating or bagging should be applied to the sunny part, and sunscreen liquid should be sprayed in July, August and September to reduce sunburn.

2. Anti-cracking, anti-falling and anti-freezing. Add compound sodium nitrophenolate with CA-6 and spray it twice according to the usage method.

3. Control of citrus red spider and mite. The policy of "prevention first, comprehensive prevention" should be adopted. Rational use of pesticides, protection and utilization of natural enemies, give full play to the natural control role of ecosystems, and control the harm of harmful mites below the economic allowable level.

Biological control

Protecting and utilizing natural enemies can significantly control harmful mites. During March-May and September-October, 2-4 predatory mites such as amblyseius were released from each citrus tree with an average of less than 2 harmful mites per leaf. After release, the damage of tetranychus urticae can be controlled for one and a half months. After the release of natural enemies, Yan Lin did not spray highly toxic pesticides.

(3) Chemical control

Use pesticides with good acaricidal effect, such as acaricide, target mite, and pesticide such as guobide.

(4) prevention and control of psyllid

psyllid can occur for several generations a year, and each generation overlaps. Adult nymphs gather on the tender buds of citrus, suck juice, and the growth of the damaged buds is blocked, and the leaves are curly and cannot develop normally, resulting in early defoliation, polluting fruits, affecting quality and spreading germs, especially Huanglongbing.

psylla began to move in mid-March, when the insect body was weak. Focus on prevention and control for 1-2 times, which can effectively kill overwintering adults. 1 times of 7% pyridaben and 3-4 times of bifenthrin. 1 5 times of 25% chlorpyrifos wettable powder and 4-5 times of synthetic washing powder. Can reduce the spread of Huanglongbing.

Third, eating experience

(1) How to choose a sweeter Wogan

"With the improvement of people's living standards, fruits are more and more popular, especially in winter, which is a sweet and sour fruit. So how to choose a sweet and sour Wogan?

(2) Look at the appearance

When choosing, you must choose the orange-red Wogan with shiny color, because Wogan is not too green in those colors, so this aspect need not be considered. Furthermore, if we look at the fruit pedicel of Wogan, generally, the fruit pedicel is not ripe, and it will taste a little bit more sour than the mature one. Because the sugar has not attracted enough, it will naturally not be flatter or sweeter than the fruit pedicel.

(3) Pinch the Wogan

When selecting the Wogan, you can gently press the outside of the Wogan with your fingers, and the one with good elasticity is the best, which shows that the water is sufficient, the taste is good, the fruit is compact and the nutrition is higher. If you don't feel the flesh when you pinch it with your hands, it proves that the skin is thick and uneconomical, but the flesh and water are the same. When you gently pinch the orange with your hands, the skin will be oily or your fingers will feel slightly wet, which means the orange with the most water and the highest sugar.

(4) Precautions

Because of its low cold tolerance, Wogan oranges should not be stored in the refrigerator in winter, but should be stored in a dry place. Wogan is delicious, but it will get angry if you eat too much, so you should eat it in moderation.