Planting and Management techniques of Horse Water Citrus

Horseshoe orange is a specialty of Yangchun City, Guangdong Province, and is also a national geographical indication product of China. It is famous for its beautiful shape, colorful color, thin skin, slag, less core, more juice and sweet fragrance. The following is an introduction to its planting management technology.

Management techniques for orange cultivation:

1. selective planting

The soil texture of the planting land of Ma Shui Orange is loam and sandy loam, the soil pH value is 6 to 7, the organic matter content is ≥2%, and the soil layer thickness is ≥1 meter. Generally, the average temperature in January is lower than 5℃, and it is not suitable for planting in areas with frost. The suitable planting spacing is 2.5m× 4m, 66 plants per mu, no thinning within 10 years after planting, thinning every other plant after 10 years, changing the row spacing to 5m × 4m, and maintaining the rich period of 5-10 years.

2. fertilization

The planting of marinated orange is usually carried out before spring bud germination in February to March, or after spring shoot ripening in April to May and autumn shoot ripening in September to October every year. After planting, apply different fertilizers for different periods:

Young trees: follow the principle of frequent and thin application, root application as the main and leaf fertilizer as supplement. After planting, irrigate fixed root water, start topdressing after 1 month, apply Haijingling biological stimulant root application type + quick-acting nitrogen fertilizer 1-2 times per month; combine with hole expansion and soil improvement in late October, and reapply organic fertilizer.

Hanging fruit trees: apply pre-flowering fertilizer before spring shoot germination, mainly nitrogen fertilizer combined with root application type of Haijingling biological stimulator; apply less or no fruit stabilizing fertilizer; apply heavy fruit strengthening fertilizer, organic fertilizer + balanced type or high potassium compound fertilizer + medium trace element fertilizer under ditching; apply pre-harvest fertilizer once more according to tree vigor at later stage, mainly phosphorus, potassium and organic fertilizer, supplemented with a small amount of nitrogen fertilizer to improve fruit quality. In addition to soil fertilization, foliar topdressing should be combined with flower and fruit preservation, mature shoots, poor root growth, too many fruits resulting in temporary defertilization, weak tree vigor, etc.

3. irrigation

In summer, water should be diverted into the orchard in time to adjust temperature and moisture with water; intertillage and loosening should be carried out to improve the ability of water and fertilizer conservation, improve the orchard microclimate, reduce fruit drop and promote strong fruit. When the weather is suddenly wet and dry, it is easy to crack fruit. The tree tray should be covered with straw or weeds to reduce direct sunlight and water evaporation, reduce surface soil temperature, protect root groups, enhance root activity and reduce fruit drop. If there is no rain for 10 days, irrigation should be carried out in time to meet the fruit's water needs.

4. pruning

The pruning of young trees before germination should not be too heavy. In summer, on the premise of ensuring fertilizer and water supply, summer shoots can be picked when they grow to 30 cm, which can accelerate the branching series; summer pruning of trunk branches and extended branches can accelerate branching and accelerate the formation of high-yield crowns. In addition, attention should be paid to crown culture in spring, summer shoots in early fruit stage, timely autumn shoots and winter shoots control.

5. Fruit and flower disease management

Do a good job of flower and fruit protection measures, reasonable fertilization and irrigation. In rainy days, the petals should be shaken to improve the fruit setting rate, and plant growth regulators should be sprayed according to the situation to protect the fruit; attention should be paid to the prevention and control of canker disease, anthracnose, scab, rust spider, red spider, leaf miner and other pests.

Horseradish orange can be harvested from mid-January to mid-February every year, and the orange peel can be harvested in time. After harvesting, the garden should be cleaned and fertilized.