I am from Guangxi. I purchased sugar orange seedlings at the farmer’s market. Through my management and fertilization, they are now growing vigorously.

Guangxi sugar orange saplings are currently priced at 2-4 yuan per plant, and virus-free seedlings are 4-6 yuan per plant.

1. When to plant sugar oranges?

The planting period of sugar oranges is the same as that of other citrus fruit trees. They can be planted after the new shoots mature and before the next new shoots emerge. Generally, they can be divided into two periods: spring planting and autumn and winter planting. However, various places can make choices based on actual conditions. Spring planting is preferably carried out from mid-late March to early April. At this time, the spring shoots turn green, the temperature rises, and there is more rain, making it easier to survive. Autumn and winter planting begins in mid-October after the autumn shoots mature, and can be planted until the end of January of the following year. However, sugar orange seedlings planted from late November to December have roots damaged when the flower buds differentiate, so the spring shoots that germinate next year will have more flower buds, which affects the rapid growth of young trees. However, no matter when you plant, you must pour enough root water and do a good job of covering the tree disk to help keep the soil moist and ensure survival.

2. What are the cultivation techniques?

(1) Dig the planting pit

The dimensions of the planting pit for Shatangjue are 0.5×0.5×0.5 meters in length, width, and depth respectively. When digging the pit, the topsoil and the core should be stacked separately. When returning to the pit, put 10 kilograms of soil and miscellaneous fertilizer, 5 kilograms of weeds, 1 kilogram of phosphate fertilizer, and 0.5 kilogram of lime in each pit. When returning to the pit, mix the soil miscellaneous fertilizer, phosphate fertilizer, lime and topsoil evenly with the weeds and return it to the pit in layers. Excavate the pit surface by 30 cm and make a fruit plate. For slopes, horizontal terraces should be opened. The planting size is 2.5×3 meters, and 80 plants are planted per mu.

(2) Planting of seedlings

The appropriate planting depth of sugar orange is at the original position of the seedlings. When planting, the roots should be paddled first. The roots should be naturally expanded and compacted. After planting, the roots should be Pour enough water on the roots and cover with 10 cm thick weeds or mulch to keep warm and moisturizing. Water must be poured every night for the first three days, and then every other day. After a week, it depends on the weather conditions, or once every 7 days or 10 days and a half month. , until the rainy season.

(3) Soil management

Deep plowing, hole expansion, and soil maturation should be done when planting sugar oranges. It is forbidden to plant tall plants such as corn and wheat in the garden, and the orchard should be well maintained. Proper intercropping, cultivating, weeding and other work. The soil layer is required to be deep (60 cm) and fertile. The soil pH is between 5.5 and 7.0. The terrain slope of the orchard is less than 25 degrees. When planning the garden, there should be necessary roads, drainage and irrigation, water storage and ancillary building facilities. In the specific planning, try to concentrate as much as possible and build gardens in places with good transportation and water resources.

(4) Fertilizer and water management

1. Fertilization principles: blood oranges’ needs for various nutrients should be fully met, and more organic fertilizers, rational use of inorganic fertilizers and formula fertilizers should be advocated. . Fertilization is guided based on leaf analysis results, orchard soil analysis results, blood orange phenological stages, etc.

2. Fertilization method: Mainly soil fertilization, combined with Caifate foliar fertilization, with a concentration of 1000-1500 times liquid, using circular furrow fertilization, strip furrow fertilization, hole fertilization and soil surface spreading. Fertilizer and other methods.

3. Fertilizer for saplings: Apply frequently and lightly, mainly nitrogen fertilizer, combined with phosphorus and potassium fertilizers, fertilize 5 to 6 times in spring, summer and autumn during the shoot growth period, 3, 5, 6, Apply 0.4 catties of ammonium bicarbonate or 0.2 catties of urea to each plant in July, September and December. For 1 to 3-year-old trees, 100 to 400 grams of pure nitrogen should be applied annually to a single tree. The ratio of nitrogen, phosphorus and potassium is 1.0: (0.4 to 0.5): 1.0.

4. Fertilizing adult trees: Fertilize adult trees four times, namely sprouting fertilizer, fruit-preserving fertilizer, fruit-strengthening fertilizer, and fruit-picking fertilizer. The amount of fertilization is generally 2 to 3 pounds of fertilizer for germination and one load of manure. Fruit-preserving fertilizer: 1 to 2 pounds of phosphorus and potassium fertilizer and 1 pound of chemical fertilizer. Fruit-enhancing fertilizer: 1 to 2 pounds of chemical fertilizer and 1 to 2 pounds of phosphorus and potassium fertilizer. The fruit fertilizer (basic fertilizer) is mainly organic fertilizer, and 50 to 100 kilograms of organic fertilizer plus 1 to 2 kilograms of chemical fertilizer are applied to the plants.

5. Water management: Irrigate when the soil is dry and drain when there is water accumulation.

(5) Plastic pruning

1. Principles of plastic surgery: pruning according to local conditions, tree pruning, proper promotion and suppression, ventilation and light transmission, and three-dimensional results.

The trunk height is 20 to 40 cm. The main branches (3 to 4 branches) are scattered and scattered on the trunk. The branch angle of the main stem is 30 to 50°. There are 2 to 3 secondary main branches on each main branch. Generally, after the third main branch is formed, the central trunk of the branch is cut off and twisted to one side to form a fruiting branch group.

2. Pruning of young trees: Mainly light pruning. After selecting the extended branches in the center of the cluster and the extended branches of each main branch and sub-main branch, cut them moderately or even severely, and adjust the growth balance between the main branches based on the degree of shortcut and the direction of the cut buds. In addition to appropriate thinning and deletion of overly dense branch groups, the inner branches and weak branch tips in the middle and lower parts of the crown should generally be retained.

3. Early fruiting period: Continue to choose short cuts to extend the backbone branches at all levels to wipe out summer shoots and promote strong autumn shoots. In autumn, flower-promoting measures such as girdling, root cutting, and water control are adopted for vigorous trees.

4. Trees in the fruiting period: timely retract the fruiting branch group, the flowering and fruiting branch group and the declining branch group, and cut off light-blocking branches, dead branches, and diseased and insect-infested branches.