How many navel orange trees can be planted on one acre of land?

Navel orange is a very popular variety, mainly distributed in southern my country. It is rich in nutrients and contains various nutrients necessary for the human body. It is an excellent health and nutritional green food. Mastering its planting techniques and management methods is crucial to improving yield and quality. So how many navel orange trees can be planted per acre of land? Let’s take a look below.

1. How many navel orange trees can be planted on one acre of land?

The number of navel orange trees that can be planted on one acre of land ranges from 300 to 1,000, depending on factors such as the variety, age, shape and planting density of the orange trees. Generally speaking, 55 to 80 navel orange trees can be planted per acre, and the row spacing is usually 2 meters × 4 meters or 3 meters × 4 meters.

Planting density has an important influence on the yield and quality of navel oranges. Reasonable planting density can ensure that each tree can get enough sunlight and nutrients to promote the growth and development of fruits. Too high a density will lead to fierce competition among fruit trees, affecting light and nutrient distribution, resulting in a decline in fruit quality; too low a density will waste land resources and reduce yield per unit area.

2. Navel orange planting and management technology

1. Site selection for garden construction: Select a hillside land facing the sun, free of pollutants in the surrounding area, with a slope of less than 25 degrees, an altitude of 250-400 meters, cost-effective drainage pipes, thick and moist soil layer, and acidic soil with high water content.

2. Navel orange variety selection: choose cold-resistant varieties. Generally speaking. The actual effect of on-tree cold storage is on late-maturing varieties, followed by autumn-extended crystal seeds, and the early-maturing varieties are poor. In terms of fruit shape, spherical fruits are better than elongated fruits.

3. Selection of navel orange trees: Tree cold storage should be carried out on plants with strong plant shape, free of diseases and insects or with slight damage from diseases and insects. Before keeping the tree, proper pruning should be done to cut off diseased and insect-infested branches and too dense branches, improve ventilation and light conditions, and reduce the occurrence of diseases and insect pests. This technique is most suitable for implementation after 2 years and then intermittently once a year, and continuous implementation must be avoided.

4. Interplanting green manure to improve soil: Red soil, loess and purple clay soil are common in mountainous areas and hills. The soil is sticky, sour and thin, with poor permeability and water permeability, and low water content. Therefore, planting green manure crops in navel orange orchards can improve soil structure, continuously improve soil fertility and fertilizer efficiency, and reduce investment in organic fertilizers ; avoid soil erosion, consolidate soil, lock water, and resist drought; adjust temperature, and promote navel oranges to maintain normal physiological activities; promote navel orange growth and development, and significantly increase fresh fruit yield and quality; attract a large number of pests, improve the level of pest control in navel orange orchards, alleviate disease and insect damage, and reduce the use of pesticides .

5. Fertilizing young trees when they are planted in the same year: The main goal of planting young trees is to keep them alive and grow into trees, but their roots and rhizomes are not well developed. The method of fertilization is mostly frequent and thin application, with small amounts and multiple meals. Starting from more than half a month after transplanting and survival, until mid-to-late August, apply top dressing every 10-15 days, with 40-60KG/mu of organic liquid fertilizer per plant, such as 1 group of Jin planting seed source liquid per 2-3 mu. Apply base fertilizer moderately in autumn and winter.

6. Fertilization of young trees before fruiting: For young trees (2-3 years old), apply fertilizer frequently and thinly, focusing on base fertilizer, and coordinate with phosphorus and potassium fertilizers. Fertilize 6-8 times a year, with the ratio of nitrogen, phosphorus and potassium being 1:0.25-0.3:0.5. Apply shoot-promoting fertilizer once 10-15 days before the spring, summer and autumn shoots die or 10-15 days after the spring, summer and autumn shoots emerge, with 1-2 kg of Rujin biological fertilizer applied per plant.

7. Fertilization of fruit trees: When navel oranges enter the peak fruiting period (over 7 years old), reproductive growth and reproductive growth should be relatively balanced. The fruiting mother branches are dominated by spring shoots, so the fertilization should focus on spring bud fertilizer and fruit-strengthening fertilizer, apply fruit-picking fertilizer appropriately, and supplement trace elements in time.

8. Short trunk shaping and short tip pinching: Controlling the vigorous growth of the trunk can increase the length of the trunk branches and make it quickly form the initial conclusion trunk. Navel oranges usually become strong after they have 6-7 branches. After planting the navel oranges, dwarf stem shaping was performed, with the average stem height being less than 15 cm, and 20% of the plants had branches growing from the bottom. At the same time, every spring, summer and autumn when the shoots are 15-20 cm long, we will carry out topping the short shoots to promote branches and increase the length of the branches.

9. Fertilizer and water management: Apply germination fertilizer, chemical fertilizer and fruit-preserving fertilizer in spring every year, apply fruit-enhancing fertilizer in summer, apply pre-harvest fertilizer in autumn and base fertilizer in winter for a total of 6 times. Adopt the method of "several applications, 2 heavy applications and 4 light applications", closely combine organic fertilizer with farmyard manure, apply deeply to all the areas in the garden, adopt a multi-pronged approach and apply heavy organic fertilizers . This type of fertilization is safe and effective. The soil has good water storage capacity, can often maintain a moist environment, and has fewer rotten fruits.

10. Bagging for navel oranges: Generally, special paper bags for citrus are used, with one side milky white and transparent, and the specifications are 19cm*15cm. The bagging stage is after the second physiological fruit drop; the bag removal stage can be carried out simultaneously with fruit harvesting. Bagging navel oranges can effectively prevent the formation of navel yellow rotten fruits, sun-scalded fruits and textured fruits; prevent fertilizers from contacting the fruit surface and reduce the amount of agricultural residues in the fruit; and can improve the product grade and market price of the fruit. The economic benefits after bagging are significantly enhanced.

That’s it