How to grow orange trees to make them delicious? How do you grow orange trees to be productive?

Newly planted orange tree fertilization should be applied diligently, mainly nitrogen fertilizer, with the application of phosphorus and potassium fertilizer, spring, summer and autumn shoot extraction period fertilization 5-6 times, each time each plant applied ammonium carbide or urea catty. 1-3 year old young trees should be applied with 100-400g of pure nitrogen per plant, and the ratio of nitrogen, phosphorus and potassium should be as follows: (:

Advisable. Fertilizer and water management: 1) Fertilization principle: The needs of blood orange for various nutrients should be fully met, and more organic fertilizer and rational application of inorganic fertilizer and formula fertilizer should be advocated. Fertilization was guided according to the results of leaf analysis, orchard soil analysis, and phenological period of blood orange.

2) Fertilization method: soil fertilization is the main method, combined with foliar fertilization. Methods such as annular furrow application, strip furrow application, hole application and soil surface fertilization are adopted.

3) Fertilization of young trees: diligent and thin application, mainly nitrogen fertilizer, with the application of phosphorus and potassium fertilizer, fertilization in spring, summer and autumn shoots for 5-6 months, each time each plant is applied ammonium carbide or urea catty. 1-3 year old young trees should be applied with 100-400g of pure nitrogen per plant, and the ratio of nitrogen, phosphorus and potassium should be as follows: (:

Advisable. Adult trees should be fertilized four times, namely germination fertilizer, fruit preservation fertilizer, fruit strengthening fertilizer, and fruit picking fertilizer.

The amount of fertilizer is generally 2-3 kg of germination fertilizer, and a load of manure water; 1-2 kg of phosphorus and potassium fertilizer + 1 kg of chemical fertilizer; 1-2 kg of fertilizer + 1-2 kg of phosphorus and potassium fertilizer; Fruit fertilizer (base fertilizer) is mainly organic fertilizer, and 50-100 kg of organic fertilizer + 1-2 kg of chemical fertilizer is applied.

4) Water: Irrigate when the soil is dry, and drain water when it is waterlogged.

The reason why the leaves of the orange tree that have been planted for half a year begin to turn yellow is first of all to remove the lack of fertilizer, because it is generally planted with bare roots, and it is rarely planted with soil mass, and the actual recovery period after it is planted is two months, and the real growth is less than four months, and the soil quality of the garden is not too bad, and there is no shortage of fertilizer like a mountain. The possible reasons are as follows:

1. Stagnant water, soaked and damaged roots.

2. When planting, the farmhouse fertilizer that has not been alcoholized is put in, and now the temperature of the farmhouse fertilizer alcohol has burned the roots, and it has basically lost the due role of the roots.

3. The base fertilizer is not mixed with the soil or there is no pure soil layer of about 10 cm between the roots of the new seedlings, so that the newly sprouted young roots are in direct contact with the fertilizer, and they cannot withstand the osmotic pressure generated by the concentration of fertilizer and lose water and wither.

1) Soil structure and texture.

The soil structure was best with aggregate structure, and the soil texture was better with loam.

2) Soil pH

The pH of citrus soil is pH 6 0 6 5.

Generally speaking: sandy loam, loam is better, the soil is deep, rich in organic matter, loose and breathable, good drainage and irrigation conditions, low groundwater level, slightly acidic to neutral soil is the most suitable.

1. Seed selection. Orange selection must choose full, complete seeds, without any damage, breakage, discoloration and other defects, but also to distinguish the freshness of the seeds, because wrinkled and stale seeds will not germinate and grow, and then the selected seeds are rinsed in clean water to remove the pulp and residue on the surface, in order to better germinate.

2. Soaking. Soak the selected seeds in warm water for 24 hours, so that the epidermis can have the function of softening, after 24 hours, put it in a towel to dry the water inside, and then soak it in clean water for about 5 days, in order to make the germ germinate and take root faster, and change the water once a day, if it is more than 5 days or too long, it will cause the seeds to rot and die.

3. Sow seeds. After soaking the seeds into the potting soil, the potting soil should also ensure a certain permeability, the soil quality is selected from the native soil mud in the woods, the seeds are pressed inside, and some rotten wood and pebbles are added to the surface to fill in order to better drain the water, and then cover it with soil to ensure sufficient light conditions every day, remember not to expose to the sun.

4. Fertilization. Orange seeds are also in great demand for fertilizer, because the metabolism of the roots of new orange seeds is faster, and more nutrients are needed to supplement, about once every two weeks, and the soil must be washed every week, otherwise the roots can not absorb nutrients due to the soil becoming dry, but not too often, and then put it in a mild environment, give sufficient sunlight conditions, so that the leaf epidermis will be born.

Orange trees are generally planted and propagated with seedlings, and the soil is renovated before planting, and pesticides are sprayed for disinfection, and the seedling planting area is about meters; Nitrogen and potassium compound fertilizer for fertilization, about once a month; watering once every half a month; Seedlings are susceptible to canker disease and are sprayed with copper oxychloride solution for prevention.

In the propagation of orange trees, the soil is renovated and loosened, the oxygen content of the soil is increased, and the microorganisms in the soil are active; Do not plant other crops in the rolling farm, such as cabbage, melons and fruits; It also disinfects the soil before propagation to kill germs that are not conducive to growth.

The propagation technology of orange trees is to plant seedlings, buy seedlings on the market, plant them in the soil, and the seedlings with a height of centimeters need to be planted in an area of about meters; After planting, the soil is covered with water, and covered with dead leaves, which can effectively retain soil moisture from evaporation.

Fertilization method is generally based on soil surface fertilizer, when the seedlings are in the growth period, to choose nitrogen, potassium compound fertilizer, about once a month to fertilize, each plant needs 250 grams of urea, more than one year of seedlings need to apply pure nitrogen fertilizer about catty; Wait for the soil to dry up before watering, about once every half a month.

Orange tree seedlings are the most susceptible to canker infestation, and when the seedlings grow their first fork, they need to be sprayed with a 200-fold diluted copper oxychloride solution for prevention, and every time a new branch grows, they need to be sprayed with pesticides once, and the spraying interval is about 25 days.