Does sugar orange cultivation have a requirement for sunlight?

Tangerines themselves are shade-tolerant, but they need enough sunlight to ensure their taste and sweetness. In general, it is possible to grow between 1200 and 2200 hours of sunshine.

Of course, on planting. Of course, the cultivation of salon chrysanthemum requires sunlight. Those plants that bloom and bear fruit need to be relatively sufficient, and even if the sun is shade-tolerant, it needs good sunlight, if the sunlight is too poor.

They don't grow well, and oranges can't be very sweet. Sand sugar oranges.

The reason why it's sweet. That is, because they mature later. It's late autumn and early winter.

It has been raining for a long time. The taste of sand tangerines will also be poor.

As the saying goes, everything depends on the sun. If there is no sunlight at all, not to mention citrus fruit trees such as sugar oranges, even extremely shade-tolerant, indoor foliage plants such as coarse root grass will not grow.

Tangerine trees are shade-tolerant trees, which does not mean that they can grow without sunlight. In fact, the substances that support the development and expansion of fruits are mainly organic carbohydrates in the tree. The manufacture of organic carbohydrates is made by photosynthesis through the exposure of the leaves to sunlight.

Insufficient sunlight will affect the taste and quality of oranges, and it is best not to plant them in semi-shade. Sugar oranges, also known as: October oranges.

Originated in Huaiji, Quang Ninh, Sihui area. Growing in places where sunlight is not sufficient, in order to receive more light and improve the efficiency of photosynthesis, the leaf area increases; Photosynthesis is weaker where sunlight is not sufficient.

It is best to spray the new high-lipid film and bask in the sun, and the polymers formed can play a protective role.

The planting of sugar oranges needs to pay special attention to fertilization: in order to make the saplings of sugar oranges form a crown as soon as possible, the first year is mainly to promote the survival of seedlings, fertilization to apply thin application method, can be used to dilute manure water or dilute urea water drenching, once after the beginning of spring, after each tip two to three times, in order to promote the budding neat and stout.

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 are rented with 100-400g of pure nitrogen per tree, and the ratio of nitrogen, phosphorus and potassium is 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; Fruit-preserving fertilizer. Soil digging and planting holes: pull the line at a fixed distance, dig the planting holes, the depth and width of the holes are 80cm, and then press the green manure 50cm deep, and the backfill soil is 40cm high for planting; Ridge planting:

8 meters with furrow (ditch width 60-80, depth 40-60cm) open box, each box from 2 ridges (ridge width, ridge center distance 4m, ridge height 20-30cm). When planting, the root system of the seedling is moderately pruned and put into the planting hole**, stretch the root system, check the trillion and straighten it, and gently lift the seedlings upwards while filling the soil, so that the root system is closely connected with the soil. Fill the root water, make a 1m tray around the sapling, and cover it with chaff.

The planting specifications of tangerines vary depending on the variety, rootstock, soil, etc. Usually the anvil and the soil are fertile; Dwarf anvils or thin soils are denser. Generally, most of the planting density is 80-110 plants per mu

From January to February, the spring shoots may begin to germinate before budding. After the cold, it gradually warms up, and the new roots grow fast after planting, and the survival rate is high. The disadvantage is that the spring spouts of the year are different.

If there is no rainfall after planting, water every day for 3-4 days to keep the soil moist, and then depending on the lack of water in the plant, water once every 2-3 days until it survives. One week after planting, the hole soil has sunken slightly, and bamboo branches can be inserted to support and fix the plant, so as to prevent the wind from shaking the roots and affecting the survival. If the leaf curl is found to be serious after planting, some branches and leaves can be appropriately cut off to improve the survival rate.

Generally, half a month after planting, some plants begin to take root, and after a month, thin fertilizer can be applied, adding water to rotting acquaintance urine 5-6 times, or urea plus water to make water, apply 1-2 spoons per plant, and promote early rooting and more roots of young trees. After that, drench 1-2 times a month. Plants with new roots and leaves that have not returned to normal growth should not be fertilized too early, so as not to cause fertilizer damage and affect survival.