What are the planting techniques of sugar orange? The management technology is here all year round!

Sand sugar orange is a famous variety of citrus, which is very popular because of its high nutritional value and sweet and sour taste. It is also one of the citrus varieties with stable and high yield. it can be planted for 3 years and flourish after 5 years. So, what are the planting techniques of sugar orange? The management technology is here all year round!

January and January

1. Shaping and pruning

According to local conditions, tree pruning, proper promotion and suppression, ventilation and light transmission, three-dimensional results. The dry height is 20-40 cm, the main branches (3-4 branches) are scattered on the trunk, the angle of the main branches is 30-50 °, and there are 2-3 secondary branches on each main branch. Generally speaking, after the formation of the third main branch, the central trunk of the class is cut off and twisted to one side as the fruiting branch group.

2. Clean the countryside

The branches of diseases and insect pests should be removed and burned out of the garden to reduce the source of diseases and insect pests. Spray 1.5-2 degrees stone sulfur mixture or 95% oil emulsion 50-80 times plus organophosphorus pesticides to kill overwintering diseases and insect pests and clean the countryside.

February-April

To control red spider adults, egg masses, shell insects, moss, lichens, etc., it is appropriate to apply them before spring bud germination from late February to early March. Multi-flowering trees sparse part of the fruiting mother branches of flower buds and promote the fruiting mother branches of the next year.

March and May

Fertilizer and water management, application of plant hormones, spring clipping (control of spring shoots). Young fruits control scab, red spiders, aphids, leaf rollers, long white scale, bran scale, sagittal scale, spiny whitefly and so on.

April and June

1. Pruning early according to citrus species, tree potential, yield, etc.

2. Improper fertilization is easy for summer shoots to sprout and compete with fruit for nutrients, resulting in fruit drop.

3. Control of diseases and pests such as leaf roll moth, red wax scale, long white scale, sagittal scale, rust tick and so on.

May and July

Application of strong fruit fertilizer: the rapid expansion of fruit plus autumn shoot stage, plus flower buds to start physiological differentiation. The diurnal temperature of flower bud differentiation is about 20 ℃ and 10 ℃ respectively, and the soil temperature of root growth is about the same as that of aboveground. Reduce surface temperature, reduce water evaporation, resist high temperature and drought.

Control of diseases and insect pests: rust wall lice, red spider, leaf miner, cicada, longicorn beetle, canker and so on.

June, August-October

The fruit quality was affected most in the later stage, nitrogen control and ring cutting. In addition, the control of leaf miner, aphids, anthracnose, whitefly, rust mites, anthracnose and other pre-harvest fruit drop and pest control. Pre-harvest fruit drop is often accompanied by insect injury, brown rot and green and green mold, and some varieties have cracked fruit.

July, November-December

Reduce the soil water holding capacity before fruit harvest, reduce the effect of nitrogen fertilizer, increase the fruit sugar acidity, and make the fruit strong flavor. In the frost-free area, the tree is fully ripe, the sugar content is increased by 1-2 degrees, and the color is more bright.

In addition, the growth and development, flowering and fruiting of citrus trees are closely related to temperature, sunshine, moisture, soil and environmental conditions such as wind, altitude, topography and slope direction.