Longan is planted in different seasons. Longan is also called Longan. The best period of longan growth in a year is from the end of February to the middle of March or1early October.

Common longan varieties include Shiyuan Longan, Chulianglongyan, Yan Guang Longan, Gushan No.2 Longan and Dawuyuan Longan. The cultivation time of different varieties is mostly the same.

Longan harvest season

According to different regions and varieties, the ripening time of longan is also different. The maturity of longan abroad is generally in summer. Longan matures in autumn in China, and the maturity in different regions is slightly different. When the planting conditions are good, the yield per mu of longan is generally around 400 kg.

Longan planting steps and methods

1. Land selection: cultivated land with loose soil, deep soil layer, good drainage, close to water source and soil pH value between 5.5 and 6.5;

2. Excavation of colonial hole: firstly, excavate the colonial hole with a length of 0.7~ 1. 1m, a width of 0.7~ 1. 1m and a depth of 0.6~0.8m, and pile the excavated topsoil and subsoil separately, and excavate the topsoil from the ground with a depth of/kloc.

3. Selection of seedlings: Julia, the height of longan seedlings is 75~95cm, and the diameter is1.5 ~ 4 cm;

4, root attachment treatment: performing root attachment treatment on the selected longan seedlings;

5. Transplanting: the longan seedlings treated by root system are vertically planted in the center of the dug planting hole, and the periphery is tamped with soil, and the diameter of the covered mound is 0.6~0.8m, which is 0.277-0.85m higher than the ground;

6. Investigate the shortage of replanting: after 7-9 days of transplanting, observe the growth status of longan seedlings and replant them immediately if necessary;

7. Fertilization management: topdressing begins half a month after transplanting. The circulation mode of agricultural fertilizer-chemical fertilizer-agricultural fertilizer is adopted. The first application of agricultural fertilizer. After applying 4-6 kg farm manure to each plant for half a month, each plant is applied with 0.5-0.8 kg urea, 0.4-0.6 kg phosphate fertilizer and 0.3-0.5 kg potassium sulfate with a mass concentration of 0.2%-0.25 barrel;

8, shaping and pruning: after the longan seedlings are planted and survive, the height of the plants is 60-80 cm, and each plant leaves 4-7 buds in different directions;

9. Application of foliar fertilizer: foliar fertilizer is sprayed one week before flowering. The foliar fertilizer is potassium chlorate fertilizer solution with the mass fraction of11000 ~ 5/1000;

10, spike protection: no spike, no fertilization. After heading, spraying 0.2-0.25% paclobutrazol when spring buds are 4-5 cm long, and applying 0.6-0.7 kg of nitrogen fertilizer, 0.6-0.7 kg of potassium fertilizer and 0.8-0.9 kg of phosphorus fertilizer;

1 1, thinning flowers and fruits: all branches have long spikes, and the total number of spikes accounts for 25%~35% of the total number of spikes. When the diameter of the fruit with weak tip is 2~4mm, the over-dense spikelets, weak fruits, fine fruits, diseased fruits and deformed fruits are cut off and sprayed 900~ 1000 times.

12, introduce bees, collect flowers and pollinate;

13, pest control and bird control: spraying malathion 800~ 1000 times in March, trichlorfon 800~ 1000 times in April ~ May, and acephate 800~ 1000 times in June ~ July, from late flowering stage to young fruit stage.

14. Longan fruit picking and post-harvest management: pick the longan fruit immediately after it matures, shallow turn the cultivated land every other year during cultivation, and use quicklime to improve the soil.