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How to Manage Longan in July and August
1. Determine the number of autumn shoots according to litchi varieties, orchard conditions, and management levels. In general, young trees grow and thrive, and trees grow 2-3 times in autumn shoots, but the results are many, the general tree is placed 1-2 times, while the elderly tree is generally put on a fall shoot due to its slow growth. In areas with higher temperatures in Hainan Island and in the west of Guangdong, it may be appropriate to add 1-2 times of autumn shoots. 2. Determine the best attack time for the last autumn shoot. The time for the last fall shoot is based on the flower bud differentiation of each species. According to the research, the red flower bud differentiation period of March in early-maturing varieties is from October to November, so the last autumn shoots should be mature in the late October at the end of September, otherwise it will affect the flower bud differentiation. The mid-mature varieties of flower bud differentiation in November-December, the last autumn shoots matured in late November, but the exception of wolfberry laughter, it can be the same as late-maturing varieties put the last autumn shoots, in late December mature. The longer the last autumn shoots are drawn out, the longer it takes for them to grow, so consider whether they are ahead of time when attacking. The late autumn shoots of early maturing varieties were extracted in late August. The mid-maturing varieties were in mid-September, and the late-maturing varieties (including Zizixiao) were from late September to early October. In principle, the place where the low temperature arrives early should be released early, and the place where the low temperature arrives later can be postponed. Autumn shoots are normal, and have a lot to do with water supply. Many orchards cannot attack autumn shoots due to lack of water. 3, longan management is mainly to prevent fruit cracking and pest control. Many longan varieties are in fruit period in July and require a lot of water and nutrients. In late June, there is no fertility park for fertilization, and it strives to strengthen the fruit fertilizer in early July. When there is a crack, spraying ganoderma or photosensitizer 1-2 times, while paying attention to the prevention and treatment of locusts, some early maturing varieties can be harvested in late July. August is a long-harvest season for longan harvesting. In addition to harvesting, fertilization and restoration of tree vigor are required. The longan is more delayed than litchi, and it often encounters drought when attacking autumn shoots. Therefore, it is necessary to prepare for flooding. Measures.