近两年因果园开发热而带来新植荔枝面积迅速扩大,不少地区果园因缺乏技术和管理经验,造成种植2—3年树冠直径仍不足1米、抽果仍遥遥无期的局面,主要原因之一是对扩穴改土工作缺乏认识。由于建园的旱地、山地一般比较瘦瘠,虽然定植前开穴埋肥改良土壤, Due to the rapid development of causal orchards in recent two years, the area of ​​newly planted lychees has rapidly expanded. Due to the lack of technical and management experience in many orchards, the crown diameter of 2-3 years after planting is still less than 1 meter. The results are still far from expected. One of the reasons is the lack of understanding of the work of expanding the hole for soil improvement. Due to the construction of dry land in the mountains, the mountain is generally thinner, although planting holes before planting to improve the soil,