我国现有板栗园种植分布，山地面积比重较大。过去常因水土保持较差、管理粗放、肥水不足而树势衰弱、空苞率高、产量低、品质差。现就山地栗园的土、肥、水管理技术介绍如下。一、增厚土层，改良土壤１．扩穴。山地栗园土层薄，定值穴小，随着树龄的增长，应定期扩槽（或扩穴? Our existing chestnut garden planting distribution, a larger proportion of mountain area. In the past due to poor soil and water conservation, extensive management, lack of fertilizer and lack of trees, empty hemp, high yield, low quality, poor quality. Now on the mountain Chestnut soil, fertilizer, water management techniques are as follows. First, thickened soil, soil improvement 1. Expand the hole. Chestnut mountain soil thin, setting point is small, with the growing age, should be regularly extended slot (or expansion of the hole?