选用优良板栗新品系──2次结实板栗对5年生低产栗园进行多头高接改造，采取适时抹芽摘心、病虫防治、深翻改土、合理修剪等综合技术措施，其嫁接茬成活率达100％、接穗成活率达96％，高接换种后栗园，当年改接当年挂果，每公顷产量第1年达306.25kg，第2年则高达981kg，是原栗园（未改接）的5.1倍，且2次坚果商品价值均较高，经济效益显著。 Selection of good chestnut new lines ─ ─ 2 times the chestnut chestnut yield of 5-year-old low-yielding high transformation, take timely wiping the pinning, pest control, deep soil improvement, reasonable pruning and other integrated measures, the survival rate of grafted stubble Up to 100%, scion survival rate of 96%, after the high exchange seed chestnut garden, then the fruit then to fruiting, yield per hectare reached 306.25kg in the first year, up to 981kg in the second year, is the original chestnut garden ) 5.1 times, and twice the value of nuts are higher, significant economic benefits.