一、深翻改土栽培板栗的土地大多是山岭薄地,立地条件较差,造林前一般需进行深翻改土。荒山可采用鱼鳞坑或水平阶整地;丘陵进行全面耕翻,耕翻深度要达60厘米以上,然后再进行大穴整地,规格为长、宽各100厘米,深60厘米。挖穴时表土和心土要分开堆放,回填时将表土填在地平面下30~4 First, the deep change soil cultivation Chestnut most of the land is a thin mountain, poor site conditions, afforestation generally require deep conversion of soil. The barren hills can be planted with fish-scale pits or horizontal steps; the hills can be fully tillage, the tillage depth can reach more than 60 centimeters, and then large-scale earth preparation can be carried out. The specifications are long, wide and 100 centimeters deep, and 60 centimeters deep. When digging the topsoil and heart and soil to be separated from the pile, fill the topsoil fill in the ground plane 30 ~ 4