即墨市岭区旱薄地花生种植面积1.4万hm~2,其主要特点是一旱:水资源枯竭,常年遇旱频率70%,地下水严重不足;二薄:土层薄,平均深度30厘米左右;三差:土质差,多为砂砾土、砂壤土;四低:养分含量低,栽培水平低。6年来,通过进行七项技术改革,使花生由前5年(1986～1990)的3014.6kg/hm~2上升到 Jimo Ling area dry peanut cultivation area of ​​14000 hm ~ 2, its main feature is a drought: water depletion, perennial drought frequency of 70%, a serious shortage of groundwater; two thin: thin soil, the average depth of about 30 cm; Three bad: poor soil quality, mostly gravel soil, sandy loam; four low: low nutrient content, low level of cultivation. In the past 6 years, through seven technical reforms, peanuts rose from 3014.6kg / hm2 in the first five years (1986-1990) to