五台山北麓的群山沟壑之中,有一处马铃薯高产优质种植区。在这一区域,26年来不倒茬、不换种,年复一年,年年丰产。该区生产的马铃薯不仅块茎硕大,而且口感甜润,沙绵味甘。为分析这一现象的形成原因,从地理环境、气象因素、土壤营养成分及微量元素含量、耕作制度等方面进行了初步探讨。结果发现该区域处于高海拔且群山环抱,病虫害很少发生,肥料主要以农家肥、厩肥为主,完全满足了马铃薯生长发育的需求,从而才能连作又丰产。
There is an area where potato yield is high and quality is excellent,which located in the northern foot of the Wutai Mountain.In this area,the yield of potato continues to be high year after year even without any rotation and seed substitution over the past 26 years.The potato tubers were not only bigger,but their taste was fabulous.In order to reveal the reason of this phenomenon,geographical environment,meteorological factors,soil nutrient component,soil trace element content and farming were investigated.This area is in the high altitude and surrounded by mountains,and rare diseases and insect pests occur.The fertilizer used is almost animal manure and farmyard manure,which could satisfied the demand of potato growth.Therefore,continuous cropping of potato could not limit the yield.