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我县是烤烟的集中产区之一,常年种植烤烟七万亩左右.近年来因土壤中含氮量逐年增多,氮磷钾比例严重失调,造成烤烟等级低劣,内在品质较差.为了寻求适宜烟叶生产的肥源,促进烟叶品质的提高.自1979年开始,在许昌地区腐肥办公室的支持下,开展了腐植酸氮磷钾肥料(以下简称腐肥)在烟草上的施用试验,并于1981-1982年进行了大面积示范,取得了显著效果.试验所用腐肥由许昌地区腐肥科研所提
Our county is one of the concentrated producing areas of flue-cured tobacco, planting 70,000 hectares of flue-cured tobacco throughout the year .In recent years due to the nitrogen content in soil increased year by year, a serious imbalance of N, P and K ratio, resulting in low-grade flue-cured tobacco, internal quality is poor.In order to seek appropriate Since 1979, with the support of the Office of Decomposing Fertilizers in Xuchang Region, the fertilizer application of humic acid nitrogen, phosphorus and potassium fertilizers (hereinafter referred to as rotten fertilizer) has been carried out on tobacco, and at From 1981 to 1982, a large-scale demonstration was carried out and achieved remarkable results.