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自1984年以来,我们分别在雄县(三年)、校农场进行定位培肥试验,校内盆栽试验,并分别对潮土及潮褐土区的重点县市(衡水、雄县、清苑、深泽、无极等)进行了调查研究。采集不同肥力水平麦田土样进行分析,基本上弄清了潮土的肥力状况及肥力特征。1987年着重研究:(1)不同肥力潮土及潮褐土的养分贮量及有机质品质:
Since 1984, we have carried out localized fertilization experiments and potted plants experiments in Xiongxian (three years) and school farms, respectively, and conducted a series of field experiments in major counties and counties (Hengshui, Xiongxian, Qingyuan, Shen Ze, Promise, etc.) conducted a survey. Collection of different fertility levels of wheat field soil samples were analyzed basically to ascertain the status of soil fertility and fertility characteristics. In 1987, the research focused on: (1) nutrient storage and organic matter quality of different fertility tide soil and moist cinnamon soil: