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自1973年Beaufils提出综合诊断施肥法(Diagnosis and Recommendation Integrated System,简称DRIS)后,Sumner等人相继制订了大豆、玉米、甘蔗、马铃薯和小麦等农作物的DRIS标准,并在生产中获得了广泛的应用。但在柑桔生产中,直到1984年Beverly等人才建立伏令夏橙的DRIS标准。而对椪柑的DRIS标准则至今尚未见报道。本文根据庄伊美等报道的福建省24个高产(亩产2000—5000公斤)椪柑园的资料,试图制订椪柑的DRIS初步标准,以供生产上应用之参考。
Since Beaufils proposed the Diagnosis and Recommendation Integrated System (DRIS) in 1973, Sumner et al. Have successively formulated DRIS standards for crops such as soybean, corn, sugarcane, potato and wheat and have obtained a wide range of application. However, in citrus production, it was not until 1984 that Beverly et al. The DRIS standard for citrus has not yet been reported. Based on the data of 24 high-yielding (2000-5000 kilograms per mu) 椪 orange orchard in Fujian province reported by Zhuang Yi-mei et al., This paper tries to draw up the preliminary DRIS standard of 椪-mandarin for the reference of production application.