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总结了繁昌县主要农作物缺氮、缺磷、缺钾、缺硫、缺硼、缺锌等营养诊断技术。
Summed up the main crops in Fanchang nitrogen deficiency, phosphorus deficiency, potassium deficiency, lack of sulfur, boron deficiency, lack of nutrition diagnosis of zinc and other technologies.