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研究了湖南省主要稻田土壤的钾素含量、土壤各粒级的含钾量及含钾矿物;比较了3种作物对土壤钾的吸收能力。
Potassium content, potassium content and K-bearing minerals in the main paddy soils of Hunan Province were studied. Potassium absorption capacity of three crops was compared.