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Journal Article Interactions of Nitrogen, Phosphorus, and Potassium supplied in Leaf Sprays or in Fertilizer added to the Soil Get access GILLIAN N. THORNE GILLIAN N. THORNE Rothamsted Experimental StationHarpenden, Herts Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Experimental Botany, Volume 6, Issue 1, February 1955, Pages 20–42, https://doi.org/10.1093/jxb/6.1.20 Published: 01 February 1955 Article history Received: 25 June 1954 Published: 01 February 1955
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GILLIAN N. THORNE (1955) studied this question.
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