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2Â¥: Originally posted by starseacow at 2013-09-28 21:14:09
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ARNON, D. I.; HOAGLAND, D. R. Crop production in artificial culture solutions and in soils with special reference to factors influencing yields and absorption of inorganic nutrients. Soil ...

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ARNON, D. I.; HOAGLAND, D. R. Crop production in artificial culture solutions and in soils with special reference to factors influencing yields and absorption of inorganic nutrients. Soil Science 1940 Vol. 50 pp. 463-485
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HOAGLAND, D. R.; ARNON, D. I. The water-culture method for growing plants without soil. Circular. California Agricultural Experiment Station 1950 Vol. 347 No. 2nd edit pp. 32 pp
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