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Nutrient Uptake of Alfalfa as Influenced by Soil Processing and Greenhouse Potting Methods¹

ABSTRACT

Uptake of P, K, Ca, Mg, Zn, Cu, Fe, and Mn by alfalfa (Medicago sativa L.) was studied as affected by soil processing and potting methods. Aggregate destruction resulted in increased uptake of all nutrients except K and Cu. Air-drying of soils prior to potting decreased the uptake of P. There was no significant interaction or processing and potting methods with soil horizon being studied.

¹ Published with the approval of the Director as Paper no. 2926 of the Journal Series, Nebraska Agr. Exp. Sta., Lincoln.

² Assistant Professor of Agronomy.

Received for publication July 27, 1970. Accepted for publication November 5, 1970.