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- Elwali, A. M. O.; Gascho, G. J.; Sumner, M. E.
- Agronomy journal 1985 v.77 no.3 pp. 506-508
- plant nutrition; Zea mays; fertilizers; nutrient requirements; Diagnosis and Recommendation Integrated System; Georgia
- Walworth, J. L.; Summer, M. E.; Isaac, R. A.; Plank, C. O.
- Agronomy journal 1986 v.78 no.6 pp. 1046-1052
- plant nutrition; Medicago sativa; tissue analysis; crop yield; soil fertility; nutrient requirements; chemical constituents of plants; Georgia; Midwestern United States
- ... Foliar tissue norms were developed for ‘Apollo’ alfalfa (Medicago sativa L.) grown on two highly weathered soils in the Georgia Piedmont for use in the diagnosis and recommendation integrated systems (DRIS). These norms were generated from a data bank comprised of tissue nutrient composition and plant yield and consisting of 3915 field observations. A yield of 3.5 Mg ha⁻¹ per cut was used to divid ...