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1دورية أكاديمية
المصدر: Global Change Biology; Sep2007, Vol. 13 Issue 9, p1972-1988, 17p, 5 Charts, 6 Graphs
مصطلحات موضوعية: GREENHOUSE gases, CROP management, CARBON in soils, CORN research, SOYBEAN research, CROP yields, EFFECT of temperature on plants, PLANTING time, ECOLOGY
مصطلحات جغرافية: NEBRASKA