Mastery of Basic Addition and Subtraction Facts: How Much and What Kind of Drill, at What Time is Sensible?
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Some long-run effects of growing markets and renewable fuel standards on additives markets and the US ethanol industry Gallagher, P; Shapouri, H; Price, J; Schamel, G; Brubaker, H (Elsevier, 2003)The effects of likely regulatory and policy changes in the US gasoline and additives market are compared to a reference baseline. The baseline reflects existing EPA policies about fuel quality regulation and likely petroleum ...
Effects of zinc addition to a copper-contaminated vineyard soil on sorption of Zn by soil and plant physiological responses Tiecher TL; Ceretta CA; Tiecher T; Ferreira PAA; Nicoloso FT; Soriani HH; Rossato LV; Mimmo T; Cesco S; Lourenzi CR; Giachini AJ; Brunetto G (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2016)The occurrence of high levels of Cu in vineyard soils is often the result of intensive use of fungicides for the preventive control of foliar diseases and can cause toxicity to plants. Nowadays many grape growers in Southern ...