Comunicação apresentada no I Congresso Ibérico de Ciências Hortícolas, 18 a 21 de Junho de 1990 em Lisboa. ; The effect of increasing Ca+2 concentration in nutrient solutions containing different NO3-/NH4+ ratios on carob plants was assessed on growth rate chlorophyll content and gas exchange. A significant increase on growth was observed when increasing Ca+2 concentration from 3 to 6 mM in media containing ni...
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