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In order to investigate the effect of N form on dry matter (DM) formation and water uptake rate, French bean (Phaseolus vulgaris L. `Sotaxa') plants were grown with a split-root system. Three treatments were compared: sole nitrate (NO−3) supply (NN), sole ammonium (NH+4) supply (AA) and spatially separated supply of NO−3 and NH+4 (NA). The pH of the nutrient solutions was kept constant at 6.3...
Comparative studies on the effect of nitrogen (N) form on iron (Fe) uptake and distribution in maize (Zea mays L. cv Yellow 417) were carried out through three related experiments with different pretreatments. Experiment 1: plants were precultured in nutrient solution with 1.0×10−4 M FeEDTA for 6 d and then exposed to NO3–N or NH4–N solution with 1.0×10−4 M FeEDTA or without for 7 d. Experiment 2:...
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