TY - RPRT TI - Nonrecirculating hydroponic system suitable for uptake studies at very low nutrient concentrations. AU - V P Gutschick AU - L E Kay PY - 1991 DO - 10.1104/pp.95.4.1125 UR - https://pubmed.ncbi.nlm.nih.gov/16668100/ ID - 16668100 ER -