The effect of N∶P supply ratio on P uptake and utilization efficiencies in Larix olgensis Henry. seedlings Comparison of research methods for silicon uptake kinetics of rice Potassium Accumulation and Root Physiological Characteristics of Potassium-Enriched Flue-Cured Tobacco Genotvpes Effect of Different Nitrogen Forms on Root Growth and Dynamic Kinetics Characteristics for Citrus sinensis×Poncirus trifoliata Tolerance of wheat genotypes to Al toxicity in relation to their rhizosphere pH change, NH4+ and NO3- uptake, and nitrate reduction under Al stress Root Morphology and Zn2+ Uptake Kinetics of the Zn Hyperaccumulator of Sedum alfredii Hance Changes of Root Architecture and Phosphorus Uptake by Roots of Malus hupehensis(Pamp) Rehd. under the Condition of Phosphorus-deficiency PHOSPHATE UPTAKE CHARACTERISTICS OF KINETICS AND PHOSPHORUS EFFICIENCY IN CLONES OF POPLAR Effects of Cool and Cold Conditions on Nitrogen Uptake Kinetics in Malus baccata Borkh. Seedlings Effects of Cool and Cold Conditions on Nitrogen Uptake Kinetics in Malus baccata Borkh. Seedlings Study on the uptake kinetics of ammonium and nitrate In Lolium multiflorum Lam.