Effect of nutrient management on nitrate accumulation of pakchoi under solution culture Characteristics of Absorbing Ammonium and Nitrate Nitrogen of Six Crops at Different Growth Stages Alleviation effect of exogenous Ca,P and N on the growth of Chinese fir seedlings under Al stress Uptake capacity of several vegetable crops to nitrate and ammonium Effects of Solutions of Different Formula on Growth of Eucalyptus Hydroponics Hedges The Comparisons of Root System and Root Hair Morphological Characteristics among Three Desert Halophytes Uptake capacity of ammonium and nitrate to several crops Effect of Partial-root Supply of P Nutrient on the Growth and Assimilate Distri bution of Wheat Seedlings Effect of cadmium stress on physiological characteristics of garlic seedlings and the alleviation effects of exogenous calcium. Genetic Analysis of Root Growth in Rice Seedlings Under Different Water Supply Conditions Root system characters in growth and distribution among three littoral halophytes A Study on Nutrient Deficiency Symptom of Eucalyptus Seedlings Autotoxic effect of ginsenoside extrats on growth of American ginseng in different medium