Degradation and bioaccumulation characteristics of ciprofloxacin in soil-vegetable system. Exchange of Proton and Major Elements in Two-Layer Canopies Under Acid Rain in a Subtropical Evergreen Forest in Central-South China Root morphological characteristics of barley genotype with high phosphorus efficiency under phosphorus stress. Effects of controlled release nitrogen fertilizer application on dry matter accumulation and nitrogen balance of summer maize. A DYNAMIC FOOD CHAIN MODEL AND PROGRAM FOR PREDICTING THE CONSEQUENCES OF NUCLEAR ACCIDENT CYCLING OF SILICON, ALUMINIUM, IRON AND MANGANESE IN GRASSLAND SOIL-VEGETATION COMPONENTS