Physiological characteristics of inbred line maize seedling root under phosphorus stress Effects of atmospheric N sedimentation on growth and P efficiency of Pinus Massoniana mycorrhizal seedlings under low P stress Morphology of wheat roots under low phosphorus stress THE NUTRIENT DISTRIBUTION IN PLANT AS EFFECTED BY APPLICATION OF N,P FERTILIZER Evaluation of Phosphorus Efficiency in Rapeseed (Brassica napus L.) Recombinant Inbred Lines at Seedling Stage Uptake and Use of Sparingly Soluble Phosphorus by Rice Genotypes with Different P-efficiency Characteristic of growth and development of maize inbreds with different phosphorus efficiency under low-P stress Root architecture and phosphorus efficiency of different provenance Pinus massoniana under low phosphorous stress. Aerenchyma Formation in P Stressed Maize Roots and Its Genotypic Difference