Interactive effects of low phosphorus and drought stress on dry matter accumulation and phosphorus efficiency of soybean plants Studies on the critical values of phosphorus in wheat genotypes with phosphorus efficiencies Genotypic differences in photosynthetic characteristics in Brassica napusat different phosphorus levels Phosphorus nutrition characters for new soybean germplasms with high phosphorus efficiency in acid red soils Genotypic Variation of Stylosanthes guianensis in P Efficiency on an Acid Soil of Red Earth Region The mechanism of rhizosphere phosphorus activation of two rape genotypes(Brassica napus L.) with different P efficiencies Interactive effects of P deficiency and Al toxicity on soybean growth: A pot experiment with acid soil. Differences in root architecture of several Stylosanthes genotypes and their phosphorus efficiency 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 Effects of atmospheric N sedimentation on growth and P efficiency of Pinus Massoniana mycorrhizal seedlings under low P stress Photosynthetic characteristics of wheat varieties with different phosphorus efficiency and their hybrid F1 under Pi-deficiency condition Preliminary Studies on Mophological and Physiological Mechanisms of Stylosanthes for P Efficiency on Acid Soil