Research of Phosphorus Accumulation and Dynamics of Transport in Soybean

Phosphorus is an important composition elements in soybean,and also very important for yield formation.Experimental materials were SN14,XJH and MSD,the dynamics of phosphorus content of different organs was determined in different development periods and regulation of transport.The results showed that:(1)Phosphorus content in leaf,petiole,stem,root decreased with growth of soybean plant,dynamics of phosphorus content in legume decreased and then increased.(2)Phosphorus accumulation increased with growth of soybean plant,and it changed as a single peak curve in leaf,petiole,stem,root,respectively,phosphorus accumulation in legume increased all the time.(3) The mean of three breeds ratio of phosphorus accumulation in different development periods and total phosphorus accumulation was 27.83%±12.57%,38.47%±3.87%,33.70%±8.93%.(4) Leaf was the center of phosphorus accumulation in earlier growth stage,next was stem,legume was the center of phosphorus accumulation in late growth stage.(5)In legume,40.04% phosphorus was from vegetative organs,ratio of phosphorus which was from leaf,petiole,stem,root,was 9.64%±3.95%、6.89%±3.16%、19.97%±3.97%、3.53%±1.27%,respectively.