A STUDY ON THE ACCUMULATION AND DISTRIBUTION OF DRY MATTER IN POST-FLOWERED SWEET SORGHUM Accumulation and distribution of N, P and K in Platycodon grandiflorum and their relationships to dry matter production Accumulation and distribution of nitrogen,phosphorus,and potassium in Cynanchum bungei Decne and their relationships to dry matter production Accumulation and Transportation Characteristics of Dry Matter after Anthesis in Different Mung Bean Cultivars