[Effects of nitrogenous phosphorus and potassium fertilizer on yield of Bupleurum scorzonerifolium].
OBJECTIVE
To study the effect of different fertilizer assortment (nitrogenous, phosphorus and potassium) on Bupleuram scorzonerifolium yield.


METHODS
Three factors were designed by quadratic regression and D-optimum designation.


RESULTS
As far as the biomass concerned, the best design of fertilizer was N 120. 3 - 333. 3 kg/hm(2) P2O5 0-939. 45 kg/hm(2), K2O 0 - 227. 25 kg/hm(2). As to R/T, the best design was N 62. 66 -333. 3 kg/hm(2), P2O5 0 -922. 54 kg/hm(2) , K2O 0 -227. 25 kg/hm(2). And for the root weight, the best design was N 34. 5 -333. 3 kg/hm(2), P2O5, 0 -939. 45 kg/hm2 , K2O 0-227. 25 kg/hm(2).


CONCLUSIONS
Application quality of nitrogenous, phosphorus and potassium fertilizer are closely related with yield of B. Scorzonerifolium.
Jin
Xiao-jun
XJ
College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China. jingxj@gsau.edu.cn
Chen
Yuan
Y
Lin
Hai-ming
HM
Zou
Lin-you
LY
D018533:Biomass; D029972:Bupleurum / Q000254:growth & development*; D005308:Fertilizers; D009584:Nitrogen; D010758:Phosphorus; D018517:Plant Roots / Q000254:growth & development; D010946:Plants, Medicinal / Q000254:growth & development*; D011188:Potassium; D012621:Seasons
D005308:Fertilizers; D010758:Phosphorus; D009584:Nitrogen; D011188:Potassium