Primary study on absorption, translocation and accumulation of N, P and K of Achyranthes bidentata.
- Author:
Xiao-yan ZUO
1
;
Hui LIU
;
Shi-yue XUE
;
Yan-lai HAN
;
Yan-li ZHANG
;
Lei WANG
;
Zhong-yi ZHANG
;
Jin-fang TAN
Author Information
- Publication Type:Journal Article
- MeSH: Achyranthes; metabolism; Biological Transport; Nitrogen; metabolism; Phosphorus; metabolism; Potassium; metabolism
- From: China Journal of Chinese Materia Medica 2008;33(16):1955-1959
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the absorption, translocation and accumulation of N, P and K on Achyranthes bidentata.
METHODThe contents of N, P and K were determined by mean of sulfuric acid-hydrogen peroxide assimilating method, vanadium-ammonium molybdate colorimetric method and flame photometric method, respectively.
RESULTThe contents of N, P and K in the plant were decreasing during the growth period. The absorption rates of the three nutrients by A. Bidentata showed double-peak curves in the whole growth period, maximum absorption rate appeared in the middle ten days of October. About 8.59 kg of N, 1.36 kg of P and 7.40 kg of K were needed to produce each 100 kg root.
CONCLUSIONThe key nutrients absorption period is in the first ten days of September and in the middle ten days of October.
