title: [Status and changes of soil nutrients in rhizosphere of Abelmoschus manihot different planting age].
abstract: Using soil chemical analysis method and combining with ICP-AES determination of mineral nutrition element content in rhizosphere soil of different planting age Abelmoschus Corolla Results show that along with the increase of planting age, the nitrogen (total N), available P and organic matter in rhizosphere soil of Abelmoschus Corolla content declined year by year and the soil got acidification. Heavy metal element content in agricultural land does not exceed national standards, but the content of element mercury (Hg) in rhizosphere soil of different planting age Abelmoschus Corolla declined. Request of microelement such as manganese (Mn) and zinc (Zn) had a increase tendency, but the content of magnesium (Mg) and sodium (Na) increased, and other nutrient elements had no changed rules or unchanged apparently. Consequently, exploring the change rules of different planting age Abelmoschus Corolla soil in rhizosphere as theoretical guidance of rational fertilization and subducting continuous cropping obstscles.
authors.affiliation: Nanjing University of Chinese Medicine, Nanjing 210046, China. tang_li_xia@163.com
authors.forename: Li-Xia
authors.initials: LX
authors.lastname: Tang
authors.affiliation: Nanjing University of Chinese Medicine, Nanjing 210046, China.
authors.forename: Xian-He
authors.initials: XH
authors.lastname: Tan
authors.affiliation: Nanjing University of Chinese Medicine, Nanjing 210046, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Jiangsu Xian He Chinese Herbal Medicine Science & Technology Co., Ltd., Yixing 214235, China.
authors.forename: Xiao-Ning
authors.initials: XN
authors.lastname: Liu
mesh_terms: D028483:Abelmoschus / Q000254:growth & development* / Q000378:metabolism; D009584:Nitrogen / Q000032:analysis / Q000378:metabolism; D010758:Phosphorus / Q000032:analysis / Q000378:metabolism; D011188:Potassium / Q000032:analysis / Q000378:metabolism; D058441:Rhizosphere; D012987:Soil / Q000737:chemistry*; D014131:Trace Elements / Q000032:analysis / Q000378:metabolism
chemical_list: D012987:Soil; D014131:Trace Elements; D010758:Phosphorus; D009584:Nitrogen; D011188:Potassium