[Biological availability of zinc lignosulfonate on calcareous soil of north Guoangdong Province].
Zinc lignosulfonate (Zn-LS) is a kind of organic fertilizers made from the by-products of paper industry. With leach and plot treatments, this paper studied the difference of the biological availability between Zn-LS and an inorganic Zn-fertilizer on calcareous soil of north Guangdong Province. The results indicated that the Zn of Zn-LS was less absorbed by calcareous soil. In soil B, when applying 10 mg x kg(-1) Zn, the dissolved amount of Zn-LS was 65.2% higher than that of inorganic Zn-fertilizer, corn grew well, and its biomass was higher. In soil A, when applying 10 mg x kg(-1) Zn of Zn-LS, the biomass of corn increased by 16.3%, and its Zn content was 81.2% higher. Therefore, biological availability of Zn-LS was better than that of inorganic Zn fertilizer.
Wang
Dehan
D
Department of Environmental Science and Engineering, South China Agricultural University, Guangzhou 510642, China. dehanwang@scau.edu.cn
Lin
Huidong
H
Peng
Junjie
J
Xiao
Xiongshi
X
Liao
Zongwen
Z
D001682:Biological Availability; D018533:Biomass; D005308:Fertilizers; D008031:Lignin / Q000031:analogs & derivatives* / Q000494:pharmacology; D012987:Soil / Q000032:analysis*; D003313:Zea mays / Q000254:growth & development*; D017967:Zinc Compounds / Q000494:pharmacology*
D005308:Fertilizers; D012987:Soil; D017967:Zinc Compounds; C001545:lignosulfuric acid; D008031:Lignin