木质素锌肥在粤北石灰性土壤上的生物有效性研究

应用生态学报 ›› 2004, Vol. ›› Issue (7): 1236-1240.

木质素锌肥在粤北石灰性土壤上的生物有效性研究

王德汉, 林辉东, 彭俊杰, 肖雄师, 廖宗文

华南农业大学环境科学与工程系, 广州 510642

收稿日期:2003-03-31 修回日期:2004-03-09
通讯作者: 王德汉,男,1965年生,工学博士,农学博士后,环境工程副教授.主要从事工农业有机废弃物的化学和生物转化,肥料与农业生态环境研究和教学工作,发表学术论文30多篇.E-mail:dehanwang@scau.edu.cn
基金资助:
广东省科技攻关项目(2002C31602);科技部“863”计划项目(2001AA246023);广东省自然科学基金项目(990704);教育部重点资助项目

Biological availability of zinc lignosulfonate on calcareous soil of north Guangdong Province

WANG Dehan, LIN Huidong, PENG Junjie, XIAO Xiongshi, LIAO Zongwen

Department of Environmental Science and Engineering, South China Agricultural University, Guangzhou 510642, China

Received:2003-03-31 Revised:2004-03-09

摘要/Abstract

摘要： 木质素锌肥是利用造纸工业副产品木质素为原料合成的一种有机微肥,通过淋溶与盆栽试验研究了木质素锌肥与无机锌肥在粤北两种石灰性土壤上的生物有效性差异.结果表明,木质素螯合锌被土壤固定、吸附量要明显小于无机锌,对于土壤B,当Zn用量为10 mg·kg^-1时,木质素锌肥处理锌溶出量比无机锌高65.2%;施用木质素锌肥的处理玉米长势好,不仅生物量高过无机锌肥,而且更有利于玉米对锌的吸收,在土壤A上,当Zn用量为10 mg·kg^-1时,木质素锌肥处理的生物量比无机锌增产16.3%,植株锌含量比无机锌肥高81.2%,木质素锌肥的生物有效性优于无机锌肥.

关键词: 木质素锌肥, 无机锌肥, 玉米

Abstract: 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穔g^-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穔g^-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.

Key words: Zinc lignosulfonate, Inorganic Zn fertilizer, Corn

中图分类号:

S143.7

王德汉, 林辉东, 彭俊杰, 肖雄师, 廖宗文. 木质素锌肥在粤北石灰性土壤上的生物有效性研究[J]. 应用生态学报, 2004, (7): 1236-1240.

WANG Dehan, LIN Huidong, PENG Junjie, XIAO Xiongshi, LIAO Zongwen. Biological availability of zinc lignosulfonate on calcareous soil of north Guangdong Province[J]. Chinese Journal of Applied Ecology, 2004, (7): 1236-1240.

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