MONITORING OF SOIL NITRATE RESIDUES BY ELECTROULTRAFILTRATION (EUF)

被引：2

作者：

BUFO, SA ^{[1
]}

PIZZIGALLO, MDR ^{[1
]}

CECCA, NGG ^{[1
]}

MAGNIFICO, V ^{[1
]}

机构：

[1] UNIV BARI,CNR,CTR ORTICULTURA IND,I-70126 BARI,ITALY

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 1990年 / 39卷 / 01期

关键词：

Brassica campestris L; electro-ultrafiltration; Nitrates; residues; soil;

D O I：

10.1080/03067319008027679

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An investigation on nitrate residues in a nitrogen fertilized silty-clay soil of Southern Italy was carried out using the Electro-ultrafiltration method (EUF). The method, previously employed to determine several nutrient fractions of different plant availability, allowed us to evaluate periodically the amounts of nitrate ion in soil during the growth of Brassica campestris L. The availability of nitrates was evaluated as two different ion fractions released from soil: (1) Soluble-NO-3, i.e., an easily available and quickly released fraction, and (2) Reserve-NOj, i.e., a more firmly retained and slowly released form. Results showed that nitrate concentration was influenced by the source of fertilizer used. The increase of nitrate concentration in soil also influenced the level of the ion in the edible part of the plants, suggesting a potential toxicity for human health. © 1990, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：23 / 29

页数：7

共 18 条

[1] COMPARISON OF ELECTRO-ULTRAFILTRATION (EUF) AND EXTRACTION BY 0.01-M CACL2 FOR THE DETERMINATION OF AVAILABLE SOIL-NITROGEN [J].