A new slow-releasing iron fertilizer

被引：28

作者：

Chandra, Partha K. ^{[1
]}

Ghosh, Kunal ^{[2
]}

Varadachari, Chandrika ^{[1
]}

机构：

[1] Raman Ctr Appl & Interdisciplinary Sci, Kolkata 700075, W Bengal, India

[2] Univ Calcutta, Dept Agr Chem & Soil Sci, Kolkata 700019, W Bengal, India

来源：

CHEMICAL ENGINEERING JOURNAL | 2009年 / 155卷 / 1-2期

关键词：

Micronutrient; Iron; Polyphosphate; Slow-release; Water insoluble; XRD; MICRONUTRIENT FERTILIZERS; MANGANESE; COPPER; ZINC; SOIL;

D O I：

10.1016/j.cej.2009.07.017

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper describes the development of an environment-friendly, slow-release fertilizer of the micronutrient iron. The compound is water insoluble, and is based on a polymeric phosphate structure. Kinetics and solubility of products in the goethite [FeO(OH)]-H3PO4 and [FeO(OH)]-MgO-H3PO4 systems were studied at 170-300 degrees C. Polymerization patterns were complex. The presence of Mg as additive, improved product properties. The fertilizer was prepared by polymerization of goethite, magnesium oxide and phosphoric acid to an optimized chain length at 200 degrees C, followed by neutralization with magnesia. The fertilizer was soluble in citrate and DTPA. A significant increase in the yield of wheat and uptake of iron was observed at a dosage of 2 kg/ha Fe as the slow-release fertilizer. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：451 / 456

页数：6

共 22 条

[1] New slow-releasing molybdenum fertilizer [J].

Bandyopadhyay, Siladitya ;

Bhattacharya, Ishita ;

Ghosh, Kunal ;

Varadachari, Chandrika .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2008, 56 (04) :1343-1349

[2] Development of a novel slow-releasing iron-manganese fertilizer compound [J].

Bhattacharya, Ishita ;

Bandyopadhyay, Siladitya ;

Varadachari, Chandrika ;

Ghosh, Kunal .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2007, 46 (09) :2870-2876

[3] THE INFRA-RED SPECTRA OF SOME INORGANIC PHOSPHORUS COMPOUNDS [J].

CORBRIDGE, DEC ;

LOWE, EJ .

JOURNAL OF THE CHEMICAL SOCIETY, 1954, (FEB) :493-502

[4]

Cunniff P., 1995, Official Methods of Analysis of AOAC International, V1

[5]

DATTA M, 1992, PEDOLOGIE, V42, P297

[6]

Jackson ML., 1973, Soil Chemical Analysis-Advanced Course: A Manual of Methods Useful for Instruction and Research in Soil Chemistry, Physical Chemistry of Soils, Soil Fertility, and Soil Genesis, DOI DOI 10.1002/JPLN.19590850311

[7]

*JCPDS, 1984, POWD DIFFR FIL

[8] DEVELOPMENT OF A DTPA SOIL TEST FOR ZINC, IRON, MANGANESE, AND COPPER [J].

LINDSAY, WL ;

NORVELL, WA .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1978, 42 (03) :421-428

[9]

MORTVEDT JJ, 1972, MICRONUTRIENTS AGR S

[10]

Ranney M., 1978, Fertilizer additives and soil conditioners

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