Investigating the Use of Silage Effluent to Improve Available Phosphorus from Gafsa Phosphate Rock

被引：2

作者：

Knox, O. G. G. ^{[1
]}

Achara, O. N. ^{[1
]}

Parker, J. ^{[1
]}

Alegria, R. ^{[1
]}

Walker, R. L. ^{[2
]}

Edwards, A. C. ^{[2
]}

Watson, C. A. ^{[2
]}

机构：

[1] Scotlands Rural Coll, Edinburgh EH9 3JG, Midlothian, Scotland

[2] Scotlands Rural Coll, Aberdeen, Scotland

来源：

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS | 2014年 / 45卷 / 03期

关键词：

Effluent; nutrient cycling; phosphorus; SEWAGE-SLUDGE; SOLUBILITY;

D O I：

10.1080/00103624.2013.857412

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Plant phosphorus (P) requirements are largely met through the application of mineral fertilizers with an abundant supply of available P, but matching this supply from organic or alternative P fertilizer sources remains a challenge. An investigation was undertaken to determine if addition of phosphate rock (PR) to silage effluent could be used as a mechanism to increase available P. Addition of PR to effluent reduced recovery of available P, regardless of silage effluent batch, amount of PR added, particle size, and length of PR exposure. This reduction was attributed to a low dissolution of apatite, the presence of calcium (Ca) ions, and the formation of stable iron-phosphate precipitates. Additionally, the anion exchange membrane (AEM) method for available P analysis was found to be affected by organic acids concentrations. The implications are that dilution of silage effluent, rather than addition of PR, may provide improved short-term P availability from tank-recovered silage liquor.

引用

页码：332 / 346

页数：15

共 33 条

[1]

[Anonymous], 1999, STANDARD SOIL METHOD

[2] The use of yeasts to reduce the polluting potential of silage effluent [J].

Arnold, JL ;

Knapp, JS ;

Johnson, CL .

WATER RESEARCH, 2000, 34 (15) :3699-3708

[3] Phosphorus recovery -: an overview of potentials and possibilities [J].

Balmér, P .

WATER SCIENCE AND TECHNOLOGY, 2004, 49 (10) :185-190

[4] TRANSFORMATION OF ROCK PHOSPHATE DURING COMPOSTING AND THE EFFECT OF HUMIC-ACID [J].

BANGAR, KC ;

YADAV, KS ;

MISHRA, MM .

PLANT AND SOIL, 1985, 85 (02) :259-266

[5]

Buresh R. J., 1997, Replenishing soil fertility in Africa. Proceedings of an international symposium, Indianapolis, USA, 6 November 1996., P111

[6]

Campbell K.L., 2001, AGR NONPOINT SOURCE, P91

[7] Agronomic and environmental aspects of phosphate fertilizers varying in source and solubility: an update review [J].

Chien, S. H. ;

Prochnow, L. I. ;

Tu, S. ;

Snyder, C. S. .

NUTRIENT CYCLING IN AGROECOSYSTEMS, 2011, 89 (02) :229-255

[8] SOLUBILITY ASSESSMENT FOR FERTILIZER CONTAINING PHOSPHATE ROCK [J].

CHIEN, SH .

FERTILIZER RESEARCH, 1993, 35 (1-2) :93-99

[9] DISSOLUTION OF ROCK PHOSPHATE IN SILAGE LEACHATE [J].

CHOUDHARY, M ;

PECK, TR ;

BAILEY, LD .

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 1995, 26 (7-8) :1095-1104

[10] EVALUATION OF AGENTS FOR PREVENTING PRECIPITATION OF FERRIC HYDROXIDE FROM SPENT TREATING ACID [J].

CROWE, CW .

JOURNAL OF PETROLEUM TECHNOLOGY, 1985, 37 (04) :691-695

← 1 2 3 4 →