東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back to Search results for [ null ]

Switch To: Labeled | MARC Mode | ISBD

Utilization of gypsum as a filter ma...

Grubb, Karen Lyn.

Linked to FindBook

Google Book

Amazon

博客來

Utilization of gypsum as a filter material in agricultural drainage ditches: Impacts of land application on soil fertililty conditions.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Utilization of gypsum as a filter material in agricultural drainage ditches: Impacts of land application on soil fertililty conditions./
Author:	Grubb, Karen Lyn.
Description:	82 p.
Notes:	Source: Masters Abstracts International, Volume: 49-02, page: 1070.
Contained By:	Masters Abstracts International49-02.
Subject:	Agriculture, Soil Science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1482450
ISBN:	9781124267739

Utilization of gypsum as a filter material in agricultural drainage ditches: Impacts of land application on soil fertililty conditions.
Grubb, Karen Lyn.

Utilization of gypsum as a filter material in agricultural drainage ditches: Impacts of land application on soil fertililty conditions. - 82 p.

Source: Masters Abstracts International, Volume: 49-02, page: 1070.

Thesis (M.S.)--University of Maryland, College Park, 2010.

Agricultural drainage ditches can provide a direct connection between fields and surface waters, and some have been shown to deliver high loads of phosphorus (P) to sensitive water bodies. A potential way to reduce nutrient loads in drainage ditches is to install filter structures containing P sorbing materials (PSMs) including gypsum to remove P from ditch flow. One projected advantage would be the potential application of spent PSMs to agricultural fields to provide nutrients for crop production after the filter has lost its effectiveness. The study evaluated the feasibility of this strategy. Gypsum was saturated at two levels on mass basis of P, and applied to two soil types, a silt loam and a sandy loam and applied at both a high and low rate. The treated soils were incubated at 25°C, and samples were collected at 0, 1, 7, 28, 63, 91, 119, and 183 days after saturation.

ISBN: 9781124267739Subjects--Topical Terms:

1017824
Agriculture, Soil Science.

Utilization of gypsum as a filter material in agricultural drainage ditches: Impacts of land application on soil fertililty conditions.
LDR:01976nam 2200313 4500 001 1399691
005 20110926104359.5
008 130515s2010 ||||||||||||||||| ||eng d
020 $a 9781124267739
035 $a (UMI)AAI1482450
035 $a AAI1482450
040 $a UMI $c UMI
100 1 $a Grubb, Karen Lyn. $3 1678691
245 1 0 $a Utilization of gypsum as a filter material in agricultural drainage ditches: Impacts of land application on soil fertililty conditions.
300 $a 82 p.
500 $a Source: Masters Abstracts International, Volume: 49-02, page: 1070.
500 $a Adviser: Joshua M. McGrath.
502 $a Thesis (M.S.)--University of Maryland, College Park, 2010.
520 $a Agricultural drainage ditches can provide a direct connection between fields and surface waters, and some have been shown to deliver high loads of phosphorus (P) to sensitive water bodies. A potential way to reduce nutrient loads in drainage ditches is to install filter structures containing P sorbing materials (PSMs) including gypsum to remove P from ditch flow. One projected advantage would be the potential application of spent PSMs to agricultural fields to provide nutrients for crop production after the filter has lost its effectiveness. The study evaluated the feasibility of this strategy. Gypsum was saturated at two levels on mass basis of P, and applied to two soil types, a silt loam and a sandy loam and applied at both a high and low rate. The treated soils were incubated at 25°C, and samples were collected at 0, 1, 7, 28, 63, 91, 119, and 183 days after saturation.
590 $a School code: 0117.
650 4 $a Agriculture, Soil Science. $3 1017824
650 4 $a Environmental Sciences. $3 676987
690 $a 0481
690 $a 0768
710 2 $a University of Maryland, College Park. $b Natural Resource Sciences. $3 1030344
773 0 $t Masters Abstracts International $g 49-02.
790 1 0 $a McGrath, Joshua M., $e advisor
790 1 0 $a Penn, Chad J. $e committee member
790 1 0 $a Bryant, Ray B. $e committee member
790 1 0 $a Hill, Robert L. $e committee member
790 $a 0117
791 $a M.S.
792 $a 2010
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1482450