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Spatially explicit assessment of nutrient demands for promoting efficient regional fertilizer-use management in Vietnam

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Title Spatially explicit assessment of nutrient demands for promoting efficient regional fertilizer-use management in Vietnam
 
Creator Tran, Minh Tien
 
Contributor Minh TRAN, Thu Thi
Nguyen, Thu Bich
Le, Quang Bao
 
Subject web-based gis
nutrient supply and demand
potential crop yield
 
Description To transition to efficient fertilizer use for promoting food production, a wide range of stakeholders need to know nutrient demands for meeting crop yield potentials over an agricultural region. Knowledge about spatial patterns of these demands, however is often deficient in developing countries. This study (1) assesses the nutrient demands of potential crop productions in two intensive agricultural regions in Vietnam (Dong Nai and Bac Ninh provinces), and (2) provides public access to the output. We calculated the nitrogen (N), phosphorus (P) and potassium (K) demands for reaching crop yield potentials over the farmlands in the two provinces, taking soil nutrient balances into account. The balance calculations considered the effects of natural nutrient supplies (e.g., from soils), and different natural nutrient losses (e.g., by volatilization, erosion, leaching, runoff and crops’ uptake with different fertilizer use efficiencies). The results were spatially explicit, presented at a map scale of 1:100,000, and managed by a Web-based Geographic Information System (GIS). The web-based GIS allows lay users to query the results at different levels of aggregation (i.e., farm, commune, district and province) in a responsive and iterative manner.
 
Date 2015-10-06
2016-02-10T10:39:38Z
2016-02-10T10:39:38Z
 
Type Journal Article
 
Identifier http://www.airies.or.jp/journal_GlobalEnvironmentalResearch_Milsdc5L.html
https://www.researchgate.net/profile/Quang_Le8/publication/233808356_Spatially_explicit_assessment_of_nutrient_demands_for_promoting_efficient_regional_fertilizer-use_management_in_Vietnam/links/09e4150bb671b2eed8000000.pdf?origin=publication_list
https://mel.cgiar.org/reporting/download/hash/9Q57Q3JJ
Minh Tien Tran, Thu Thi Minh TRAN, Thu Bich Nguyen, Quang Bao Le. (6/10/2015). Spatially explicit assessment of nutrient demands for promoting efficient regional fertilizer-use management in Vietnam. Global Environmental Research -English Edition-, 19 (1), pp. 43-48.
https://hdl.handle.net/20.500.11766/4301
Open access
 
Language en
 
Rights CC-BY-NC-4.0
 
Format PDF
 
Publisher The Association of International Research Initiatives for Environmental Studies (AIRIES)
 
Source Global Environmental Research -English Edition-;19,(2015) Pagination 43,48