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The top documents tagged [organic c]
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organic c
The effects of minimum and conventional tillage systems on maize grain yield and soil fertility in western Ethiopia. Tolessa Debele Dilalessa
1.666 views
Science and management of soil biology
2.906 views
Presented at the Joint IEA Bioenergy ExCo/Nordic Energy Workshop Biofuels for Transport – Part of A Sustainable Future? Oslo, May 14, 2008 Uwe R. Fritsche.
217 views
The Danish Soil Classification From 1939 to 1975 the farmland area dropped from 32.000 sqkm to 28.000 sqkm It raised a need for soil maps for planning.
218 views
Lewis H. Ziska, USDA-ARS Thanks to: Linda Ford, MD American Lung Association, Omaha, NE James Straka, PhD, Macalester College, St. Paul, MN David Frenz,
214 views
Nutrient Cycling 1: The nitrogen cycle I. Introduction A.The global N cycle 1.Global pools and fluxes 2.Changes 3.Consequences B.The ecosystem N cycle.
217 views
Power Of Wheatgrass
694 views
Manfaat Zeolit Dan Rock Phosphat-mpit
122 views
Dst gap 23-24 nov,2011
149 views
Flex Maint Plan C 40 A
714 views
Centrate Sensor Analysis in Wastewater
570 views
Nitrogen and Phosphorus Cycles Martha E. Rosemeyer IES January 29, 2003.
218 views
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