Carbon Sequestration model, version 2.0

Corn-ethanol production is expanding rapidly with the adoption of improved technologies to increase energy efficiency and profitability in crop production, ethanol conversion, and coproduct use. Life cycle assessment can evaluate the impact of these changes on environmental performance metrics. To this end, we analyzed the life cycles of corn-ethanol systems accounting for the majority of U.S. capacity to estimate greenhouse gas (GHG) emissions and energy efficiencies...More

     This user guide for the WatchDog 2000 Series Weather Stations goes through setup and operation of the station as well as maintenance and setup and usage tips. This version of the user guide is in Spanish.

Nowadays European agriculture is evolving in a context where policy-making and environmental concerns play a key role. To better assess agro-environmental policies, the AROPAj agricultural supply model needs to take into account the technical characteristics of crop management for different farms. A method to build up specific relationships between yield and nitrogen fertilization that takes into account agronomic techniques is proposed in this paper. The nitrogen response...More

Unlike the Central and Eastern U.S. Corn-Belt where maize is grown almost entirely under rainfed conditions, maize in the Western Corn-Belt is produced under both irrigated (3.2 million ha) and rainfed maize (4.1 million ha) conditions. Simulation modeling, regression, and boundary-function analysis were used to assess constraints to maize productivity in the Western Corn-Belt. Aboveground biomass, grain yield, and water balance were simulated for fully irrigated and rainfed...More

This document provides scientificbackground on several aspects of the Global Maize project,  including treatments, measurements, analysis, and scope of the project.

This document was adapted from procedures used in Southest Asia for corn sampling in their ecological intensification maize program.  It should serve as a guide for sampling and harvest for other sites.

DRAFT document

This document discusses the nutrient use efficiency definitions and calculations and is a good reference for Global Maize cooeprators to help explain the terminology being used with the project.

User Guide to the WatchDog weather stations for the project. Includes setup and operation instruction along with maintenance and tips and tricks section.

GRACEnet (Greenhouse Gas Reduction through Agricultural Carbon Enhancement network): An assessment of soil carbon sequestration and greenhouse gas mitigation by agricultural management 

Technical Abstract: Agricultural activities account for about 20% of the total human-induced warming effect due to emission of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). Changes in management, including minimizing or eliminating tillage, adding organic...More

Weather file for location for Jan 1, 1997 through Dec 31, 2008. Ready to work with Hybrid Maize.

Retrieved from NASA weather data site 14 AUG 2009.

Can Thos, Vietnam

10.122669 | 105.581314

The integration of soil survey maps with Geographic Information Systems (GIS) allows for an almost infinite level of collaboration across disciplines that use information related to soil databases. The ability to link databases with geospatial delineations and to store unique information for individual delineations creates the opportunity for this information to serve many other areas of study.

These researchers from Iowa State Univ. created a Quaternary geologic...More

Global Maize Working Group Activities in China