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Moving Matters: The Effect of Location on Crop Production

Publication Date: March, 2015

Our new spatial output indexes show that 16 to 21 percent of the increase in U.S. corn output over the 128 years beginning in 1879 was attributable to spatial movement in production.

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Measuring the Effectiveness of Crop Improvement Research

Measuring the Effectiveness of Crop Improvement Research in Sub-Saharan Africa from the Perspectives of Varietal Output, Adoption, and Change: 20 Crops, 30 Countries, and 1150 Cultivars in Farmers’ Fields

Publication Date: July, 2014

A synthesis report on the results of a CGIAR project: Diffusion and Impact of Improved Varieties in Africa (DIIVA) Project – the first major study to focus on the diffusion of improved crop varieties

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Developing Consistent Marginal Effect Estimates in a Simultaneous Equation Model with Limited Dependent Variables

Publication Date: March, 2013

We demonstrate that Theil-type variance corrections are required to obtain consistent marginal effect estimates in Nelson-Olsen's two-stage limited dependent variable (2SLDV) model.

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Quantifying Farmer Adoption Intensity for Weed Resistance Management Practices and Its Determinants

Publication Date: August, 2012

Given the importance of adopting weed resistance management BMPs, it is important to develop methods to compare BMP adoption among farms and to identify factors that affect BMP adoption.

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Adoption of Best Management Practices to Control Weed Resistance by Corn, Cotton, and Soybean Growers

Publication Date: January, 2009

This study examined adoption of 10 best management practices (BMPs) to control weed resistance to herbicides using data from a survey of more than 1,000 US corn, cotton, and soybean growers.

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Adoption of Conservation-Tillage Practices and Herbicide-Resistant Seed in Cotton Production

Publication Date: January, 2009

Agricultural Resource Management Survey data for 2003 were used to estimate logit models for adoption of conservation-tillage practices and herbicide-resistant/stacked-gene cottonseed in the United States.

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Managing the Herbicide Resource: An Evaluation of Extension on Management of Herbicide-Resistant Weeds

Publication Date: January, 2009

The threat of herbicide-resistant weeds to crop production makes sustainable weed and herbicide management an important issue for agricultural extension agencies throughout the world.

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Simultaneous Diffusion of Herbicide Resistant Cotton and Conservation Tillage

Publication Date: January, 2009

This study used state-level data from 1997-2002 to econometrically estimate factors explaining the diffusion of two technologies by US cotton producers: herbicide-resistant (HR) cotton seed varieties and conservation tillage.

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Weed Management Costs, Weed Best Management Practices, and the Roundup Ready Weed Management Program

Publication Date: January, 2009

We use survey results to explore how adoption of BMPs affects weed-management costs in corn, cotton, and soybeans, controlling for farmer and regional characteristics.

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Research Lags Revisited: Concepts and Evidence from U.S. Agriculture

Publication Date: December, 2008

Many researchers and commentators underestimate the length and importance of the time lags between initial research investment and ultimate impacts on the development and adoption of technological innovations.

CSV