Charles Francis - Professor of Agronomy

Chuck Francis KCR 101
Lincoln NE 68583-0817
402-472-1581
cfrancis2@unl.edu

Faculty Bio

red clover sown in wheat field

Undersowing Red Clover Into Winter Wheat as an N Source for Corn

March 11, 2020
Red clover can be an excellent green manure that fixes nitrogen, suppresses weeds, and increases corn yields. As a slow-growing cool-season legume, it is suitable to undersowing into winter small grains in early spring.

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Comparison of aboveground biomass amounts and total N when using hairy vetch or cereal rye as cover crops.

Cover Crops Benefit Nebraska Agroecosystems In Many Ways

January 9, 2019

Across Nebraska, the use of cover crops is increasing. Most commonly, winter cover crops are planted during the fallow period between corn or soybean harvest and the next crop. However, other windows for cover cropping exist in Nebraska.

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Residues from cover crop mixtures terminated via sweep plow undercutter (left) or disk (right) in May 2010 study near Mead.

Cover Crop Mixtures: Effects of Diversity and Termination Method on Weeds, Soil, and Crop Yield

November 30, 2016
Overview of two experiments conducted in eastern Nebraska to quantify the productivity and agronomic effects of diverse cover crop mixtures and to determine how several termination methods might alter those effects.

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Field trials comparing early and late planted rye cover crop
Field trials comparing early and late planted rye cover crop

Implementation of Cover Crops in Corn and Soybean Systems in Nebraska

November 29, 2016
A short review of cover crop research conducted at four University of Nebraska research fields (two irrigated, two dryland) to study the feasibility and impact of winter cover cropping on soil quality, soil water, and crop yields in corn-soybean systems. Objectives were to quantify cover crop emergence, fall and spring biomass production, soil water changes, soil chemical and physical property changes, and crop yields.

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