 |
| Lead author of the study Dr. Gurbir Singh collecting hairy vetch cover crop biomass samples before termination of cover crops. Credit; Gurpreet Kaur |
AMERICAN SOCIETY OF AGRONOMY
Incorporating cover crops with tillage reportedly results in increased cover crop decomposition rates and increased mineralization of nutrients from cover crop biomass. Multiple studies have reported mixed results for corn-soybean grain yields when planted after cover crops.
In an article recently published in Agronomy Journal, researchers reported results of a four-year study on corn-soybean rotation. Treatments were completed under either conventional tillage or no-tillage, and with and without cover crop. Researchers included three rotations: cereal rye-soybean-hairy vetch-corn, cereal rye-soybean-oat+radish-corn, and no cover crop-soybean-no cover crop-corn.
The team found that rotation with hairy vetch as a preceding cover crop increased corn grain yield by 14.09 and 12.35% compared to rotations having no cover crop and oat+radish as preceding cover crops, respectively. Cereal rye cover crop biomass had 16-20 kg ha-1 greater N uptake compared to winter annual weeds in rotation without cover crops. Researchers reported that cereal rye preceding soybean reduced soybean yield by 0.3 to 0.6 Mg ha-1 compared to soybean following no cover crop.
Cover crops are touted for their soil and water quality related benefits. However, their adoption and success will depend on the selection of cover crop species available that do not reduce grain yields in following crops.
###
Adapted from Singh, G., Thilakarathne, A.D., Williard, K.W., Schoonover, J.E., Cook, R.L., Gage, K.L. and McElroy, R. (2020), Tillage and legume non?legume cover cropping effects on corn-soybean production. Agron. J. Accepted Author Manuscript.
Source; EurekAlert!
Posts
Hello,
Welcome to "Agrovista Profits"
“Agrovista Profits” is a nonprofitable portal. A peer- Friend for the agriculture news, Agriculture news Blogs, agriculture research and development activities, Agriculture Business, and agriculture allied services. Agrovista Profits is an open-access Portal for opinion formers, decision makers, policy makers and above all the farmers.
We are committed for providing the selected info 24X7 about the agriculture and allied sector and assure you that
“ Agrovista Profits “ will always remain clear, unbiased and factual accounts of development in, or affecting, world agriculture and food security. They will interpret the influence of related aspects (which will remain embedded by the aspects like; Agriculture technology, Agriculture Business, Agriculture news climate, forestry, fisheries and, Agri - economics, Agri - ecology) on these developments. An important objective is to assist decision-makers to ensure policies and methods are evidence-based and sustainable.
No comments:
Post a Comment