作者
Mitchell C Hunter, Meagan E Schipanski, Macdonald H Burgess, James C LaChance, Brosi A Bradley, Mary E Barbercheck, Jason P Kaye, David A Mortensen
发表日期
2019
期刊
Agricultural & Environmental Letters
卷号
4
期号
1
页码范围
180051
出版商
The American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.
简介
Core Ideas
- Few studies report the effects of cover crop mixtures on crop yields in rotation.
- Cover crop C/N ratio was negatively correlated with maize yield.
- Multispecies mixtures did not affect maize, soybean, or wheat yields.
- Cover crops with high biomass and C/N ratios provide unique ecosystem services.
- Both mixtures and diverse rotations may enhance cover crop ecosystem services.
Despite the popularity of multispecies cover crop mixtures, there is little published evidence of their effects on subsequent crop yields, especially for multiple crops grown in rotation. We examined the effects of fall‐planted cover crops—both mixtures and their component monocultures—on subsequent crop yields in an organically managed maize (Zea mays L.)–soybean [Glycine max (L.) Merr.]–winter wheat (Triticum aestivum L.) rotation in central Pennsylvania. We hypothesized that cover crop biomass C/N ratio would be …
学术搜索中的文章
MC Hunter, ME Schipanski, MH Burgess, JC LaChance… - Agricultural & Environmental Letters, 2019