Video: Effects of Winter Crops on Soybean

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How do winter crops affect your soybean production?

Sixth generation farmer and graduate student, MaKayla Gross, gives us an update on her research project that will provide soybean producers with new information on how common winter crops like rye, wheat and rapeseed, affect spring planted soybeans in North Carolina.

Watch the short video here:

Producing a winter crop before soybeans is a common practice in North Carolina. Traditionally, wheat has been the main winter crop grown before soybeans, however, other emerging winter crop scenarios are on the rise which include rapeseed and cover crops.

The objective of this experiment is to determine the effect of winter crops on soybean productivity in North Carolina and update grower recommendations on soybean maturity groups in this system. The experiment was conducted in two environments in 2019 including the Upper Coastal Plain Research Station (Rocky Mount, NC) and the Piedmont Research Station (Salisbury, NC) and is being repeated at three locations in 2020.

Treatments included:

  1. Wheat for grain
  2. Rapeseed for grain
  3. Cereal rye as cover crop
  4. Cereal rye/crimson clover as cover crop mix

All winter crop scenarios were compared to fallow. Soybean varieties included were: MG III (P38A98X); V (P55A49X), and VII (P72A21X).

Data measured includes cover crop/residue biomass; winter crop grain yields; soybean emergence; soil moisture; soil temperature; N availability, and soybean yield.

2019 and 2020 research results will be summarized and available to producers in a variety of formats and at the 2021 production meetings.

Authors: MaKayla R. Gross, Rachel A. Vann, Alex Woodley, and David Jordan