By Harold Watters, Ohio State University Extension agronomist
Planting date was the biggie. We had our annual Soybean School at the Conservation Tillage Conference recently. Three of our speakers said that planting date was the most important item that growers could change to improve yield. Plant in April if possible or early May if not.
Last year in this column I noted that Fred Below crop physiologist from the University of Illinois at Commodity Classic said the number one influence on soybean yields is the weather. I do have to agree with that — just look at 2018 and you will see how great this influence is.
Variety selection? From Fred’s list of last year, I think genetics is number two (although he did not put it at the same ranking). In looking over the soybean varieties entered in Ohio’s 2018 Soybean Performance trials (http://www.oardc.ohio-state.edu/soy2018/) — there are big swings. Averaged across two sites from 2018 at central Ohio trials for late maturity the highest yielder is 61.7 bushels per acre and the low is 44.8.… Continue reading