|
Brookston, IN | It has a lot to due with disease and nematode pressure for soybeans, A few nematodes will survive even on resistant varities, if you follow with the same varity then all of the survivors from the prvious year are now imune to its resistance. In general there are enough good soybean varities and a short enough life span to most that I try to never run the same soybean varity in a field twice.
Disease pressure is similar in both corn and beans, if it was susseptible to a disease the first year ther will be even more of the disease to carry over for the second year. If you have a low disease pressure year may be able to get by with 2 years. We tied it this year on a particular corn hybrid and it didn't work real well. It was not a disaster but not worth the risk. | |
|
Yeild drop from planting same variety or hybrid 2nd time ?
