Leaving wheat residue on soil boosts soybean yields significantly.
Double-crop soybeans can be profitable, but planting them after wheat can cause lower yields and stress. Researchers studied different ways to manage wheat residue to improve soybean growth. They tested tilling, burning, mowing, or leaving the residue on the soil surface. The study found that managing residue had a big impact on soybean yield. In one location, planting into wheat residue led to lower yields compared to burning or mowing the residue. In another location, leaving residue on the soil surface resulted in higher yields. Overall, leaving residue on the soil surface consistently gave good yields, but not managing the residue could lower yields. Mowing wheat residue before planting can be a good alternative to traditional planting methods.