A mix of oats, forage peas and hairy vetch in a no-till corn silage field after about six weeks of growth. The cover crop was drilled at 138 lbs. seed/acre on Sept 13 in central Minnesota.
A field view of the mix of oats, forage peas and hairy vetch drilled in a no-till corn silage field after about six weeks of growth.
Cereal rye was aerial seeded into standing no-till corn on Sept. 11 at a rate of 91 lbs. seeds/acre. The photo shows the crop after about 7 weeks of growth in central Minnesota.
A green carpet of cereal rye covers part of this harvested corn silage field in central Minnesota. For comparison, an adjoining strip of the field was left bare and vulnerable to wind and water erosion. The cover crop was seeded Sept. 13, at 75 lbs. of seed/acre. The field received an inch of rain the next day. The photo was taken 47 days later.
Dan Ley, Richmond, Minn., checks a cover crop of cereal rye in late October. The crop was seeded about six weeks earlier in a harvested corn silage field.
Cover crops significantly reduced soil nitrate-N in the fall, lowering leaching risk. Soil residual nitrate-N increased between Nov. and the following May. “This reflects primarily the accumulation of N deposited by cattle or decomposition of cover crop biomass,” says study leader Dean Krull, University of Nebraska. Similar results were observed in 2010 and 2011.
T = turnip; R = radish; RS = rapeseed; G = grazing varieties of turnip and radish
Source: Dean Krull, University of Nebraska
No-till farmer Dan Ley, Richmond, Minn., has planted 100 - 200 acres of cover crops for the past four years. Ley plants cereal rye, as well as a mix of oats, forage peas and hairy vetch in the fall.
Corn and Soybean Digest
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