economi(about 15%) ) was rarely ­ mechacally important and the ­ nisms leading to reduction were not clear. For example, l , there numwere few differences f in the ­ berr off leafhopperr predators or parasitoids on i the vines in cover cropped versus no coverr sigplots. However, r, there were ­ differnificant between-treatment ­ ences in vine growth. Plots with seasonwide maintenance off a cove...

Little information exists on the potential for N fertilizer application to corn ( L.) to affect NO emissions during subsequent unfertilized crops in a rotation. To determine if N fertilizer application to corn affects NO emissions during subsequent crops in rotation, we measured NO emissions for 3 yr (2011-2013) in an Iowa, corn-soybean [ (L.) Merr.] rotation with three N fertilizer rates appli...

other crops, non-tillage methods to alleviate compaction CROP COVER ROOT CHANNELS MAY problems have not been extensively researched. DeepALLEVIATE SOIL COMPACTION rooted cover crops are one possible solution to compaction problems, especially in no-till farming systems (UnEFFECTS ON SOYBEAN CROP ger and Kaspar, 1994). The deep growing tap roots of the perennial alfalfa (Medicago sativa L.), can...

Cover crops are increasingly being adopted to provide multiple ecosystem services such as improving soil health, managing nutrients, and decreasing erosion. It is not uncommon for weeds emerge in become a part of cover crop plant community. Since the role cropping supplement service provisioning, we were interested assessing impacts on provisioning. To our knowledge, no research has examined ho...