This paper reviews current knowledge on the range and extent of various tillage systems
used in North America with special reference to the effects on soil properties, the erosion …

Recognition of the importance of soil organic matter (SOM) in soil health and quality is a
major part of fostering a holistic, preventive approach to agricultural management. Students …

The development of cropping systems that use N efficiently requires methods that evaluate
system differences in N use. A procedure, based conceptually on soil and plant processes …

This chapter discusses the role of crop rotations in agricultural production and the ways in
which crops grown in rotation impact water and nitrogen‐use efficiencies (NUEs) in …

Decomposition of forage legume‐grass (FLG) sods after turnover will supply N to the next
corn (Zea mays L.) crop. For optimum economic grain production typically a starter N …

Frost‐seeding a legume into an established stand of winter wheat (Triticum aestivum L.) or
interseeding a legume into a small grain at planting has potential to provide the benefits of a …

Herbicide application may provide an alternative to intensive tillage for the termination of
alfalfa stands, but might alter N release and N availability to subsequent crops. Our objective …

Alfalfa (Medicago sativa L.) contributes substantial N to grain crops that follow, but there is
uncertainty concerning the amounts. The objective of this study was to determine optimal …

Current fertilizer N guidelines in the midwestern and northeastern United States may not
adequately account for variable N supply to corn (Zea mays L.) grown after alfalfa (Medicago …

Terminated alfalfa (Medicago sativa L.) often provides N to at least 2 yr of subsequent corn
(Zea mays L.) crops, but the variability in fertilizer N guidelines for second‐year corn in the …