High nitrogen (N) application rates are used by maize growers as an 'insurance', but may
have an adverse effect on the environment. In this paper, the potential for nitrogen savings …

Core Ideas Nitrogen recommendations for individual corn fields are less accurate than
desired. Nitrogen recommendations need improvement for economic and environmental …

Over the past century, agricultural landscapes worldwide have increasingly been managed
for the primary purpose of producing food, while other diverse ecosystem services …

Tomato is one of the popular vegetable consumed by most people and enriched in nutrients
and taste. The amount and type of nutrients supplied to tomato can influence not only its …

Agricultural production systems in North America have become increasingly specialized.
The lack of diversification has had negative economic, biological, and environmental …

Over the past two decades, ecologists have gained a considerable amount of insight
concerning the effects of biological diversity on how ecosystems function. Greater …

We conducted a 9‐ha field experiment near Boone, IA, to test the hypothesis that yield, weed
suppression, and profit characteristics of low‐external‐input (LEI) cropping systems can …

Agriculture in the US Corn Belt is under increasing pressure to produce greater quantities of
food, feed and fuel, while better protecting environmental quality. Key environmental …

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 …

High levels of residual NO3–N are present in the soils of the Arkansas River Valley in
Colorado where alfalfa (Medicago sativa L.), grains, fruits, and vegetable crops are …