Forage conservation is a neglected nitrous oxide source.

Agricultural activities are the major anthropogenic source of nitrous oxide ( ), an important greenhouse gas and ozone-depleting substance. However, the role of forage conservation as a potential source of has rarely been studied. We investigated production from the simulated silage of the three major crops-maize, alfalfa, and sorghum-used for silage in the United States, which comprises over 90% of the total silage production.

Yield gap analysis of rainfed alfalfa in the United States.

The United States (US) is the largest alfalfa ( L.) producer in the world. More than 44% of the US alfalfa is produced under rainfed conditions, although it requires a relatively high amount of water compared to major field crops.

Effect of a fall cut on dry matter yield, nutritive value, and stand persistence of alfalfa.

Information is lacking about the effect of date of a fall cut of alfalfa ( L.) on dry matter yield (DMY), forage nutritive value, and stands persistence. The objective of this study was to determine the effect of timing of a fall cut on DMY, forage nutritive value and stand persistence of three alfalfa varieties: low-lignin Hi-Gest 360, Roundup Ready Tonica, and conventional Gunner in Northeastern Kansas in the United States.

Effects of alfalfa and alfalfa-grass mixtures with nitrogen fertilization on dry matter yield and forage nutritive value.

Alfalfa ( L.) is an important forage legume grown in Kansas, USA and its productivity with cool-season grasses however is unknown. The objective of this study was to determine the dry matter yield (DMY) and forage nutritive value of alfalfa-grass mixtures compared to those of alfalfa and grasses grown in monoculture with and without nitrogen fertilization.