부산대학교 도서관

Discusses the effects of manure management on grass production, nutritive content and soil nitrogen for a grass silage-based dairy farm. Recent focus on legislation in the U.S. on improving water quality by establishing water practices that limit the quantities of nutrients entering the water supply; Report that timely application and quantification of the amount of manure applied throughout the grass-growing season can reduce the loss of nutrients in ground or surface water while improving the quality and quantity of grass harvested; Suggestion that the new grass seedings were at higher risk of elevated levels of nitrate N in forage; Association of increased forage nitrate N at harvest with malfermented silage an increased level of ammonia N.