Publication Date
1985
Location
Kyoto Japan
Description
From 1979 to 1985, a series of experiments was carried out. In these experiments, Italian rye grass containing large amounts of nitrate was ensiled in laboratory silos with CaCO3, glucose and urea immediately after harvesting, and at three moisture levels adjusted by pre-wilting. In each experiment, the grasses were chopped to about 2 cm length and then packed in 1.5 liter glass bottles. The silos were kept at 28°C in the incubator and opened 50-80 days after ensiling. The nitrate content and crude protein content of original grass were-high and WSC content of that was low. In thirty grass silages except wilted grass silages, pH value was significantly correlated to lactic acid content (r= -0.802), butyric acid content (r=0.768) and Flieg's mark (r= -0. 791). The rate of nitrate disapperance was significantly correlated to pH value (r=0.840), lactic acid content (r=-0.775), butyric acid content (r=0.630) and Flieg's mark (r= -0.849). The nitrate disappeared to a large extent in rather the poor quality silage and in good quality silage the disappearance of nitrate was depressed. In the wilted silages, the quality of silage and the rate of nitrate disappearance were compared at three moisture levels. The quality of medium moisture silage was highest among three treatments. These differences were statistically significant (P< 0.01). The nitrate disapperance of medium moisture silage and high moisture silage were significantly (P< 0.01) higher than that of low moisture silage.
Citation
Masuko, T; Otani, T; and Awaya, K, "Analysis of the Factors Affecting on Disappearance of Nitrate in Grass During Ensilage" (1985). IGC Proceedings (1985-2023). 23.
(URL: https://uknowledge.uky.edu/igc/1985/ses9/23)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Analysis of the Factors Affecting on Disappearance of Nitrate in Grass During Ensilage
Kyoto Japan
From 1979 to 1985, a series of experiments was carried out. In these experiments, Italian rye grass containing large amounts of nitrate was ensiled in laboratory silos with CaCO3, glucose and urea immediately after harvesting, and at three moisture levels adjusted by pre-wilting. In each experiment, the grasses were chopped to about 2 cm length and then packed in 1.5 liter glass bottles. The silos were kept at 28°C in the incubator and opened 50-80 days after ensiling. The nitrate content and crude protein content of original grass were-high and WSC content of that was low. In thirty grass silages except wilted grass silages, pH value was significantly correlated to lactic acid content (r= -0.802), butyric acid content (r=0.768) and Flieg's mark (r= -0. 791). The rate of nitrate disapperance was significantly correlated to pH value (r=0.840), lactic acid content (r=-0.775), butyric acid content (r=0.630) and Flieg's mark (r= -0.849). The nitrate disappeared to a large extent in rather the poor quality silage and in good quality silage the disappearance of nitrate was depressed. In the wilted silages, the quality of silage and the rate of nitrate disappearance were compared at three moisture levels. The quality of medium moisture silage was highest among three treatments. These differences were statistically significant (P< 0.01). The nitrate disapperance of medium moisture silage and high moisture silage were significantly (P< 0.01) higher than that of low moisture silage.
