Varietal differences in nitrate nitrogen content in Italian ryegrass and effects of moisture content and additives on disappearance of nitrate nitrogen in wrapped bale silage
2000
Inoue, N. (Fukuoka-ken. Agricultural Research Center, Chikushino (Japan)) | Baba, T. | Ohta, T. | Shikita, S. | Fujiyoshi, H.
The nitrate nitrogen content of 13 cultivars of Italian ryegrass was compared. Moreover, with Italian ryegrass containing large amounts of nitrate nitrogen, the effects of moisture content and sodium bicarbonate (NaHCO3) addition on the disappearance of nitrate nitrogen were also investigated. (1) Nitrate nitrogen content ranged from 33 to 1237 ppm. The cultivar 'SAKURAWASE' showed the highest nitrate nitrogen content among the cultivars. The lowest level of nitrate nitrogen was observed in the cultivar 'AKIAOBA'. (2) Nitrate nitrogen content was significantly lower in late maturing cultivars than in early ones. and it was recognized that the fewer stems there were in the cultivars, the lower the nitrate nitrogen content (3) In wrapped bale silage with a 60-70% moisture level, nitrate nitrogen content considerably decreased, and the fermentation quality of wrapped bale silage with this moisture level was as favorable as that with a moisture level under 60%
اظهر المزيد [+] اقل [-]