摘要
施氮肥可明显增加牧草产量,略增加蛋白产量,随着施氮水平的提高,两者都呈现先上升后下降的趋势。施碳铵优于施尿素,合理施肥应为每次刈割后施碳铵821.4kg/hm2,在此种施肥处理下,鲜草、干草、蛋白产量分别为110328.6、14366.0、2110.7kg/hm2,产值可达14342.7元/hm2。
The results showed that N fertilizer could increase the yield of napiergrass, and slightly improve the protein content of napiergrass. Along with the application level of N increased, the yield and protein content of napiergrass manifested the trend of rising firstly and decline finally, Applying ammonium carbonate is better than carbamide. The reasonable application method is applying 0. 821t/hm^2 ammonium carbonate after cutting every time. The yield of fresh grass, dry grass, protein content of dry grass were 110.329, 14.366 and 2. 111t/ hm^2 respectively. And the production value of hybrid naoiergrass ＂Guimu 1＂ is 14342.7 yuan（RMB）/hm^2.
出处
《江西农业学报》
CAS
2006年第2期84-86,共3页
Acta Agriculturae Jiangxi
关键词
氮肥
桂牧一号杂交象草
产草量
蛋白质
经济效益
N fertilizer
Hybrid napiergrass ＂Guimu 1＂
Yield of grass
Economic benefit
