CAJ | 학술논문

为了解巨菌草（Pennisetum sinese ）、皇竹草（Pennisetum hydridum ）、桂牧一号（hybrid Napi-erg rass“Gu imu-1”）牧草品种在不同海拔高度下的生长表现，为牧草品种的引进及推广种植提供科学依据，在不同海拔高度下对3个牧草品种的萌发、生长速度、分蘖力及产草量等进行考察。结果表明：随海拔高度的升高，各牧草品种的萌发时间推迟，生长速度变缓，分蘖力和年产草量降低。刈割次数低海拔6次，其中高产茬为第2、3、4茬；中、高海拔刈割次数分别为5次和4次，高产茬均为第2、3茬。3个牧草品种中，巨菌草产草量最高，皇竹草其次，两品种在低海拔年产草量分别达25．85 t／667m2和23．98 t／667m2。
위료해거균초（Pennisetum sinese ）、황죽초（Pennisetum hydridum ）、계목일호（hybrid Napi-erg rass“Gu imu-1”）목초품충재불동해발고도하적생장표현，위목초품충적인진급추엄충식제공과학의거，재불동해발고도하대3개목초품충적맹발、생장속도、분얼력급산초량등진행고찰。결과표명：수해발고도적승고，각목초품충적맹발시간추지，생장속도변완，분얼력화년산초량강저。예할차수저해발6차，기중고산치위제2、3、4치；중、고해발예할차수분별위5차화4차，고산치균위제2、3치。3개목초품충중，거균초산초량최고，황죽초기차，량품충재저해발년산초량분별체25．85 t／667m2화23．98 t／667m2。
To understand the growth performance of Pennisetum sinese ,Pennisetum hydridum and hybrid Napiergrass “Guimu-1 ”at different altitudes,and provide a scientific basis for introducing and generalization of pasture species,the germination,growth speed,tilling and grass yield of three pasture species in different altitudes were studied.Results: with the altitude raising, the germination time delayed,the growth speed slowed down,tillering weakened and annual grass yield decreased.The high yield cutting times were 2,3 and 4 when the cutting frequency was 6 in low altitude;and the high yield cutting times were 2 and 3 when the cutting frequency was 5 or 4 in middle and high altitudes.The grass yield of P .sinese was the highest,25.86 t/667m2 in low altitude,P.hydridum took the second place,23. 98 t/667m2 in low altitudes.