西藏5种多年生野生禾本科牧草生产性能比较试验
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摘要
本试验通过对当雄宁中早熟禾、工布江达丝颖针茅、那曲披碱草、定吉老芒麦、安多梭罗草5个野生禾本科牧草的出苗率、越冬率、农艺性状及其鲜草产量的研究,筛选出适宜高海拔生长的野生牧草,结果表明,5种野生禾本科牧草都能生长在高海拔4500 m以上,播种当年和第2年披碱草和老芒麦的出苗率、生长速度、产量显著高于其它3种牧草,但播种后第3年开始早熟禾、丝颖针茅、梭罗草产草产量高而稳定,披碱草和老芒麦的产量逐年下降。5种野生禾本科牧草在高海拔产量为:早熟禾>丝颖针茅>梭罗草>披碱草>老芒麦。
This experiment aims to screen out the suitable wild forages for growing at the high altitude by studying the emergence rate,winter survival rate,agronomic character and fresh yield of five wild Gramineae forages as follows: Dangxiong Ningzhong Bluegrass,Gongbu Jiangda Stipa capillacea Keng,Naqu Lyme grass,Dingji Elymus sibiricus L.,Anduo Kengvilia thoroldiana. The results show that the five kinds of wild forages can grow in the high altitude above 4500 meters. For the year of sowing and the second year,the emergence rate,growth rate and yield of Lyme grass and Elymus sibiricus L. were significantly higher than the other three. However,from the third year after sowing,the yield of Bluegrass,Stipa capillacea Keng,Kengvilia thoroldiana were high and stable,while the yield of Lyme grass and Elymus sibiricus L. decreased year by year. The comparison result of production performance of the five wild Gramineae forage in Tibet is as follows: Bluegrass > Stipa capillacea Keng > Kengvilia thoroldiana > Lyme grass > Elymus sibiricus L.
This experiment aims to screen out the suitable wild forages for growing at the high altitude by studying the emergence rate,winter survival rate,agronomic character and fresh yield of five wild Gramineae forages as follows: Dangxiong Ningzhong Bluegrass,Gongbu Jiangda Stipa capillacea Keng,Naqu Lyme grass,Dingji Elymus sibiricus L.,Anduo Kengvilia thoroldiana. The results show that the five kinds of wild forages can grow in the high altitude above 4500 meters. For the year of sowing and the second year,the emergence rate,growth rate and yield of Lyme grass and Elymus sibiricus L. were significantly higher than the other three. However,from the third year after sowing,the yield of Bluegrass,Stipa capillacea Keng,Kengvilia thoroldiana were high and stable,while the yield of Lyme grass and Elymus sibiricus L. decreased year by year. The comparison result of production performance of the five wild Gramineae forage in Tibet is as follows: Bluegrass > Stipa capillacea Keng > Kengvilia thoroldiana > Lyme grass > Elymus sibiricus L.
引文
[1]王柳英,周青平,颜红波,等.多年生禾本科牧草栽培比较试验[J].草业科学,2005,22(4):18-21.
[2]丁生祥,郭连云,公保才让,等.高寒牧区旱作条件下几种多年生禾本科牧草栽培比较试验[J].草原与饲料,2007,27(5):41-43.
[3]翟桂玉.加入WTO后,我国牧草种植与草业发展的趋势[J].养殖技术顾问,2002(6):45-46.
[4]莫本田,赵明坤,唐成斌,等.贵州主要野生禾本科牧草品比试验[J].四川草原,1996(3):12-16.
[5]李淑娟等.高寒草原生态草种梭罗草研究现状[J].草业科学,2009(2):64-68.
[6]陈小凤.三种禾本科牧草的比较试验[D].南宁:广西大学,2007
[7]贾慎修.草地学[M]. 2版.北京:农业出版社,1995.
[2]丁生祥,郭连云,公保才让,等.高寒牧区旱作条件下几种多年生禾本科牧草栽培比较试验[J].草原与饲料,2007,27(5):41-43.
[3]翟桂玉.加入WTO后,我国牧草种植与草业发展的趋势[J].养殖技术顾问,2002(6):45-46.
[4]莫本田,赵明坤,唐成斌,等.贵州主要野生禾本科牧草品比试验[J].四川草原,1996(3):12-16.
[5]李淑娟等.高寒草原生态草种梭罗草研究现状[J].草业科学,2009(2):64-68.
[6]陈小凤.三种禾本科牧草的比较试验[D].南宁:广西大学,2007
[7]贾慎修.草地学[M]. 2版.北京:农业出版社,1995.