| 三江源区人工草地施肥效应研究 |
| |
| 引用本文： | 李青云,施建军,马玉寿,董全民.三江源区人工草地施肥效应研究[J].草业科学,2004,21(4):35-38. |
| |
| 作者姓名： | 李青云 施建军 马玉寿 董全民 |
| |
| 作者单位： | 青海省畜牧兽医科学院,青海,西宁,810003;青海省畜牧兽医科学院,青海,西宁,810003;青海省畜牧兽医科学院,青海,西宁,810003;青海省畜牧兽医科学院,青海,西宁,810003 |
| |
| 摘 要： | 在海拔近4 000 m的达日县对二龄老芒麦Elymus sibiricum人工草地进行不同施肥量和施肥方式的施肥试验,结果表明:牧草的高度随施肥量的增加而显著增高(P<0.01),分蘖期1次施入与分蘖期与拔节期分2次施入对牧草高度无显著影响(P>0.05);施肥量对老芒麦人工草地的产草量增产效果极显著 (P<0.01),分蘖期和拔节期分2次施肥的老芒麦产草量比分蘖期1次施肥提高12%(P<0.01).从经济效益考虑较适宜的施肥量是225 kg/hm2.
|
| 关 键 词： | 老芒麦 人工草地 施肥 三江源区 |
| 文章编号： | 1001-0629(2004)04-0035-04 |
Effects of fertilizer application on sown pasture in the fountainhead region of the Yangtze, Yellow and Meikong rivers |
| |
| LI Qing yun,SHI Jian jun,MA Yu shou,DONG Quan min.Effects of fertilizer application on sown pasture in the fountainhead region of the Yangtze, Yellow and Meikong rivers[J].Pratacultural Science,2004,21(4):35-38. |
| |
| Authors: | LI Qing yun SHI Jian jun MA Yu shou DONG Quan min |
| |
| Abstract: | The effects of fertilizer amount and application method were studied for 2 year old Siberian wildrye( Elymus sibiricus )sown pasture in Dari county, Qinghai province Herbage height significantly increased with increase of fertilizer amount ( P <0 01) Applying fertilizer twice, once during tillering and once during the jointing stage, or applying fertilizer only once during tillering did not significantly affect herbage height ( P >0 05), but applying twice increased herbage yield by 12% ( P <0 01) Fertilizer amount very significantly increased forage yield ( P <0 01) Considering economic benefit, a suitable fertilizer rate is 225 kg/hm 2 |
| |
| Keywords: | Siberian wildrye ( Elymus sibiricus ) sown pasture fertilizer application |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
