不同肥料和施肥量对三江源区高寒草甸天然草地的影响  

Effect of different fertilizer and fertilizer quantity on Alpine meadow grassland in Sanjiangyuan region

作　　者：郭红玉[1,2] 德科加[2] 芦光新[1] 王伟[2] 张明[2] 

机构地区：[1]青海大学,西宁810016 [2]青海省畜牧兽医科学院,西宁810016

出　　处：《青海畜牧兽医杂志》2014年第6期8-10,共3页Chinese Qinghai Journal of Animal and Veterinary Sciences

基　　金：农业部公益性行业(农业)科研专项(201203007)资助

摘　　要：在玉树州称多县珍秦镇青海大学-清华大学三江源草地生态环境观测站进行不同肥料和施肥量的试验,结果表明,在A6(尿素:65g/m2)处理下植被平均高度显著高于其他处理(P<0.05);禾本科和莎草科生物量也在A6处理下显著增加(P<0.05),而杂类草则在A2(有机肥:320g/m2)处理下最高,显著高于对照(P<0.05);鲜干比禾本科和莎草科在A6处理下显著增加(P<0.05),A2处理下杂类草鲜干比最高,但各处理间均无显著性差异(P>0.05)。由此看来,A6处理对草地优良牧草生物量和牧草品质的增加有促进作用。The tests on different fertilizer and fertilizer quantity were conducted in Sanjiangyuan grassland ecological environment monitoring station, in Zhenqin , Chengduo county of Yushu prefecture.. The results showed that the average height of vegetation is significantly higher than other treatments （ P 〈 0.05 ） under the A6 （ urea, 65g/m^2 ） treatment. Gramineae and Cyperaceae biomass under the A6 treatment also increased significantly （ P 〈 0.05 ） , while the forb under A2 （ organic fertilizer, 320g/m^2） treatment was the highest, and significantly higher than control treatments （ P 〈 0.05 ）. The ratio of fresh grass and dry - grass of Gramineae and Cyperaceae significantly increased （ P 〈 0.05 ） under the A6 treatment, the ratio of fresh grass and dry - grass of forb under A2 treatment was the highest, but there was no significant difference between the treatments （ P 〉 0.05 ）. It indicated that the A6 treatment is benefit for pasture biomass and grass quality.

关 键 词：三江源区 高寒草甸 施肥 生物量 

分 类 号：S812.4[农业科学—草业科学]