高寒地区锌肥对垂穗披碱草影响研究
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摘要
为探寻锌肥在高寒草地对垂穗披碱草产量及品质的影响。试验试剂为ZnSO_4·7H_2O,Zn含量21%,试验牧草为垂穗披碱草(Elymus nutans Griseb),喷施浓度分别为500、600、700、800、900、1000和0 mg/kg(CK) 7个梯度锌溶液,通过对比物候期、生长速度、饲草产量、营养成分、种子产量和越冬率来筛选出适宜喷施锌溶液浓度。结果表明,在喷施800 mg/kg锌溶液浓度时,能较好的促进高寒地区垂穗披碱草的产量及品质。
In order to explore the effect of Zn fertilizer on the yield and quality of Elymus nutans Griseb in alpine meadow,the effects of different Zn fertilizer concentration(( 500,600,700,800,900,1000 and 0 mg/kg) on Elymus nutans Griseb in alpinee meadow were studied. The results showed that 800 mg/kg Zn fertilizer can better promote the yield and quality of Elymus nutans Griseb in the alpine region.
In order to explore the effect of Zn fertilizer on the yield and quality of Elymus nutans Griseb in alpine meadow,the effects of different Zn fertilizer concentration(( 500,600,700,800,900,1000 and 0 mg/kg) on Elymus nutans Griseb in alpinee meadow were studied. The results showed that 800 mg/kg Zn fertilizer can better promote the yield and quality of Elymus nutans Griseb in the alpine region.
引文
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[2]张耀生,赵新全,黄德清.青藏高寒牧区多年生人工草地持续利用的研究[J].草业学报,2003,12(3):22-27.
[3]董世魁,胡自治,龙瑞军,等.高寒地区多年生禾草混播草地的群落学特征研究[J].生态学杂志,2003,22(5):20-25.
[4]胡霭堂.植物营养学(下册)[M].北京:中国农业大学出版社,2003:13-135.
[5]Brouwer D J,Osborn T C.A molecular marker linkage map oftetraploid alfalfa(Medicago sativa L.)[J].Theor Appl Genet,1999(99):1194-1200.
[6]3 Brouwer D J,Osborn T C.A molecular marker linkage map oftetraploid alfalfa(Medicago sativa L.)[J].Theor Appl Genet,1999(99):1194-1200.