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应用生态学报 ›› 2005, Vol. 16 ›› Issue (6): 1033-1037.

• 研究论文 • 上一篇    下一篇

土施L-蛋氨酸、L-苯基丙氨酸、L-色氨酸对玉米生长和养分吸收的影响

陈明昌, 程滨, 张强, 丁玉川, 杨治平, 刘平   

  1. 山西省农业科学院土壤肥料研究所, 山西省土壤环境与养分资源重点实验室, 太原 030031
  • 收稿日期:2004-03-10 修回日期:2004-07-05 出版日期:2005-06-15 发布日期:2005-06-15
  • 通讯作者: 陈明昌,男,1959年生,研究员.主要从事生态环境、土壤科学、植物营养等方面研究,发表论文40余篇.E-mail:mccheng@public.ty.sx.cn
  • 基金资助:
    国家引进国外技术项目(948-2002-Z32)和山西省科学技术攻关资助项目(971012).

Effects of applying L-methionine,L-phenylalanine and L-tryptophan on Zea mays growth and its nutrient uptake

CHEN Mingchang, CHENG Bin, ZHANG Qiang, DING Yuchuan, YANG Zhiping, LIU Ping   

  1. Key Laboratory of Soil Environment and Nutrient Resources, Institute of Soil and Fertilizer, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, China
  • Received:2004-03-10 Revised:2004-07-05 Online:2005-06-15 Published:2005-06-15

摘要: 通过盆栽试验,研究了3种植物生长调节剂前体物质对玉米生长发育和养分吸收的影响,并确定了其适宜用量.结果表明,土施L蛋氨酸(L-MET)、L-苯基丙氨酸(L-PHE)和L-色氨酸(L-TRP)能不同程度地增加玉米株高、地上部和地下部干重,提高玉米根系活力、体内硝酸还原酶和过氧化氢酶的活性,促进玉米对氮、磷、钾、锌养分的吸收.在所有供试浓度中,以土施L-MET0.0185~0.185mg·kg-1、L-PHE0.2mg·kg-1和L-TRP0.03~0.3mg·kg-1效果最佳,而且L-PHE和L-TRP对玉米生长的促进作用和提高养分的吸收能力均优于L-MET.

关键词: 植物生长调节剂, 前体, 玉米, 生长, 养分吸收

Abstract: A pot experiment was conducted to evaluate the effects of applying L-methionine(L-MET), L-phenylalanine (L-PHE) and L-tryptophan (L-TRP) on the growth of Zea mays and its nutrient uptake, and to determine the optimal application rate of them. The results showed that L-MET, L-PHE and L-TRP could improve the shoot height, shoot and root dry weights, root activity, nitrate reductase and hydrogen peroxidase activities, and N, P, K and Zn uptake of corn. The optimal application rate of L-MET, L- PHE and L-TRP was 0.0185~0.185 mg·kg-1 soil, 0.2 mg·kg-1 soil, and 0.03~0.3 mg·kg-1 soil, respectively, and L-PHE and L-TRP were superior to L-MET.

Key words: Plant growth regulator, Precursor, Zea mays, Growth, Nutrient uptake

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