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Influence of Different Potassium Fertilizer on Some Enzyme Activities of Growing Flue-cured Tobacco
Author(s): 
Pages: 67-70
Year: Issue:  2
Journal: ACTA AGRICULTURAE BOREALI-SINICA

Keyword:  钾肥烤烟生物钾有机钾;
Abstract: 研究了不同种类钾肥和组合对烤烟生长过程中硝酸还原酶(NR)、超氧化物歧化酶(SOD)、蔗糖酶(INV)、根系ATP酶活性和根系活力的影响.结果表明,有机钾肥和生物钾肥都能够提高烟株的NR活性,促进烟株早期对氮素的吸收.提高SOD活性,增强根系活力,促进INV和ATP酶活性的提高.其中生物钾肥有利于促进烤烟生长前期根系活力的提高,有机钾肥能促进生长后期的根系活力的提高.以KN03为基础的钾肥处理比以K2SO4为基础的钾肥处理更能促进烟株的生长发育.
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