除草剂对与水稻根际相关的固氮作用（乙炔还原）的影响。

Effect of herbicides on nitrogen fixation (C2H2 reduction) associated with rice rhizosphere.

作者信息

Patnaik G K, Kanungo P K, Moorthy B T, Mahana P K, Adhya T K, Rao V R

机构信息

Division of Soil Science and Microbiology, Central Rice Research Institute, Cuttack, India.

出版信息

Chemosphere. 1995 Jan;30(2):339-43. doi: 10.1016/0045-6535(94)00401-f.

DOI:10.1016/0045-6535(94)00401-f

PMID:7874477

Abstract

In a field study nitrogenase activity associated with rice rhizosphere was differently influenced by the applied herbicides. Pretilachlor at two application levels had no effect on nitrogenase activity while butachlor and benthiocarb exerted marginal stimulation. Cinmethylin consistently stimulated nitrogenase activity throughout the plant growth period. Anilofos when applied singly had no substantial effect on nitrogenase activity but in combination with 2,4-D the activity was enhanced. Populations of anaerobic nitrogen-fixing bacteria and Azospirillum sp. and Azotobacter sp. were stimulated in such a combination.

摘要

在一项田间研究中，与水稻根际相关的固氮酶活性受到所施用除草剂的不同影响。两种施用量水平的丙草胺对固氮酶活性没有影响，而丁草胺和杀草丹则有轻微刺激作用。环庚草醚在整个植物生长期间持续刺激固氮酶活性。单施莎稗磷对固氮酶活性没有实质性影响，但与2,4 - D组合时活性增强。在这种组合下，厌氧固氮细菌以及固氮螺菌属和固氮菌属的数量受到刺激。