摘要
裂区设计田间试验结果表明 ,在 3个供氮水平下接种巴西固氮螺菌 ( Azospirillum brasilense)NO4 0 ,使分蘖期与灌浆期水稻根际及根内的固氮菌数量均比对照明显增加 ,而土体中的固氮菌数量未见明显变化 ;同时 ,接种该菌株可显著提高分蘖期与灌浆期水稻新展开叶的叶绿素含量及水稻株高 。
Effects of inoculation with Azospirillum brasilense NO40 isolated from Egypt on rice growth and yields under different nitrogen fertilizer levels were investigated at Dongyang county of Zhejiang province. The results showed that the counts of colony grown on nitrogen free medium isolated from rice rhizosphere and root were increased by inoculating with NO40 in contrast to the control, irrespective of the nitrogen fertilizer levels and rice growing periods. It was found that the plant height, chlorophyll content of the newly developed rice leaves were significantly increased after inoculating with NO40.
出处
《浙江大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2001年第1期33-36,共4页
Journal of Zhejiang University:Agriculture and Life Sciences
基金
国家自然科学基金资助项目(30070443)
关键词
水稻土
联合固氮菌
巴西固氮螺菌
叶绿素
红壤
接种
rice
associative nitrogen fixing bacteria
Azospirillum brasilense
chlorophyll
