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| 固氮螺菌 (Azosprillum brasilense)NO40在红壤性水稻土上的接种效应 | |
| 引用本文： | 方萍,张丽梅,贾小明,M N A Omar. 固氮螺菌 (Azosprillum brasilense)NO40在红壤性水稻土上的接种效应[J]. 浙江大学学报(农业与生命科学版), 2001, 27(1): 33-36 |
| 作者姓名： | 方萍 张丽梅 贾小明 M N A Omar |
| 作者单位： | 1. 浙江大学资源科学系，浙江 杭州 310029 2. 浙江大学生物系，浙江 杭州 310029 3. 埃及农业研究中心土壤、水与环境研究所 |
| 基金项目： | 国家自然科学基金资助项目(30070443) |
| 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)NO40，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，在低氮水平下使水稻单株干物重和单株籽粒产量有所提高。 |
| 关 键 词： | 水稻 联合固氮菌 巴西固氮螺菌 叶绿素 |
| 文章编号： | 1008-9209(2001)01-0033-04 |
| 修稿时间： | 2000-05-10 |
Effects of inoculationwith tropical rice associative N2-fixing bacteria Azospirillum brasilense NO40 in the redpaddy soil |
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| Abstract: | Effects of inoculation with Azospirillum brasilense NO40 isolatedfrom 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. |
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