摘要
自分离根际联合固氮菌制成的菌剂对小麦、玉米和红薯都具有显著增产作用,增幅分别为10.9%～28.5%,18.5%～28.2%和68.3%～77.5%。所用氮肥水平对联合固氮菌的增产作用没有显著影响,不同联合固氮菌株对几种作物的增产作用没有显著差异。每hm2施用15kg由AN3制成的液体联合固氮菌剂对小麦的增产作用,相当于每hm2施用15kg纯氮对小麦的增产作用。
Yield of wheat, maize and sweet potato was increased by 10.9%～28.5%, 18.5%～28.2% and 68.3%～77.5%, respectively, by inoculation with the associative nitrogen-fixing bacterium strains CN18, CN52 and BN. N fertilizer rate (75 kg N/hm^2 vs. 105 kg N/hm^2) had no significant influence on the yield-improving effect of the strains. No significant difference was observed among the strains studied in their yield-improving effect for the 3 crops. The treatment of the liquid culture of the rhizosphere associative N-fixing bacterium AN3 gave a yield improvement of wheat comparable to that of 15 kg N/hm^2.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2003年第6期506-509,共4页
Journal of Southwest Agricultural University
基金
重庆市重点攻关项目(964320)资助
关键词
联合固氮菌
增产效应
产量
玉米
小麦
红薯
associative nitrogen-fixing bacterium
yield improvement
wheat
maize
sweet potato
