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| 1 | 巨大芽孢杆菌在油菜根部定殖和促生作用的研究显示文摘采用基因标记技术和常规方法跟踪巨大芽孢杆菌A6 (gusA)在缩影系统油菜根际的定殖情况。A6 (gusA)菌在油菜不同根段部位的定殖密度表现从上到下逐渐递减的现象。随着接种后时间的延长而逐渐下降。在根段 8cm以外的根区几乎检测不到接种菌。在油菜播种后 3d ,定殖密度可达最高水平 (8 7×10 5cfug-1根 ) ,然后急速下降 ,30d后保持相对稳定的较低水平 (2 2× 10 2 cfug-1根 )。在促生试验中 ,表现在不同程度上增加植株干重、全氮。 | 胡小加 江木兰 张银波 | 2004 | 土壤学报2004，41，6： | 23 |
| 2 | Dynamics of Microbial Biomass in a Rainfed Soil Under Wheat Cultivation显示文摘A pot experiment was conducted to determine the dynamics of soil microbial biomass in a rainfed soil under wheat cultivation at the University of Arid Agriculture, Rawalpindi, Pakistan. The treatments applied were: 1) a control (CK), 2) NPK (0.44-0.26-0.18 g pot-1), 3) farmyard manure (FYM, 110 g pot-1), 4)poultry manure (PM, 110 g pot-1), 5) FYM (110 g pot-1) + NPK (0.44-0.26-0.18 g pot-1), 6) poultry manure (PM, 110 g pot-1) + NPK (0.44-0.26-0.18 g pot-1), 7) FYM (110 g pot-1) + NPK(S) (0.44-0.26-0.18 g pot-1, one half of the NPK at sowing and the other half one month after sowing), and 8) PM (110 g pot-1) + NPK(S) (0.44-0.26-0.18 g pot-1, one half of the NPK applied at sowing and the other half one month after sowing). The experiment was laid out using a completely randomized design with three replications. Microbial biomass C, N and P contents increased continuously from the beginning of the experiment up to the three-leaf stage. A slight decline was observed at the tillering stage in all treatments except with the organic manures + NPK(S) treatments. After tillering there was an increase in all treatments to the recorded maximum point at the full heading stage in all treatments except with the organic manures + NPK(S) treatments. In the FYM + NPK(S) and PM + NPK(S) treatments; however, there was a continuous increase in microbial biomass up to the heading stage. At the harvesting stage a sharp decline was noted in all treatments. The C:N ratio of microbial biomass in tested soil ranged from 7.8 to 11.3, while C:P ratio of microbial biomass in the tested soil ranged from 22.6 to 35.1 throughout all growth stages of the wheat crop. | M.AKMAL K.S.KHAN XUJian-Ming | 2004 | Pedosphere2004，14，1： | 7 |
| 3 | 一株紫茎泽兰根际细菌分离鉴定及对烟草促生作用研究显示文摘对紫茎泽兰根际分离到细菌ZJZL-1进行形态结构鉴定、生理生化特性测定及扩增16s rDNA序列并进行分析,初步确定ZJZL-1巨大芽孢杆菌(Bacillus megaterium)(序列登录号:KF658192)。ZJZL-1接种盆栽烟草测定其定殖效果及对烟草促生作用。定殖试验结果表明ZJZL-1能在烟株根部成功定殖,35 d后处于6.8×103CFU/g的相对稳定状态;促生试验发现ZJZL-1接种的烟株比对照在中部、上部叶片全磷和全钾的含量在不同程度上增加,表明ZJZL-1能促进烟株对P元素和K元素的吸收。 | 李祖红 曾嵘 刘芳 林选知 张瑞勤 赵明富 文国松 | 2014 | 云南农业大学学报(自然科学版)2014，29，4： | 2 |
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