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您的检索式：作者名="Xiaokun Bu"
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| 1 | Crop rotation-dependent yield responses to fertilization in winter oilseed rape(Brassica napus L.)显示文摘Differences in soil physical, chemical and biological properties between paddy–upland and continuous upland rotations will influence nutrient relations and crop growth. With the aim of estimating rapeseed yield performance in response to fertilization in rice–rapeseed(RR) and cotton–rapeseed(CR) rotations, on-farm experiments were conducted at 70 sites across Hubei province, central China. The economically optimal fertilizer rates of winter oilseed rape in different rotations were determined. Field experiments showed that previous crops significantly influenced seed yields. Without N fertilization,seed yields were significantly lower for the RR rotation than for the CR rotation. The average yield increase ratio and agronomic efficiency associated with nitrogen(N)fertilization in the RR rotation were 96.6% and 6.56 kg kg- 1, significantly higher than those in the CR rotation. No seed yield differences were detected between the two rotations under phosphorus(P) and potassium(K) fertilization. In contrast to the CR rotation, N fertilizer played a more vital role in maintaining high seed yields in the RR rotation owing to the lower indigenous soil N supply. Compared with local N fertilizer recommendation rates for the RR rotation, on average an additional 18 kg N ha- 1was recommended according to the economically optimal N fertilizer rate(EONFR). In contrast, the EONFR was 14 kg N ha- 1lower than the locally recommended N fertilizer rate for the CR rotation. There were no differences between the two rotations for the average economically optimal P and K fertilization rates. Consequently, the average EONFR of winter oilseed rape could be reduced if cotton rather than rice preceded the winter oilseed rape. | Tao Ren Hui Li Jianwei Lu Rongyan Bu Xiaokun Li Rihuan Cong Mingxing Lu | 2015 | The Crop Journal2015，3，5： | 8 |
| 2 | Inefficiency of C3H/HeN Mice to Control Chlamydial Lung Infection Correlates with Downregulation of Neutrophil Activation during the Late Stage of Infection显示文摘我们以前报导在 C3H/HeN (C3H ) 老鼠的 neutrophils 的巨大的渗入不能高效地控制感染和力量贡献的 Chlamydia muridarum (厘米) 到肺感染的这些老鼠的高危险性。为了推进,在 chlamydial 感染期间在 C3H 鼠标定义嗜中性的回答的性质,分别地,我们检验与 neutrophils 渗入和激活有关的粘附分子和 CD11b 的表达式后面的 intranasal 厘米感染。结果证明 selectins (E-selectin, P-selectin 和 L-selectin ) 的表示,和在 C3H 老鼠的肺的细胞间的房间粘附 molecule-1 (ICAM-1 ) 比在 C57BL/6 (B6 ) 更显著地增加了老鼠,更抵抗的紧张。这些结果在 C3H 老鼠与巨大的 neutrophils 渗入相关很好。相反,外部血上的 CD11b 表示和在 C3H 鼠标的肺 neutrophils 在感染(白天 14 ) 的迟了的噬菌体期间与 B6 鼠标相比展出了重要减小。这些调查结果建议在 C3H 鼠标的粘附分子的高级表达式可以提高 neutrophils 招募到肺,但是 neutrophils 上的 CD11b 表示的衰落可以稀释嗜中性的功能。因此, neutrophils 上的 CD11b 下面规定可以贡献 C3H 老鼠的失败控制 chlamydial 肺感染。 | Xiaofei Tang Xiaokun Bu Naihong Zhang Xiaoxia Li Huanjun Huang Hong Bai Xi Yang | 2009 | Cellular & Molecular Immunology2009，6，4： | 2 |
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