, 2009 采用砂培试验研究了几种低分子量有机酸(柠檬酸、草酸、苹果酸和三种酸的混合)对根系形态和磷素吸收积累的影响。结果表明:不同有机酸处理均显著降低了大豆根系生物量和根冠比,同时使根长、根表面积和根体积均显著降低,而且随着有机酸浓度的增加抑制作用加强,几种有机酸混合后,抑制作用也相对增强,表明不同有机酸处理均抑制了大豆根系的生长,同时使大豆根系的竞争能力降低。几种有机酸处理均降低了大豆对磷素的吸收积累,从而降低了大豆对磷素的吸收效率 ...
严君 +5 more
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[Donor leukemia relapse and conversion type after allogeneic hematopoietic stem cell transplantation: a case report]. [PDF]
Zhonghua Xue Ye Xue Za ZhiLi RJ, Xiong M, Wang G, Cui Z, Zhu JL.
europepmc +1 more source
[Refined surgical protocol and clinical efficacy of total expansion auricular reconstruction surgery]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiHao DY, Song BQ, Dong LW, Cang ZZ.
europepmc +1 more source
[Reconstruction of superficial organs: a leap from structural restoration to functional rehabilitation]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiZan T, Gao YS.
europepmc +1 more source
, 2016 根系形态特征是评价植物适应胁迫环境的重要指标。以黄土丘陵半干旱区天然草地群落优势种白羊草为材 料，研究了其根系生长和形态特征与水分供应条件的关系。采用盆栽控制试验，设置３个水分处理：高水（ＨＷ， ８０％田间持水量）、中水（ＭＷ，６０％田间持水量）和低水（ＬＷ，４０％田间持水量），分别在拔节期、开花期、结实期改 善水分供应水平，在生育期末测定了白羊草根系生物量和各项形态指标。结果表明：白羊草根系生长与水分供应 条件密切相关，持续高水处理有利于白羊草根系生长，其根系生物量、总根长和根表面积均显著提高（Ｐ＜０．
吴爱姣 +5 more
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[Long-term prognosis and influencing factors of anterior composite resin restoration]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiChen W, Wu F, Wei X.
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[Exploration and Practice of Constructing a New Ecology of Experimental Stomatology Practice Teaching Driven by Digital Intelligence]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanZhang Y +7 more
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[Restorative strategies for complex crown-root fractures in the esthetic zone: a risk assessment based on the restoration-tooth-periodontium interface]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanSun A, Fu B, Zhu H.
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[Interpretation of the group standard: Clinical Protocol for Bone Harvesting and Grafting under Digital Guidance in Oral Implantology]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiWang J, Man Y.
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[Clinical decision-making for immediate restoration of terminal dentition: determination and transfer of jaw relations]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiGu Y, Yang S, Yuan Q.
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