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| 1 | N-Expert专家系统在无公害菠菜生产中的应用显示文摘根据无公害蔬菜生长的要求,通过应用德国的氮素专家系统,在引入保证蔬菜的目标产量所要求的土壤最低Nmin残留量(Nmin缓冲值)概念的基础上,以传统的氮素投入为对照,对秋季露地菠菜的氮素施肥进行推荐。这表明在不断优化参数的基础上,N Expert专家系统不仅能够减少肥料的用量,不影响作物产量,而且对提高菠菜的品质和进行蔬菜可持续生产方面有很好的作用。 | 陈清 张宏彦 张晓晟 李晓林 Liebig H P | 2002 | 华北农学报2002，17，4： | 12 |
| 2 | 控制淋洗条件下土壤-花椰菜体系无机氮动态及平衡显示文摘在北京郊区中壤质潮土上设置田间试验。结果表明:花椰菜获最大产量的氮供应量为300kghm-2。生育期花椰菜主要吸收表层(0~30cm)土壤中的无机氮,对下层(30~60cm)土壤无机氮(Nmin)的利用随氮供应量的增加而减少。不同生育期0~60cm土层中无机氮(Nmin)含量均随氮供应量增加而增加,但施肥后土壤中最高无机氮(Nmin)含量出现的时间随氮供应量增加而延迟。花椰菜生育期土壤有机氮矿化速率随生长期延长而增加,平均达N1.3kghm-2d-1,相当于各处理总吸氮量的47.5%~89.2%。试验后0~30cm及30~60cm土层无机氮(Nmin)含量随氮供应量增加而明显增加,但60~90cm土层无机氮(Nmin)受氮供应的影响不明显。花椰菜当季氮肥利用率及氮素利用率随施氮量增加而降低,最佳产量时的氮肥利用率及氮素利用率分别为36.5%和50.8%。土壤-花椰菜体系氮素表观损失量随氮施用水平的增加而明显增加,但其占总氮供应(肥料氮+播前土壤氮)的比例受氮供应的影响不明显,大致为20%。 | 张宏彦 陈清 李晓林 张福锁 Liebig H P | 2004 | 土壤通报2004，35，2： | 6 |
| 3 | Evaluation of current fertilizer practice and soil fertility in vegetable production in the Beijing region显示文摘 | Qing Chen Xiaosheng Zhang Hongyan Zhang Peter Christie Xiaolin Li Dieter Horlacher Hans-Peter Liebig | 2004 | Nutrient Cycling in Agroecosystems2004，，1： | 3 |
| 4 | Anomalous origin of the right vertebral artery: review of the literature and case report of right vertebral artery origin distal to the left subclavian artery 显示文摘 | Lemke A J Benndorf G Liebig T | 1999 | Am J Neuroradiol1999，20，7： | 1 |
| 5 | Thermal stability of Fe/Mo layers显示文摘 | Liebig A Hjorvarsson B Rudiger U | 2006 | Thin Solid Films2006，496，： | 1 |
| 6 | Stand der Pfannen- metallurgie und Aktuelle Trends显示文摘 | Fandrich R Kleimt B Liebig H | 2011 | Stahl und Eisen2011，，131： | 1 |
| 7 | Une note sur la nitrification显示文摘 | Von Liebig J | | Annales de Chim- ie et de Physique0，35，： | 1 |
| 8 | Appropriateness of management zones for characterzing spatial variability of soil properties and irrigated corn yields across years显示文摘 | SCHEPERS A R SHANAHAN J F LIEBIG M K | 2004 | Agron J2004，96，： | 1 |
| 9 | Dual-polarization wavelength conversion of 16-QAM signals in a single silicon waveguide with a lateral p-i-n diode[Invited]显示文摘A polarization-diversity loop with a silicon waveguide with a lateral p-i-n diode as a nonlinear medium is used to realize polarization insensitive four-wave mixing. Wavelength conversion of seven dual-polarization 16-quadrature amplitude modulation(QAM) signals at 16 GBd is demonstrated with an optical signal-to-noise ratio penalty below 0.7 dB. High-quality converted signals are generated thanks to the low polarization dependence(≤0.5 dB) and the high conversion efficiency(CE) achievable. The strong Kerr nonlinearity in silicon and the decrease of detrimental free-carrier absorption due to the reverse-biased p-i-n diode are key in ensuring high CE levels. | FRANCESCO DA Ros ANDRZEJ GAJDA ERIK LIEBIG EDSON P.DA SILVA ANNA PECZEK PETER D.GIROUARD ANDREAS MAI KLAUS PETERMANN LARS ZIMMERMANN MICHAEL GALILI LEIF K.OXENLOWE | 2018 | Photonics Research2018，6，5： | 1 |
| 10 | Perineural invasion in cancer:a review of the literature显示文摘 | Liebig C Ayala G Wilks JA | | 0，，15： | 1 |
| 11 | Endovascular management of dural carotid-cavernous sinus fistulas in 141 patients显示文摘 | Henkes H Liebig T | 2006 | Neuroradiology2006，48，： | 1 |
| 12 | Response of soil carbonand nitrogen to transplanted alfalfa in North Dakota rangeland显示文摘 | Liebig M A Hendrickson J R Berdahl J D | 2010 | Canadian journal of soil science2010，90，3： | 1 |
| 13 | Soil health and sustainabili- ty显示文摘 | Doran J W San'antonio M Liebig M A | 1996 | Advances in Agronomy1996，56，8： | 1 |
| 14 | Nitrification performance and nitrifier community composition of a chemostat and a membrane-assisted bioreactor for the nitrification of sludge reject water 显示文摘 | Liebig T Wagner M Bjerrum L | 2001 | Bioproeess Biosyst Eng2001，24，4： | 1 |
| 15 | Lipomatous secretory meningioma:case report and review of the literature显示文摘 | Liebig T Hoffmann T Hosten N | | 0，，10： | 1 |
| 16 | Synthesis, enzyme-substrate interaction, and herbicidal activity of phosphoryl analogues of glycine 显示文摘 | NATCHEV I A LIEBIGS A | 1988 | Chemistry1988，52，4： | 1 |
| 17 | Genetic variability of encephalomyocarditis virus (EMCV) isolates 显示文摘 | Denis P Liebig H D Nowotny N | 2006 | Vet Microbiol2006，113，： | 1 |
| 18 | Soil carbon and nitrogen across a chronsequence of woody plant expansion in North Dakota显示文摘 | Springsten A Loya W Liebig M | 2010 | Plant Soil2010，，328： | 1 |
| 19 | Neonatal screening for very long-chain acyl-CoA dehygrogenase deficiency: enzymatic and molecular evaluation of neonates with elevated C14:1-carnitine levels 显示文摘 | Liebig M Schymik I Mueller M | 2006 | Pediatrics2006，118，3： | 1 |
| 20 | Multidisciplinary Rehabilitation Versus Usual Care for Chronic Low Back Pain in the Community:Effects on Quality of Life显示文摘 | Lang E Liebig K Kastner | 2003 | Spine J2003，3，4： | 1 |
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