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Effect of NPK Application on Yield,Nutrients and Water Utilization Under Sudangrass and Ryegrass Rotation Regime

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Agricultural Sciences in China 2010年第7期9卷 1026-1034页

作者： li wen-xi LU Jian-wei CHEN Fang li xiao-kun College of Resources and Environment Huazhong Agricultural University Wuhan 430070 P.R.China Wuhan Botanical Garden Chinese Academy of Sciences Wuhan 430074 P.R.China

Sudangrass and ryegrass rotation is a new type of cropping system in Jianghan Plain,which develops very fast in recent ***,it is essential to work out the optimal nutrients and water management measures in this new *** effect of NPK fertilizer on yield of forage grass,nutrients and water utilization under sudangrass and ryegrass rotation was studied through continuous pot experiments for three *** results showed that NPK combination could significantly improve the yield of forage *** total yields during the periods of 2005-2006,2006-2007 and 2007-2008 were 1 690.0,2 091.3 and 1 770.7 g/pot,*** yields in PK treatment were 700.7,1 256.9 and 856.3% lower than those of NPK treatment,while the yields in NK treatment were 426.3,384.9 and 792.3% lower than those of NPK treatment,***,the yields in NP treatment were 15.9,4.4 and 10.6% lower than those of NPK treatment,*** NPK combination was found to improve the nutrients uptake,and the total N uptakes during the above periods were 10.0,14.8 and 10.6 times higher than that of PK treatment,respectively,and 3.7,1.8 and 5.1 times higher than those of NK treatment,respectively,but,were similar to NP *** total P uptakes were 4.6,6.8 and 5.3 times higher than those of PK treatment,and were 2.4,2.3 and 2.9 times higher than those of NK treatment,respectively,but were similar to NP *** total K uptakes were 5.2,8.4 and 4.9 times higher than that of PK treatment,3.9,2.3 and 3.9 times higher than those of NK treatment,and 80.9,57.4 and 200.5% higher than those of NP treatment,*** productivity for three years time periods were 16.5,16.1 and 16.2 kg m-3,and were 3.8,5.4 and 4.2 times higher than those of PK treatment,2.3,1.3 and 2.6 times higher than those of NK treatment,and were 16.4,8.8 and 22.4% higher than those of NP treatment,*** soil pH was decreased and soil organic matter was increased in all treatments with in

关键词： sudangrass and ryegrass rotation system NPK fertilizer nutrient uptake water productivity soil nutrition

Time Dependence of Entropy Flux and Entropy Production of a Dissipative Dynamical System Driven by Non-Gaussian Noise

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Communications in Theoretical Physics 2008年第6期49卷 1561-1566页

作者： GUO Yong-Feng XU Wei li Dong-xi xiE wen-xian Department of Applied Mathematics Northwestern Polytechnical University Xi＇an 710072 China

A stochastic dissipative dynamical system driven by non-Gaussian noise is investigated. A general approximate Fokker-Planck equation of the system is derived through a path-integral approach. Based on the definition of Shannon＇s information entropy, the exact time dependence of entropy flux and entropy production of the system is calculated both in the absence and in the presence of non-equilibrium constraint. The present calculation can be used to interpret the interplay of the dissipative constant and non-Gaussian noise on the entropy flux and entropy production.

关键词： information entropy entropy flux and entropy production non-Gaussian noise Fokker-Planck equation

Species identification of poisonous medicinal plant using DNA barcoding

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Chinese Journal of Natural Medicines 2019年第8期17卷 585-590页

作者： liU Miao li xi-wen liAO Bao-Sheng LUO Lu REN Yue-Ying College of Chinese Medicine Materials Jilin Agriculture University Changchun 130118 China Institute of Chinese Materia Medica Academy of Chinese Medical Sciences Beijing 100700 China

The aim is to select a universal DNA barcode for identifying all poisonous medicinal plants in Chinese pharmacopoeia and their poisonous related species or adulterants. We chose 4 commonly used regions as candidate DNA barcodes(ITS2, psb A-trn H,matK and rbc L) and compared their identification efficiency in 106 species from 27 families and 65 genera totally. Data analysis was performed including the information of sequence alignment, inter/intra-specific genetic distance and data distribution, identification efficiency and the situation of Neighbor-Joining(NJ) phylogenetic trees. We found ITS2 sequence region had high variation, stable genetic distance and identification efficiency relatively. The topological structure of NJ phylogenetic tree showed monophyletic. Our findings show that ITS2 can be applied as a universal barcode for identifying poisonous medicinal plants in Chinese pharmacopoeia and their poisonous related species or adulterants.

关键词： Sequence Poisonous herbal medicine Genetic distance DNA barcoding ITS2 Blast

Complete chloroplast genome of Salvia plebeia:organization, specific barcode and phylogenetic analysis

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Chinese Journal of Natural Medicines 2020年第8期18卷 563-572页

作者： CUI Ning liAO Bao-Sheng liANG Cong-lian li Shi-Feng ZHANG Hao XU Jiang li xi-wen Chen Shi-lin College of Pharmacy Shandong University of Traditional Chinese MedicineJi’nan 250300China Institute of Chinese Materia Medica China Academy of Chinese Medical SciencesBeijing 100700China Central Laboratory Shandong Academy of Chinese MedicineJi’nan 250014China

Salvia plebeia has been in use as traditional Chinese medicine(TCM)for more than 500 *** this study,the complete chloroplast(cp)genome of *** was sequenced,assembled and compared to those of other five published Salvia cp *** was found that the cp genome structure of *** was well conserved and had a total size of 151062 *** parameters were used to display the usage conditions of the codons of the amino acids in Salvia *** the number of protein-coding genes in each species was the same,the total number of codons was *** for amino acids Trp and Met whose Relative Synonymous Codon Usage(RSCU)value of one condon was equal to 1,the remaining 19 amino acids had 1-3 preferred *** preferred codon names of each amino acid were *** period size for the tandem repeats of six species ranged from 9 to 410 *** cp genomes mainly possessed tandem repeats with a copy number less than or equal to *** sequence length of tandem repeats of the six species ranged from 25 to 824 *** viarable regions including four intergenic spacers and six partial genes were discovered as potential specific barcodes for Salvia species through cp genome-wide ***,we performed phylogenetic analyses based on the complete cp genome and coding sequences *** results provide information to help construct the cp genome library for Salvia,which may support studies of phylogenetics,DNA barcoding,population and transplastomics.

关键词： Simple sequence repeat Chloroplast Tandem repeats Microsatellites Barcode

Survey of traditional Dai medicine reveals species confusion and potential safety concerns: a case study on Radix Clerodendri Japonicum

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Chinese Journal of Natural Medicines 2017年第6期15卷 417-426页

作者： DUAN Bao-Zhong FANG Hai-Lan li xi-wen HUANG lin-Fang WANG Ping CHEN Shi-lin College of Pharmaceutical Sciences Hubei University of Chinese Medicine Institute of Chinese Materia Medica China Academy of Chinese Medical Sciences College of Pharmaceutical Sciences Dali University Institute of Medicinal Plant Development Chinese Academy of Medical Sciences & Peking Union Medical College

The adulteration of herbal products is a threat to consumer safety. In the present study, we surveyed the species composition of commercial Radix Clerodendri Japonicum products using DNA barcoding as a supervisory method. A reference database for plant-material DNA-barcode was successfully constructed with 48 voucher samples from 12 Clerodendrum species. The database was used to identify 27 Radix Clerodendri Japonicum decoction piece samples purchased from drug stores and hospitals. The DNA sequencing results revealed that only 1 decoction piece(3.70%) was authentic C. japonicum, as recorded in the Dai Pharmacopeia, whereas the other samples were all adulterants, indicating a potential safety issue. The results indicate that decoction pieces that are available in the market have complex origins and that DNA barcoding is a suitable tool for regulation of Dai medicines.

关键词： Dai medicine DNA barcode Radix Clerodendri Japonicum Adulterants ITS 2

Study of improved gray predictive PID control algorithm

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重庆邮电大学学报（自然科学版） 2009年第2期21卷 189-191页

作者： xiE Shou-yong li xi-wen YANG Shu-zi YANG Ming-jin College of Mechanical Science and Engineering Huazhoug University of Science and TechnologyWuhan 430074P. R. China College of Engineering and Technology Southwest University Chongqing 400716 P. R. China

According to these characteristics of the movement of the special platform servo,a new improved grey predictive PID control algorithm was proposed based on the grey predictive PID,and then the algorithm was simulated by *** a result that it can improve the response speed and stability of the system,and meet the demand of the system.

关键词： PID控制算法灰色预测 MATLAB 算法模拟反应速度系统伺服

Prediction of the globally ecological suitability of Panax quinquefolius by the geographic information system for global medicinal plants(GMPGIS)

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Chinese Journal of Natural Medicines 2019年第7期17卷 481-489页

作者： SHEN liang li xi-wen MENG xiang-xiao WU Jie TANG Huan HUANG lin-Fang xiAO Shui-Ming XU Jiang CHEN Shi-lin Institute of Chinese Materia Medica China Academy of Chinese Medical Sciences Beijing 100700 China Institute of Medicinal Plant Development (IMPLAD) Chinese Academy of Medical Sciences (CAMS) Peking Union Medical College (PUMC) Beijing 100193 China

American ginseng(Panax quinquefolius L.) is a well-known Asian traditional herbal medicine with a large market demand. The plant is native to eastern North America, and its main producing areas worldwide are decreasing due to continuous cropping obstacles and environmental changes. Therefore, the identification of maximum similarities of new ecological distribution of ***, and prediction of its response to climate change in the future are necessary for plant introduction and cultivation. In this study, the areas with potential ecological suitability for P. quinquefolius were predicted using the geographic information system for global medicinal plants(GMPGIS) based on 476 occurrence points and 19 bioclimatic variables. The results indicate that the new ecologically suitable areas for P. quinquefolius are East Asia and the mid-eastern Europe, which are mainly distributed in China, Russia, Japan, Ukraine, Belarus, North Korean, South Korea, and Romania. Under global climate change scenarios, the suitable planting areas for P. quinquefolius would be increased by 9.16%–30.97%, and expanding north and west over the current ecologically suitable areas by 2070. The potential increased areas that are ecologically suitable include northern Canada, Eastern Europe, and the Lesser Khingan Mountains of China, and reduced regions are mainly in central China, the southern U.S., and southern Europe. Jackknife tests indicate that the precipitation of the warmest quarter was the important climatic factor controlling the distribution of P. *** findings can be used as a useful guide for P. quinquefolius introduction and cultivation in ecologically suitable areas.

关键词： American ginseng Panax quinquefolius Ecological suitable area Climate change GMPGIS Jackknife test

Content of Nutritional Elements in Sudangrass and Ryegrass Determined by ICP-AES

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光谱学与光谱分析 2011年第9期31卷 2555-2557页

作者： li wen-xi LU Jian-wei Saman P Seneweera WU Ji CHEN Fang LU Jun-ming li xiao-kun College of Resources and Environment Huazhong Agricultural University Wuhan 430070 China School of Agriculture and Food Systems Faculty of Land and Foodthe University of Melbourne Horsham Victoria 3401 Australia Institution of Soil and Fertilizer Anhui Academy of Agricultural Sciences Hefei 230031 China International Plant Nutrition Institute China Program Wuhan 430074 China Agricultural and Technical Center Datonghu Administration District of Honghu City Honghu 434300 China

The sudangrass(Sorghumsudanense) and ryegrass(Lolium multiflorum L.) rotation is a newtype of cropping system,which has developed rapidly in recent years in the south of *** contents ofnutritional elements for forage grass in the sudangrass and ryegrass rotation system were determined by *** results showed that there were abundant and essential nutritional elements for ani mals in sudangrassand *** contents of P,K,Ca,Mg,S,Fe,B,Cu,Zn and Mn for sudangrass were 0.20 %～0.29 %,1.94 %～2.57 %,0.62 %～0.97 %,0.39 %～0.69 %,0.12 %～0.18 %,108.35 ～180.12,3.04 ～5.96,6.17 ～10.02,20.37 ～31.36 and 46.80 ～101.29 ***-1,*** contents of P,K,Ca,Mg,S,Fe,B,Cu,Zn,Mn for ryegrass were 0.39 %～0.70 %,3.77 %～5.07 %,0.61 %～0.84 %,0.28 %～0.47 %,0.32 %～0.41 %,291.65 ～632.20,2.13 ～3.23,13.29 ～15.19,30.73 ～42.98 and 92.08 ～156.04 ***-1,respectively,and there were differences between various periods in nutritional elements inthe two forage *** application of ICP-AES could reflect fast and efficiently the content of nutritionalelements for forage grass as ani mals feed.

关键词： ICP-AES Sudangrass Ryegrass Nutritional elements

Utilization Survey of livestock Manure Resources in Large-scale Farms of Yangzhou

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Animal Husbandry and Feed Science 2013年第1期5卷 37-40,49页

作者： ZHANG Yue-ping MAO Wei li wen-xi Yangzhou Station of Soils and Fertilizers

Based on surveying the conditions of large -scale farms and commercial manure in the each county of Yangzhou city, the situations and problems for utilization of livestock manure resources were grasped. After an analysis of the potential value of livestock manure, the suggestion and strategy for utilization of livestock manure resources were proposed based on the actual conditions in Yangzhou city.

关键词： Large - scale farms livestock manure Resources utilization