|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 铅镉复合污染对水稻生长及产量的影响(摘要)(英文)显示文摘[目的]探讨铅镉复合污染对水稻生长、产量及品质的伤害及机理。采用盆栽试验,研究了不同程度的铅镉复合污染对水稻生长发育及产量品质的影响。[结果]铅镉低浓度胁迫能够促进水稻生长,高浓度抑制水稻的株高;铅镉胁迫显著降低了水稻的分蘖数,随着胁迫浓度增加,分蘖数下降幅度增大;铅镉胁迫显著降低了水稻每盆穗数、结实率、千粒重和产量,低浓度胁迫下每穗总粒数显著增加,高浓度胁迫下每穗总粒数显著降低;铅镉低浓度胁迫下糙米率和精米率显著增加,高浓度胁迫下糙米率和精米率显著降低,整精米率随处理浓度的增加而显著下降;水稻籽粒中铅镉含量与土壤中铅镉浓度成显著正相关,土壤铅镉含量达到中高浓度时,水稻籽粒铅镉含量严重超标,铅镉最高超标达333%和122%。[结论]该研究为污染地区水稻栽培技术体系的建立提供依据。 | 王永强 肖立中 李诗殷 郭杨 蔡信德 | 2010 | Agricultural Science & Technology2010，11，5： | 14 |
| 2 | Research Progress on Heat Stress of Rice at Flowering Stage显示文摘Global warming has caused frequent occurrence of heat stress at the flowering stage of single-season rice in the Yangtze River region of China, which results in declines of spikelet fertility and yield in rice. Rice flowering stage is the most sensitive period to high temperatures, and therefore, the key for heat stress happening is the flowering stage coinciding with high temperature, which causes spikelet fertility decreasing in heat-sensitive varieties, and is the major factor for heat injury differences among various rice planting regions. With the development of rice breeding, temperature indexes for heat stress has been converted from daily maximum temperature of 35 oC to 38 oC with the stress duration of more than 3 d. During the flowering stage, anther dehiscence inhibition and low pollen shedding onto the stigma are two main reasons for spikelet fertility reduction under high temperatures. At panicle initiation stage, high temperatures aggravate spikelet degeneration, and destroy floral organ development. Various types of rice varieties coexist in production, and indica-japonica hybrid rice demonstrates the highest heat resistance in general, followed by indica and japonica rice varieties. In production, avoiding high temperature is the main strategy of preventing heat stress, and planting suitable cultivars and adjustment of sowing date are the most effective measures. Irrigation is an effective real-time cultivation measure to decline the canopy temperature during the rice flowering stage. We suggested that further study should be focused on exploring heat injury differences among different rice variety types, and innovating rice-planting methods according to planting system changes in rice planting regions with extreme heat stress. Meanwhile, high temperature monitor and warning systems should be improved to achieve optimal heat stress management efficiencies. | WANG Yaliang WANG Lei ZHOU Jianxia HU Shengbo CHEN Huizhe XIANG Jing ZHANG Yikai ZENG Yongjun SHI Qinghua ZHU Defeng ZHANG Yuping | 2019 | Rice science2019，26，1： | 13 |
| 3 | Comparison of agronomic performance between inter-sub-specific hybrid and inbred japonica rice under different mechanical transplanting methods显示文摘Mechanical transplanting has been applied to rice cultivation to save labor costs and ease labor shortages in Asian countries, especially in China. However, little information is available related to the characteristics of agronomic performance when comparing inter-sub-specific hybrid rice(IHR) and inbred japonica rice(IJR) under mechanical transplanting method. In 2013 and 2014, field experiments were conducted using IHR(Yongyou 2640) and IJR(Wuyunjing 24) under two cultivation patterns, that is, pot seedlings mechanically transplanted(PS) and carpet seedlings mechanically transplanted(CS). Grain yield, yield components, leaf area index(LAI), leaf area duration(LAD), aboveground biomass, crop growth rate(CGR), nitrogen(N) uptake, and N accumulation were investigated. When compared with CS, PS displayed significantly increased grain yield for both varieties because the larger sink size allowed higher N accumulation from panicle initiation to maturity. Moreover, total aboveground biomass under PS increased significantly compared with that under CS; that is, higher photosynthetic productivity resulted from a greater LAI and higher LAD during the grain filling stage. Higher N absorption capacity in the middle and late growth periods resulted in significantly enhanced total N uptake under PS. When compared with IJR for both treatments, IHR generated 75.2% more grain yield. However, the characteristics creating high yield of IHR were different from those of IJR. Greater aboveground biomass production as well as higher N uptake and accumulation created higher grain yield in IHR than in IJR. These results suggest higher yield could be achieved using PS with IHR, attributing to exploit both yield superiority and productive potential. | HU Ya-jie WU Pei ZHANG Hong-cheng DAI Qi-gen HUO Zhong-yang XU Ke GAO Hui WEI Hai-yan GUO Bao-wei CUI Pei-yuan | 2018 | Journal of Integrative Agriculture2018，17，4： | 4 |
| 4 | 基于正交试验的油菜高产栽培技术组合研究显示文摘从品种、种植密度、种植方式、氮肥施用4个因子的3个水平对油菜进行了正交试验研究,结果表明:适宜贵州省开阳县的油菜最佳配套组合技术为品种黔油28,种植密度为10.5万株/hm2,种植方式为等行双株种植,氮肥施肥比为基肥∶追肥=2∶3。 | 石梅 杜才富 沈奇 秦信蓉 张敏琴 雷绍林 | 2010 | 农技服务2010，27，12： | 3 |
| 5 | Selection efficiencies for improving drought/salt tolerances and yield using introgression breeding in rice(Oryza sativa L.)显示文摘The backcross(BC) breeding strategy has been increasingly used for developing high yielding varieties with improved abiotic stress tolerances in rice. In this study, 189Huang-Hua-Zhan(HHZ) introgression lines(ILs) developed from three different selection schemes were evaluated for yield related traits under drought stress and non-stress conditions in the target and off-season winter nursery environments to assess the selection efficiency of BC breeding for improving different complex traits, and led us to five important results. The first result indicated that the primary target traits should be selected first in the target environments(TEs) in order to achieve the maximum genetic gain. Secondly, BC breeding for drought tolerance(DT) in rice was almost equally effective by strong phenotypic selection in the main target environments and in the winter-season of Hainan.Thirdly, exploiting genetic diversity in the subspecific gene pools is of great importance for future genetic improvement of complex traits in rice. Fourthly, considerable genetic gain can be effectively achieved by selection for secondary target traits among the ILs with the primary traits. Finally, the developed ILs provide useful materials for future genetic/genomic dissection and molecular breeding of complex traits. | Ying Wang Lubiao Zhang Afif Nafisah Linghua Zhu Jianlong Xu Zhikang Li | 2013 | The Crop Journal2013，1，2： | 2 |
| 6 | New measurement of thick target yield for narrow resonance at Ex= 9.17 MeV in the 13C(p, γ)14N reaction显示文摘High energy γ-rays can be used in many fields, such as nuclear waste transmutation, flash photographics, and astrophysics. The13 C(p, γ)14 N resonance reaction was used to generate high energy and mono-energetic γ-rays in this work. The thick-target yield of the 9.17-MeV γ-ray from the resonance in this reaction was determined to be(4.7±0.4)×10-9γ/proton,which was measured by a HPGe detector. Meanwhile, the angular distribution of 9.17-MeV γ-ray was also determined.The absolute efficiency of HPGe detector was calibrated using56 Co and152 Eu sources with known radioactive activities and calculated by GEANT4 simulation. | 党永乐 刘伏龙 付光永 吴笛 贺创业 郭冰 王乃彦 | 2019 | Chinese Physics B2019，28，6： | 2 |
| 7 | Structural isomer and high-yield of Pt1Ag28 nanoduster via one-pot chemical wet method显示文摘In order to understand the structure-property correlation and explore the application of metal nanoclusters, it is important and intriguing to determine their crystal structure and obtain high-yield. At the same time, this is also a challenge in nanoscience and technology. Here, we report the highly efficient synthesis of Pt1Ag28 nanocluster via one-pot chemical wet method. The crystal structure of Pt1Ag28 nanocluster was determined by X-ray crystallography to be a face centered cubic (FCC) kernel. This novel structure is the structural isomerization of Pt1Ag28 nanocluster reported before. This phenomenon is first discovered in the synthesis of alloy nanoclusters. In addition, Pt1Ag28 nanocluster has high yield and exhibits potential optics in the near infrared (NIR) fluorescent imaging. The time-dependent density functional theory (TD-DFT) calculation implied that the optical property of Pt1Ag28 was sensitive to its structure. This work provides a simple method to synthesize alloy nanoclusters with structural isomerization. | Xinzhang Lin Chao Liu Keju Sun Ren'an Wu Xuemei Fu Jiahui Huang | 2019 | Nano Research2019，12，2： | 1 |
| 8 | Precipitation behavior of Ti in high strength steels显示文摘Precipitation behavior of Ti in high strength steels was investigated by means of the equilibrium solid solubility theory. The contributions of Ti content to yield strength were calculated. The calculated results were verified by the hot rolling experiment for C–Mn steel and C–Mn–Ti micro alloyed steel, respectively. The research results show that the precipitates are mainly Ti N at the higher temperature. With the decreasing temperature, the proportion of Ti C in precipitates increases gradually. When the temperature drops to 800 °C, Ti C will become predominant for the precipitation of Ti. When Ti content is less than 0.014%(mass fraction), Ti has little influence on the yield strength. When Ti content is in the range of 0.014%–0.03%(mass fraction), the yield strength of Ti micro alloyed steel is greatly increased, which leads to instability of the mechanical properties of the steel. Therefore, the design of Ti content in high strength steels should avoid this Ti content range. When Ti content is higher than 0.03%, the yield strength increases stably. In this experiment, when added Ti content was controlled in the range of 0.03%–0.05%, the contribution to the yield strength of Ti micro alloyed steel can reach about 92.44 MPa. | 吴思炜 刘振宇 周晓光 杨浩 王国栋 | 2017 | Journal of Central South University2017，24，12： | 1 |
| 9 | Effects of Different Ridge Culture Ways on Stem Diameter,Plant Height,the Number of Leaves and Yield of Phaseolus vulgaris L. under Dry Farming Conditions显示文摘The variety 'Aifeng' was used as experimental material,and the stem diameter,plant height,the number of leaves and yield of P. vulgaris under three ways of ridge culture (bedding,high ridge and M ridge) were observed and detected to study the effects of different ridge cultures on the growth and yield. The results showed that the stem diameter,plant height,the number of leaves and yield under M ridge culture were higher than that of bedding and high ridge. | NIE Hong-mei1,XING Guo-ming1,ZHENG Shao-wen1,WEN Bian-ying21. College of Horticulture,Shanxi Agricultural University,Taigu 030801 2. Vegetables Office in Yangqu County,Shanxi Province,Yangqu 030100 | 2010 | Agricultural Science & Technology2010，11，5： | 1 |
| 10 | Triacontyl modified silica gel as a sorbent for the preconcentration of polycyclic aromatic hydrocarbons in aqueous samples prior to gas chromatographic-mass spectrometry determination显示文摘Triacontyl modified silica gel as a sorbent coupled with gas chromatography-mass spectrometry (GC-MS) was developed to determine EPA prior 16 polycyclic aromatic hydrocarbons (PAHs) in water samples. Various parameters of solid-phase extraction such as organic modifier solvent, eluent, sample flow rate and volume were optimized. The developed method was found to yield a linear calibration curve in the concentration range of 0.05-8 μg/L with respect to naphthalene, acenaphthylene, acenaphthene and 0.01-8μg/L for dibenz[a,h]anthracene and 0.05-14 μg/L for fluorene, phenanthrene, anthracene and 0.01-14 μg/L for the rest of analytes. Furthermore, the good accuracy and repeatability of the method made sure the requirements for achieving reliable analysis of PAHs in the environmental water samples, and the recoveries of optimal method were in the range of 80-120% except to higher volatility PAHs. C30-bonded silica was proved to be an efficient sorbent for extraction of high molecular weight PAHs. | Tsuneaki Maeda | 2010 | Chinese Chemical Letters2010，21，6： | 1 |
| 11 | High performance low cost steels with ultrafine grained and multi-phased microstructure显示文摘Ultrafine grained ferrite was obtained through tempering cold rolled martensite with an average grain size of 200―400 nm in a low carbon and a microalloyed steel. Thermal and mechanical stability of the two steels was studied. Due to the pinning effect of microalloyed precipitates on the movement of dislocations and grain boundaries, the recrystallization and grain growth rate were retarded, and the thermal stability of ultrafine grained microstructure was improved. The ultrafine grained ferritic steel was strengthened, but its strain hardening rate was reduced. It seems that the tiny carbide precipitates have no significant effect on work hardening rate. The ultrafine grained ferrite+martensite dual phase microstructure was obtained in the microalloyed steel through intercritically annealing cold rolled martensite. The resulting multiphase microstructure has a tensile strength higher than 1.0 GPa with a yield ratio lower than 0.7. Another type of multiphase microstructure with nanoscaled lath bainite+ retained austenite was obtained through an isothermal heat treatment in low temperature bainite transformation region in high carbon steel. The tensile strength was as high as 1.64 GPa with a yield ratio of 0.84. | LIU XiangHua LAN HuiFang DU LinXiu LIU WeiJie | 2009 | Science China(Technological Sciences)2009，52，8： | 1 |
| 12 | Preparation of carbon nitride nanoparticles by nanoprecipitation method with high yield and enhanced photocatalytic activity显示文摘As an emerging 2D conjugated material,graphitic carbon nitride(CN) has attracted great research attention as important catalytic medium for transforming solar energy.Nanostructure modulation of CN is an effective way to improve catalytic activities and has been extensively investigated,but remains challenging due to complex processes,time consuming or low yield.Here,taking advantage of recent discovered good solvents for CN,a nanoprecipitation approach using poor solvents is proposed for preparation of CN nanoparticles(CN NPs).With simple processes of CN dissolution and precipitation,we can quickly synthesize CN NPs(^40 nm) with a yield of up to 50%,the highest one to the best of our knowledge.As an example of potential applications,the as-prepared CN NPs were applied to photocatalytic degradation of dyes with an evident boosted performance up to 2.5 times.This work would open a new way for batch preparation of nanostructured CN and pave its large-scale industrial applications. | Ziyu Gan Chaofeng Huang Yanfei Shen Qing Zhou Dan Han Jin Ma Songqin Liu Yuanjian Zhang | 2020 | Chinese Chemical Letters2020，31，2： | 1 |
| 13 | Chemical Fertilizer Reduction and High Yield Cultivation Technique for Peanut显示文摘For a long time,the amount of fertilizer applied to peanuts in China has been much higher than that of other main peanut producing countries.At the same time of increasing production,chemical fertilizers have also brought many adverse effects,which have brought potential threats to the sustainable development of peanut production.While continuously increasing the yield,reducing the amount of chemical fertilizer has become an urgent problem to be solved in peanut production of China.Based on the research results of our team,this paper appropriately absorbed the latest research progress of chemical fertilizer reduction in related fields,and established the cultivation technique for peanut fertilizer reduction and high yield under different cultivation modes,to realize the synchronization of fertilizer reduction and yield increase for peanut production.The technique includes two parts:common technology and different cultivation mode fertilization schemes.The former includes crop rotation,proper deep tillage,application of organic fertilizer,selection of nutrient-efficient varieties,topdressing of foliar fertilizer,etc.,the latter includes film mulching spring peanut,continuous cropping field,acidified soil,peanuts interplanting with wheat,and summer direct sowing,etc.This technique provides a technical support for the chemical fertilizer reduction of peanut production in China. | Yaping ZHENG Shifu WANG Zulin ZHENG Lili WANG Chunxiao WANG Zeqi LU Wei JIANG Hongwei ZANG Yongmei ZHENG | 2019 | Asian Agricultural Research2019，11，10： | 1 |
| 14 | 优质黑小麦高产栽培技术研究显示文摘黑小麦是我国独有的珍贵稀有品种,相对于普通小麦,具有微量元素、蛋白质和氨基酸含量高等优势,是老少皆宜的理想食品,因此具有广阔的市场发展前景。通过对黑小麦营养成分和市场发展潜力的分析,着重阐述了黑小麦1号的高产栽培技术。 | 郭媛 | 2010 | 农业技术与装备2010，，14： | 1 |
| 15 | Mechanisms of plastic deformation for powder materials in cold working显示文摘To deal with the discontinuity of particulate media and subsequent uncertainty of stress, based on the probability theory for mechanics of particulate media, Mohr-Coulomb yield criterion of particulate media, and the theory of crystal deformation, we put forward the statistical mechanisms of deformation of powder materials in cold working and mechanism of texture development of the high temperature superconducting wire/tape. A new yield criterion of powder materials is proposed. | 张连洪 李双义 | 2003 | Science China(Technological Sciences)2003，46，4： | 0 |
| 16 | Study on Key Techniques for Precise and Quantitative, Stable and High Yield Cultivation of Peanuts in Eastern Henan Region显示文摘Peanut is a main industrial crop in the eastern Henan region. Its benefits directly affect the economic income of local farmers. Therefore, scientific cultivation of peanuts is an important way to increase farmers' income in the eastern Henan region. This paper firstly introduced the key techniques for precise and quantitative, stable and high yield cultivation of peanuts in the eastern Henan region. From the field selection, scientific seed selection, precise quantitative sowing, fertilizer and water management, chemical control technologies, prevention and control of pests and diseases, and timely harvesting, it made an in-depth analysis. It is expected to provide data references for further improvement of stale and high yield cultivation technical system, and provide technical guidance for raising the peanut planting level of peanut growers. | Ruhong FU Jihua WU | 2019 | Agricultural Biotechnology2019，8，2： | 0 |
| 17 | High-yield and High-efficiency Standardized Cultivation Technique for Wheat Interplanting with Peanuts显示文摘Through wheat interplanting with peanuts,it is able to make full use of the light and heat resources in the growing season to achieve high yield of both wheat and peanuts in two seasons of one year.Wheat interplanting with peanuts is one of the main cultivation methods of wheat and oil crop double cropping system,and has very broad development prospects in the Huang-Huai-Hai region.This paper summarized high-yield the high-efficiency and standardized cultivation techniques for wheat interplanting with peanuts,including crop rotation,proper deep ploughing,balanced fertilization,rational matching of fine varieties,interplanting at suitable time,sowing according to certain specification,and enhancing the field management.This can be used as reference for high-yield and high-efficiency standardized cultivation technique for wheat interplanting with peanuts. | Yaping ZHENG Zulin ZHENG Lili WANG Chunxiao WANG Zeqi LU Wei JIANG Hongwei ZANG Hao FENG Yongmei ZHENG Caibin WANG | 2019 | Asian Agricultural Research2019，11，11： | 0 |
| 18 | Cultivation Techniques for High-quality and High-yield Spring Peanut in East Henan Province显示文摘Groundnut,also known as peanut,has high economic and medicinal value. A member of the legume crops,it is rich in various nutrients and is one of the main oil crops for processing high-quality edible oil. Compared with other cash crops,planting peanuts can bring greater economic benefits to farmers. In this paper,we summarized techniques of cultivating spring peanut in open fields for years,and explored the problems and difficulties in the cultivation management process,in order to provide technical guidance for the farmers to carry out high-yield spring peanut production. | Ruhong FU Jihua WU | 2019 | Agricultural Biotechnology2019，8，1： | 0 |
| 19 | A Novel High Volume Manufacturing Method for Defect-free and High-yield SiN Micro-sieve Membranes显示文摘Micro-sieves have been widely used in medical treatment,quarantine,environment,agriculture,pharmacy and food processing.However,the manufacturing and yield improvement have been difficult due to multiple challenges,such as the sieve unit release defect,cracking,and KOH corrosion.In this paper,we report process details and discuss technical difficulties which are usually the root-causes for process failures,and demonstrate a reliable and high yield production of SiNx micro-sieves processed with our novel method,which is also compatible with high volume manufacturing. | Yansong Liu Chao Zhao Lisong Dong Rui Chen Yayi Wei | 2018 | Journal of Microelectronic Manufacturing2018，1，1： | 0 |
| 20 | Analysis on High-yield Experience and Protective Measures of Wheat and Corn: A Case Study of Jieshou City in Anhui Province显示文摘This paper summarized the experience in high yield of wheat and corn in Jieshou City and made a further study on the supporting measures for the high yield of wheat and corn on this basis. | Languang XIE | 2015 | Asian Agricultural Research2015，7，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员