|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Continuous applications of biochar to rice: Effects on grain yield and yield attributes显示文摘Biochar is considered as a beneficial soil amendment for crop production. However, limited information is available on the effects of continuous applications of biochar on rice. In this study, a fixed field experiment was conducted in the early and late rice-growing seasons from 2015 to 2017. Grain yield and yield attributes with a widely-grown rice cultivar Zhongzao 39 were compared, with and without applications of biochar in each season. The results showed that grain yield initially decreased with biochar applications in the first three seasons due to decreases in grain weight and harvest index. Although there were further relative decreases in grain weight and harvest index for rice that was supplied with biochar in the fourth to sixth seasons, grain yield was increased(by 4–10%) because of increases in sink size(spikelets per m2) and total biomass. The increased sink size in rice whose soil had been supplied with biochar in the fourth to sixth seasons was achieved by increasing panicle size(spikelets per panicle) or number of panicles, or both. Our study suggests that the positive effects of biochar application on rice yield and yield attributes depend on the duration of biochar application. Further investigations are needed to determine what are the soil and physiological processes for producing yield responses associated with ongoing applications of biochar. Also, it should be evaluated the performance of biochar application combined with other management practices, especially those can increase the grain weight and harvest index in rice production. | HUANG Min FAN Long JIANG Li-geng YANG Shu-ying ZOU Ying-bin Norman Uphoff | 2019 | Journal of Integrative Agriculture2019，18，3： | 9 |
| 2 | 水稻强化栽培(SRI)对农业的增产增效和对环境的改善作用显示文摘水稻强化栽培是一种新型的栽培技术,具有明显增加产量和减少投入的作用,其推广应用对传统的农业生产产生了重要的影响。 | 林兴军 林贤青 Norman Uphoff | 2006 | 中国稻米2006，12，1： | 7 |
| 3 | Improving the phenotypic expression of rice genotypes:Rethinking “intensification” for production systems and selection practices for rice breeding显示文摘Intensification in rice crop production is generally understood as requiring increased use of material inputs: water, inorganic fertilizers, and agrochemicals. However, this is not the only kind of intensification available. More productive crop phenotypes, with traits such as more resistance to biotic and abiotic stresses and shorter crop cycles, are possible through modifications in the management of rice plants, soil, water, and nutrients, reducing rather than increasing material inputs. Greater factor productivity can be achieved through the application of new knowledge and more skill, and(initially) more labor, as seen from the System of Rice Intensification(SRI), whose practices are used in various combinations by as many as 10 million farmers on about 4 million hectares in over 50 countries. The highest yields achieved with these management methods have come from hybrids and improved rice varieties, confirming the importance of making genetic improvements. However,unimproved varieties are also responsive to these changes, which induce better growth and functioning of rice root systems and more abundance, diversity, and activity of beneficial soil organisms. Some of these organisms as symbiotic endophytes can affect and enhance the expression of rice plants' genetic potential as well as their phenotypic resilience to multiple stresses, including those of climate change. SRI experience and data suggest that decades of plant breeding have been selecting for the best crop genetic endowments under suboptimal growing conditions, with crowding of plants that impedes their photosynthesis and growth, flooding of rice paddies that causes roots to degenerate and forgoes benefits derived from aerobic soil organisms, and overuse of agrochemicals that adversely affect these organisms as well as soil and human health. This review paper reports evidence from research in India and Indonesia that changes in crop and water management can improve the expression of rice plants' genetic potential, thereby creating more productive and robustphenotypes from given rice genotypes. Data indicate that increased plant density does not necessarily enhance crop yield potential, as classical breeding methods suggest. Developing cultivars that can achieve their higher productivity under a wide range of plant densities—breeding for density-neutral cultivars using alternative selection strategies—will enable more effective exploitation of available crop growth resources. Density-neutral cultivars that achieve high productivity under ample environmental growth resources can also achieve optimal productivity under limited resources, where lower densities can avert crop failure due to overcrowding. This will become more important to the extent that climatic and other factors become more adverse to crop production. Focusing more on which management practices can evoke the most productive and robust phenotypes from given genotypes is important for rice breeding and improvement programs since it is phenotypes that feed our human populations. | Norman Uphoff Vasilia Fasoula Anas Iswandi Amir Kassam Amod K.Thakur | 2015 | The Crop Journal2015，3，3： | 3 |
| 4 | Demonstrated Benefits from Social Capital: The Productivity of Farmer Organizations in Gal Oya, Sri Lanka显示文摘 | Norman Uphoff | 2000 | World Development2000，，11： | 2 |
| 5 | A review of agricultural research issues raised by the system of rice intensifica- tion (SRI) from Madagascar: opportunities for improving farming systems for resource-poor farmers 显示文摘 | Stoop W A Uphoff N Kassam A | 2002 | Agricul- tural Systems2002，71，3： | 1 |
| 6 | Demonstrated benefits from social capital:the productivity of farmer organizations in Gal Oya, Sfi Lanka显示文摘 | Uphoff N Wijayaratna CM | 2000 | World Development2000，28，11： | 1 |
| 7 | Comparative PCR analysis for detection of mycoplasma infection in continuous cell lines 显示文摘 | Uphoff C C Drexler H G | 2002 | In Vitro Cell Dev Biol Anita2002，38，： | 1 |
| 8 | Effective treatment of mycoplasma contamination in cell lines with enrofloxacin ( Baytril )显示文摘 | Fleckenstein E Uphoff CC | 1994 | Leukemia1994，8，： | 1 |
| 9 | The ude of rapid tests of individual diagnosis of RSV Dtsch Med显示文摘 | Uphoff H Metzget C | 2002 | Wochenschr2002，12，2： | 1 |
| 10 | A simple method using β-globin polymerase chain reaction for the species identification of animal cell lines-a progress report 显示文摘 | Steube KG Meyer C Uphoff CC | 2003 | In vitro Cell Dev Biol Anita2003，39，10： | 1 |
| 11 | Specificity and sen- sitivity of polymerase chain reaction (PCR) in comparison with other methods for the detection of mycoplasma contamination in cell fines 显示文摘 | Hopert A Uphoff C C Wirth M | 1993 | Journal of Immunological Methods1993，，1： | 1 |
| 12 | Treatment of my- coplasma contamination in cell cultures with Plasmoein 显示文摘 | Uphoff CC Denkmann SA Drexler HG | 2012 | J Biomed Bioteehnol2012，2012，26： | 1 |
| 13 | Detection of mycoplasma in leu- kemia-lymphoma cell lines using polymerase chain reaction 显示文摘 | Uphoff CC Drexler HG | 2002 | Leukemia2002，16，2： | 1 |
| 14 | Development of generic quality indicators for patient-centered cancer care by using a RAND modified Delphimethod显示文摘 | Uphoff EP Wennekes L Punt C J | 2012 | Cancer Nurs2012，35，1： | 1 |
| 15 | Comparative PCR analysis for detection of mycoplasma infections in continuous cell lines 显示文摘 | Uphoff CC Drexler HG | 2002 | In Vitro Cell Dev Biol Anim2002，38，2： | 1 |
| 16 | The microbial diversity in picoplankton enrichment cultures: a molecular screening of marine isolates 显示文摘 | Uphoff H U Felske A Fehr W | 2001 | FEMS Microbiology Ecology2001，35，3： | 1 |
| 17 | Detection of P53 gene mutations by single strand conformational polymorphism (SSCP) in human acute myeloid leukemia-derived cell lines显示文摘 | Fleckenstein D S Uphoff C C Drexler H G | 2002 | Leuk Res2002，26，2： | 1 |
| 18 | A review of agricultural research issues raised by the system of rice intensification (SKI) from Mada- gascar: opportunities for improving farming systems for reseuree-poor farmers显示文摘 | Stoop W A Uphoff N Kessam A | 2002 | Agricultural Systems2002，71，3： | 1 |
| 19 | Modulation of gene expression in the acute promyelocytic leukemia cell line NB4显示文摘 | Hu ZB Ma W Uphoff CC | 1993 | Leukemia1993，7，11： | 1 |
| 20 | Demonstrated Benefits from Social Capital:The Productivity of Farmer Organizations in Gal Oya, Sri Lanka显示文摘 | UPHOFF N WIJAYARATNA C M | 2000 | World Development2000，28，11： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员