標(biāo)題: Titlebook: Opportunities, use, and transfer of systems research methods in agriculture to developing countries; Proceedings of an in Peter Goldsworthy [打印本頁] 作者: CYNIC 時間: 2025-3-21 19:02
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書目名稱Opportunities, use, and transfer of systems research methods in agriculture to developing countries影響因子(影響力)學(xué)科排名
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書目名稱Opportunities, use, and transfer of systems research methods in agriculture to developing countries讀者反饋
書目名稱Opportunities, use, and transfer of systems research methods in agriculture to developing countries讀者反饋學(xué)科排名
作者: Feedback 時間: 2025-3-21 22:27 作者: 寬宏大量 時間: 2025-3-22 00:53 作者: 間接 時間: 2025-3-22 07:36
The development of strategies for improved agricultural systems and land-use managementey might be stimulated is the central task of agricultural systems research. But past experience in systems research in non-agricultural fields, where systems research methods developed, shows that a scientific approach to management has had limited effect on what managers actually do. In agricultur作者: 青少年 時間: 2025-3-22 11:22
Needs and priorities of NARS for the management of natural resources: Bangladeshopment. The density of population is already one of the highest in the world (less than 0.1 ha per person) and the population is growing fast. During the last two decades agricultural production has increased at an annual rate of 1.8 percent. The area under non-cereal crops has declined and the prod作者: Lipohypertrophy 時間: 2025-3-22 13:00
Bhutan’s research needs and priorities for the management of natural resources: a small country’s pevided strong policy leadership and support for the integration of a natural resource management (NRM) perspective into the agricultural research agenda. Research has been reorganized to reflect more closely the interdependencies between crops, livestock, and trees found in traditional land-use syste作者: ascetic 時間: 2025-3-22 17:55
The institutional and organizational implications of integrating natural resource management and prol resource management and environmental concerns into their agricultural research agendas. Integrating these concerns adds significantly to the responsibilities of NARS at a time when there is already a heavy demand on their shrinking research resources. NARS face the difficult task of maintaining a作者: 偶然 時間: 2025-3-22 23:43
Data requirements for agricultural systems research and applicationsch is needed as inputs or as constraints for simulation models and as validation of simulations to establish the credibility of the systems approach. If agricultural and land-management simulation models are to be useful for solving problems, they need to include in the detail of the simulation repr作者: 瑪瑙 時間: 2025-3-23 04:10 作者: 起來了 時間: 2025-3-23 05:54 作者: critic 時間: 2025-3-23 13:40 作者: 陳腐思想 時間: 2025-3-23 17:33 作者: glamor 時間: 2025-3-23 19:32
https://doi.org/10.1007/978-94-011-0764-8crop improvement; environmental science; forestry; growth; rice; simulation作者: negligence 時間: 2025-3-24 01:09 作者: Feckless 時間: 2025-3-24 05:20
Sustainable growth in agricultural production: the links between production, resources, and researchThis paper outlines some conceptual issues concerning the sustainability of agricultural production, and surveys the emerging natural resource management issues. It examines the implications for agricultural research, which is probably the most critical factor in determining whether sustainable growth in agricultural production will be maintained.作者: constitute 時間: 2025-3-24 10:23 作者: ELATE 時間: 2025-3-24 10:40
Opportunities, use, and transfer of systems research methods in agriculture to developing countries978-94-011-0764-8作者: Ambiguous 時間: 2025-3-24 15:08
A case for setting common objectives for natural resource managementl resource is described as a necessary condition for sustainability. The paper concludes that productivity and sustainability are by definition essential components of a common objective aimed at efficient use of natural resources. It is also suggested that such an objective must provide for the pro作者: 開花期女 時間: 2025-3-24 20:05
The development of strategies for improved agricultural systems and land-use managements. An approach which uses improved agricultural production simulation models and economic decision models makes this possible. This approach is demonstrated using experiences from work in semi-arid Kenya where investment in soil enrichment in fertility-depleted croplands is deterred by the unreliabi作者: 百靈鳥 時間: 2025-3-25 01:43 作者: 無可爭辯 時間: 2025-3-25 04:55
Data requirements for agricultural systems research and applications on agrotechnology information. However, some elements of the required daily weather data, especially global radiation, are not always available. In such instances, substitutes such as hours of sunshine or a weather generator can be used..Data that describe the biophysical characteristics of a syste作者: 諷刺滑稽戲劇 時間: 2025-3-25 08:19
Needs and priorities for the management of natural resources: a large country’s perspectivell as microlevel applications such as a “crop cultivation model” and growth simulation models, is either being developed or is already in use. From the viewpoint of resource management, all this work has played an important role in reallocating resources to gain the optimal economic, social, and env作者: 預(yù)定 時間: 2025-3-25 13:35
Conference proceedings 1994ored, and new objectives and targets need to be set. This book, which contains the papers presented at the workshop, assesses the state of the art of systems approaches in agricultural research, resource management, and rural planning. It also gives an impression of the evolution of this interdiscip作者: BROTH 時間: 2025-3-25 15:54 作者: 內(nèi)向者 時間: 2025-3-25 21:39
R. L. McCown,P. G. Cox,B. A. Keating,G. L. Hammer,P. S. Carberry,M. E. Probert,D. M. Freebairn作者: LATHE 時間: 2025-3-26 01:53
Conference proceedings 1994ms approaches and modelling for agricultural development. Sponsored by the Dutch Ministry for Development Cooperation, the workshop was attended by participants from 12 national agricultural research systems (NARS), nine international agricul- tural research centers (lARCs), and five advanced resear作者: Juvenile 時間: 2025-3-26 07:40 作者: dry-eye 時間: 2025-3-26 11:03
Issues of development of an international soils and terrain databaseresources to the dangers of inappropriate management, but also, at the same time, the capability of national soil/land resource institutions of delivering reliable, up-to-date information on land resources in an accessible format to a wide audience.作者: 性上癮 時間: 2025-3-26 13:20 作者: 策略 時間: 2025-3-26 18:57
Supporting agricultural research policy and priority decisions: an economic-ecologic systems approacge degree of spatial variability. It will also be possible to make more effective use of conventional biophysical models (e.g., crop growth, land evaluation, and soil-erosion models) to estimate the likely consequences of research.作者: Concerto 時間: 2025-3-27 00:52 作者: 投射 時間: 2025-3-27 05:02
Multiple-goal planning as a tool to analyze sustainable agricultural production options in Mali appropriate price-policy instruments. The discussion further focusses on the trade off between the various goals as well as the influence of economic parameters on the possibilities for ecologically and economically sustainable agricultural development. Finally, the paper discusses the merits and limitations of the approach.作者: IRATE 時間: 2025-3-27 06:05
The role of systems analysis as an instrument in policy making and resource managementso used in quantitative land evaluation, and may structure resource management research at high aggregation levels. Other models may help policy makers in their strategic and tactical decision making at various levels of integration and aggregation.作者: Brain-Imaging 時間: 2025-3-27 12:41
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