ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    facet.materialart.
    Unbekannt
    Towards an early warning system for wheat blast: epidemiological basis and model development (2023)
    Burleigh Dodds Science Publishing | Burleigh Dodds Science Publishing
    Details
    Publikationsdatum: 2024-04-14
    Beschreibung: Wheat blast is caused by the fungus Pyricularia oryzae Triticum pathotype (PoT). Significantly damaging wheat blast epidemics are sporadic and limited to tropical wheat growing areas in South America. Unexpectedly, wheat blast was reported in Bangladesh and Zambia in 2016 and 2020, respectively. The urgent need to deal with a poorly studied disease has mobilized the scientific community. Original research and reviews have been published in various venues. Nevertheless, disease control is still a difficult task. Much less research has, however, focused on crucially important and complex ecological interactions at the field, landscape, or regional levels. This chapter reviews aspects of the epidemiology of wheat blast, mainly those related to inoculum and its role for the epidemics. It then describes the models that have been developed by the authors as well as the decision support system. Examples of the implementation of a warning system in Bangladesh and Brazil are also illustrated.
    Schlagwort(e): Magnaporthe oryzae ; disease modelling ; disease forecast ; wheat blast ; pathogens ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TV Agriculture and farming::TVK Agronomy and crop production ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TV Agriculture and farming::TVF Sustainable agriculture ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TV Agriculture and farming::TVP Pest control / plant diseases
    Sprache: Englisch
    Format: image/jpeg
    Format: image/jpeg
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    E-BOOK
  • 2
    facet.materialart.
    Unbekannt
    Achieving the sustainable development goals in agriculture: The crucial role of nitrogen in cereal-based systems (2020)
    In:  Advances in Agronomy
    Details
    Publikationsdatum: 2022-03-21
    Beschreibung: The crucial link between agricultural growth and the Sustainable Development Goals (SDGs) set by the United Nations Development Programme is established through efficient use of nitrogen in the cereal production systems. Nitrogen, mostly in its reactive form as fertilizer or synthetic N, governs the food production, and reconciles the productivity with economic and environmental considerations. However, N flows in the production system involves a large N leaking to the environment resulting in abysmally low nitrogen use efficiencies and environmental adversity. Agricultural system with sub-optimal N application is characterized with low crop productivity, spiraling into the vicious cycle of poverty, malnutrition and poor economy, a case most common in the sub-Saharan Africa. These essentially relate to SDG 1 (no-poverty), 2 (zero-hunger), 3 (good health and well-being), 8 (decent work and economic growth) and 15 (life on land). Excess or imbalanced fertilizer N in most of China and parts of India led to serious environmental hazards, degradation of land and economic loss. Balancing the amount of N input in these regions will contribute in achieving the SDG 13 (climate action). Meeting some of the SDGs (5, gender equality; 6, clean water and sanitation; 10: reduced inequalities; etc.) requires optimum N application, which will also ensure “responsible consumption and production” (SDG 12). The quest for an appropriate N management needs accounting for the N surplus in a production system, and evolving strategies for increasing the nitrogen use efficiency. Much effort has been made to this effect with varying success. Cutting-edge technological options are although available on the horizon, the success lies in improved awareness among the policy makers, stakeholders and farmers, and better research to quantify the linkage between N management and the SDGs, taking collectively.
    Materialart: info:eu-repo/semantics/bookPart
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    CITATION PIK
  • 3
    facet.materialart.
    Unbekannt
    Net Present Value Analysis to Assess the Economic Consequences of Changing Farming Systems in the Upper Catchment of the River Njoro Watershed. (2015)
    Kenya Agricultural Research Institute | Nairobi, Kenya
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: A spreadsheet model applying net present value analysis has been developed to estimate long-term economic returns to labor and land of alternative small-holder cropping systems in the upper River Njoro watershed. Production expenditures and income over a 15 year time horizon associated with current cropping practices of a typical farm household cultivating 2.6 hectares of maize-bean intercrop, pyrethrum, and potato mix were characterized based on field work conducted in 2003. Results indicate annual net present value returns to cropped land under the current system average Ksh 3,488/acre ($46/acre) in 2003 values and net farm income to the household (net returns to labor) average Ksh 25,646 (US $342) per year. Net returns are particularly sensitive to maize yield and price, cost of seeds, and discount rate. As part of efforts to identify improved environmental land management practices in the River Njoro watershed, the model can be adapted to examine the economic viability of adopting alternative agronomic practices and cropping systems, and evaluate changes in farm income and any need for economic incentives. Data from farmer field trials, research experiments, and other settings provide sources for characterizing proposed practices such as agroforestry, riparian tree planting, and soil conservation in the model.
    Beschreibung: Published
    Schlagwort(e): Socioeconomic aspects ; Catchment area ; Watersheds ; Economic analysis
    Repository-Name: AquaDocs
    Materialart: Conference Material , Not Known
    Format: 9pp.
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...