Environmental and Economic Benefits of Saline-Sodic Soil Reclamation Using Low-quality Water and Soil Amendments in Conjunction with a Rice–Wheat Cropping System
A combination of appropriate crop rotation(s) and management interventions has the potential to transform saline-sodic soil and water resources from an environmental burden into an economic asset. We carried out 2-year field studies in the Indus...
Optimizing supplemental irrigation: Tradeoffs between profitability and sustainability
Water production functions are used to model yield response to various levels of supplemental irrigation (SI), to assess water productivity coefficients, and to identify optimum irrigation under various input–output price scenarios. The SI...
Pb is one of the most widespread and metal pollutants in soil. It is generally concentrated in surface layers with only a minor portion of the total metal found in soil solution. Phytoextraction has been proposed as an inexpensive, sustainable...
Detection of Wheat Stem Rust (Puccinia graminis f. sp. tritici) Race TTKSK (Ug99) in Iran
In 2007, new reports of stem rust caused by Puccinia graminis Pers. f. sp. tritici Eriks. in Lorestan and Hamadan provinces of Iran were considered unusual because stem rust had not been recorded previously in the Hamadan area where winter habit...
Yield Gap Analysis: Modelling of Achievable Yields at Farm Level
The world population is expected to reach about 8 billion by 2025 (United Nations, 2006), before it stabilizes at about 10-11 billion towards the end of the 21st century. Most of this increase in population is expected to occur in less-developed...
Modelling surface runoff and water productivity in small dryland watersheds with water-harvesting interventions, an application from Jordan
Vast areas of the rangelands (badia) of West Asia and North Africa are severely degraded due to over-grazing, cutting of shrubs and ploughing. Because of the scarce vegetation cover and the often dense soil surface crust, a large part of the...
This issue of Caravan describes some of ICARDA's work on climate change. It contains overviews of the key issues, and articles describing research in specific areas. We examine, for example, how genetic resources – landrace varieties, wild...
Ties that Bind: Jordan and ICARDA. 30 years of partnership for sustainable agriculture
Collaboration between ICARDA and Jordan began when ICARDA was established in 1977. A bilateral agreement was signed on 27 October that year. The first Memorandum of Understanding (MoU) was signed with the Ministry of Agriculture, identifying...
SuperSAGE: the drought stress-responsive transcriptome of chickpea roots
Background Drought is the major constraint to increase yield in chickpea (Cicer arietinum). Improving drought tolerance is therefore of outmost importance for breeding. However, the complexity of the trait allowed only marginal progress. A...
Nitrate‐n test as a guide to N fertilization of Weat in the mediterranean region
Forty factorial experiments with 4 levels of N (0, 40, 80, and 120 kg N/ha and 4 levels of P (0, 8.8, 17.5, and 35 kg P/ha) with two replicates were conducted in farmers’ fields during two consecutive seasons in 1987 and 1988. The sites chosen...
