Agriculture
Mahdieh Rashid Sorkhabadi; Ali Shahidi; Abbas Khashei Siuki
Abstract
The city of Torbat Heydarieh located in the central Khorasan is the largest producer of saffron in the world. According to the influence of various environmental factors on the growth and yield of saffron, the process of assessing land ratio for its cultivation requires the use of various detailed spatial ...
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The city of Torbat Heydarieh located in the central Khorasan is the largest producer of saffron in the world. According to the influence of various environmental factors on the growth and yield of saffron, the process of assessing land ratio for its cultivation requires the use of various detailed spatial and descriptive pieces of information. In this study, first the conditions of cultivating saffron have been studied in detail and suitable regions for planting saffron have been identified using maps of elevation, slope, soil characteristics, water and some climatic factors influencing the cultivation of saffron including effective threshold temperature, rainfall and sunshine hours. For this purpose, Fuzzy Analytical Hierarchy Process (FAHP) method was applied and modeling and spatial analysis were carried out using Arc GIS software environment based on the lands of the city of Torbat Heydarieh which were evaluated for their suitability for cultivation of saffron. It is worth noting that the final map showed that 43 percent of the central parts of Torbat Heydarieh have the highest potential for saffron cultivation. To evaluate the results and ensure the accuracy of the final map data, plant functions and crop qualities were compared with obtained data from final maps and the accuracy of the results was confirmed that shows the effectiveness of Fuzzy Analytical Hierarchy Process (FAHP) method in assessing the potential of lands for saffron cultivation.
Agriculture
Moein Tosan; Amin Alizadeh; Hosein Ansari; Parviz Rezvani Moghaddam
Abstract
Saffron is cultivated in most part of Iran, because of low water requirement and well adaptation to diverse environmental condition. In recent years, for many reasons such as low water requirement, saffron cultivation areas has been increased especially in Khorasan Razavi province. Temperature is one ...
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Saffron is cultivated in most part of Iran, because of low water requirement and well adaptation to diverse environmental condition. In recent years, for many reasons such as low water requirement, saffron cultivation areas has been increased especially in Khorasan Razavi province. Temperature is one of the most important factors in saffron flowering phenomena. The aim of this research was to evaluate the response of saffron to temperature in Khorasan Razavi province counties (Torbat-e-Heydarieh, Gonabad, Nishabour, Sabzevar and Ghoochan). Climatic data (monthly minimum, average, maximum temperatures and diurnal temperature range) and saffron yield data were collected for past 20 years period. The stepwise regression methods were used to remove extra parameters and only keep the most important ones. By using these equations and ArcGIS software zoning, Spline method was find the best for saffron crop zoning. The results of linear regression in Gonabad showed that minimum, maximum and average temperature and also diurnal temperature range in March and April months had the greatest impact on saffron yield. For each of the four indices (the minimum, maximum and average temperature and also diurnal temperature range) the best area for saffron cultivation was the southern part of the province (particularly Gonabad); so by increasing distance from this area to north areas (such as Kashmar, Torbat-e-Heydarieh, Sabzevar, Nishabour, Mashhad and finally Ghoochan) saffron yield reduced by 30 to 50 percent. Therefore, the northern areas of the province had relatively low saffron yield. According to result of this research, saffron yield in Khorasan Razavi province was significantly influenced by temperature parameters. Flowering which basically is the most important stage of plant growth, is directly setting up with temperature.
Agriculture
S. A. Mohammad Alavi Zadeh; Ali Monazzam Esmaeel Pour; Mahmoud Hossein Zadeh Kermani
Abstract
Saffron as the most expensive agriculture and medicinal product of world, is a plant in Consider to aridity resistant has interesting role in social and economical status of arid and semi arid of southern and Razavi Khorasan provinces. The aim of this paper, is determining the suitable area in Saffron ...
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Saffron as the most expensive agriculture and medicinal product of world, is a plant in Consider to aridity resistant has interesting role in social and economical status of arid and semi arid of southern and Razavi Khorasan provinces. The aim of this paper, is determining the suitable area in Saffron cultivation with regards to effective factors. The climatic elements data were obtain from Khorasan Razavi Meteorological Organization for 1989-2012 periods. The topographic data including; relief, slope, aspect and TIN layers extracts from 1: 50000 topographic maps of the region. The land use and vegetation land cover maps were prepared using 1: 50000 maps of National soil and water Research Institute. The spatial analysis facilities of GIS were used for numerical calculation and drawing the requiring maps. A spatial geo database from region was established then spatial and description data entered on this database. Using by AHP software each layer weighted by its importance. Finally, by overlaying analysis in ArcGIS, cultivated area were classified by its capabilities .The results showed that Central and Southern Kashmar plain are the best capabilities for Saffron cultivation that in present statues, these lands specified to dry farming, irrigated farming, semi condense and condense rangelands.
