جستجوی مقالات مرتبط با کلیدواژه "زعفران" در نشریات گروه "آبخیزداری، بیابان، محیط زیست، مرتع"

Saffron (Crocus sativus L) is an expensive and highly valuable plant recognized globally for its many medicinal properties and low water demand. Hence, the development of saffron farms in semiarid regions has received much attention as it increases water use efficiency (WUE) in such water-deficient areas. Considering the different factors involved in saffron growth and yield, the geographical information system (GIS) is the best and most cost-effective method to identify areas potentially favorable to saffron cultivation. The current study aimed at zoning the land area favorable to saffron cultivation in Kerman Province was conducted over the period 2017-2019. The required daily data were collected from 13 synoptic stations recorded during the years 1998 to 2016, which were subjected to the homogeneity test before the relevant GIS information layers including altitude, slope, frost, rainfall, absolute maximum and minimum temperatures, and probability of temperatures below 5º Celsius in November were prepared. Subsequently, the relevant variograms were drawn. Also, the slope map was extracted using the digital elevation model. Finally, weights were assigned to the above layers using the Analytical Hierarchy Process (AHP) technique, and the final zoning map was prepared in ArcMap. The map thus prepared revealed that the southern and eastern stretches of the province were not suitable for saffron cultivation while the more favorable areas were located at the foothills in Baft, Bardsir, Zarand, and Shahrbabak towns. Moreover, Kahnuj, Manojan, southern parts of Jiroft, eastern stretches of Bam, and southern stretches of Baft, accounting for around 59% of the total provincial land area, were recognized as unfavorable to saffron cultivation. The remaining lands of the total provincial area were classified as follows: 15% relatively suitable, 16% suitable, and about 10% highly suitable for saffron cultivation.

Saffron (Crocus sativus L.) is the most expensive spice and nutrient balance availability plays important role in the flower induction and its corms growth improvement. Besides consumption of organic fertilizers in reducing environmental contamination and soil biodiversity conservation, due to gradual release of nutrients play a positive role in improving the growth characteristics and yield of this plant. Considering the importance of soil fertility management effects on flower yield of this valuable plant, numerous studies have been done on fertilizer and nutritional issues. In this article we have tried to look at the fertilizer and nutrition researches of saffron in the past and present, a comprehensive study done on short-term and long-term effects of different levels of organic fertilizers and manure on yield and corms growth of saffron. What this study, we have tried to achieve the conclusion of appropriate fertilizer recommendations of new and conventional types of fertilizer sources based on researches carried out in order to enforce sustainable management of biological and economic resources in Iran. The fact that in saffron cultivation areas, particularly in Iran usually soil moisture storage content is relatively low and water stress occurs, via manure consumption can be increased soil moisture storage content and inputs consumption efficiency. Consequntly, through producing healthy and organic saffron Iran’s share in the global market will be increased.