Document Type : Research Paper
Author
p.o.box 89165-517 Yazd,Iran mollasadra, shahidan ashraf ave. safaeia, Yazd,Iran
Abstract
Abstract
Background and Objectives
In arid and desert regions, due to the irregular spatial and temporal distribution of precipitation, a valuable volume of seasonal floods has become unavailable in the form of evaporation, and on the other hand, the lack of suitable land and irrigation water has created great limitations for the production of livestock fodder. Therefore, the use of creative methods adapted to the natural conditions of the region in utilizing the potential of dry muddy floods of dry rivers in arid regions is essential to solve this problem.
Methodology
In this study, in the Miankouh Flood spreading Station, with the aim of evaluating the effect of flood irrigation and sediments accompanying floods on the production of Alhagi camelorum forage, after providing the technical conditions for the establishment of this plant in terms of uniform flood distribution and no waterlogging, Alhagi camelorum seeds were established and grown along with muddy floods behind the embankments. After establishment The stability of the thorn bushes, the percentage of canopy cover, density and forage production of the thorn bushes were measured using 1x1 square meter plots in 30 plots in three transects parallel to the embankment and 10 plots in the thorn fields on the edge of the project without flood irrigation conditions as a control in three years (1401, 1402 and 1403) were measured and statistically analyzed. Also, samples of the produced forage under flood irrigation and control conditions were prepared according to the standard and analyzed in the laboratory to evaluate the qualitative components. The economic feasibility of the produced forage was also evaluated and analyzed in comparison with common forages using the engineering economics method.
Results
Comparison of the survey results showed that the production rate and percentage of canopy cover were significant at the 1% level and the density rate at the 5% level. The forage production rate in the first year of establishment was 1.83 tons per hectare and in the third year after the complete establishment of the bushes and appropriate flooding of the area was 39.7 tons per hectare of dry forage was recorded. Also, comparing the results of the analysis of the quality of the forage produced by the flood irrigation method and the control, a significant increase in crude protein of 14.33% was obtained, which is comparable to common forages such as alfalfa. The benefit-cost ratio in this project has been calculated to be 1/4, which means that for every 1 Rial invested in Alhagi camelorum floodplain agriculture, 1.4 Rials of benefit is generated.
Conclusion
As a result, by utilizing the potential of seasonal muddy floods, most of which are usually wasted due to evaporation, and utilizing desert sandy land, it is possible to produce economic fodder with appropriate quantitative and qualitative yield from the drought-resistant species of Alhagi camelorum under flood irrigation conditions in arid and desert areas, similar to the project area.
Keywords
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