A.M J; Hormoz Soltani; seyyed moinoddin Rezvani; Ali Ghadami Firouzabadi
Abstract
Innovative irrigation practices can enhance water consumption efficiency and economic returns. In this study, the effect of two irrigation methods and four different planting patterns on the yield and economic returns of potato crop were evaluated. For this purpose, an experiment was conducted ...
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Innovative irrigation practices can enhance water consumption efficiency and economic returns. In this study, the effect of two irrigation methods and four different planting patterns on the yield and economic returns of potato crop were evaluated. For this purpose, an experiment was conducted in Ekbatana Agricultural Research Station in Hamedan for three years (2013-15), using a split plot randomized complete block design. The treatments included two main factors, sprinkler and drip irrigation, and four planting pattern in subplots. Economic analysis of the treatments was conducted by using Benefit-Cost Ratio (BCR), Internal Rate of Return (IRR), and Equivalent Uniform Annual Net Profit (EUANP) criteria. The results showed that the conventional planting in drip irrigation method was economically the superior treatment. For superior treatment, the calculated BCR was 1.48, with IRR of 287.49% and EUANP of 79.1 million Rials/ha. The impact of planting pattern in sprinkler irrigation method on economic return of the treatments was remarkable, such that the IRR and EUANP of all sprinkler treatments were more than double the conventional planting. The planting pattern with 60 cm distance in sprinkler irrigation method had the highest economic return.
y f; h r
Abstract
The present study was done for economic evaluation of pressurized irrigation systems in strawberry fields of Babolsar Township during a 4-year period from 2011 to 2015. To do this, at first, 282 farms (170 traditional and 112 pressurized irrigation systems) were selected using proportional stratified ...
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The present study was done for economic evaluation of pressurized irrigation systems in strawberry fields of Babolsar Township during a 4-year period from 2011 to 2015. To do this, at first, 282 farms (170 traditional and 112 pressurized irrigation systems) were selected using proportional stratified sampling. The data related to costs and revenues of the sample farms was gathered over four years with cooperation of Regional Agricultural Office and farmers. Then, collected data was analyzed by Net Present Value (NPV), Benefit- Cost Ratio (BCR) and Internal Return Rate (IRR) indices. The results showed that the sample farms produced strawberry economically under both traditional and pressurized systems. However, NPV and IRR were greater in pressurized irrigation system than the traditional one. Based on the results, IRR was calculated to be 48 percent in pressurized system while it was 38 percent in traditional one. In addition, BCR was calculated to be 1.48 and 1.37 in pressurized and traditional systems, respectively. So, considering national and regional drought crisis, development of pressurized irrigation systems is strongly recommended in the country and the region in order to conserve water resources.
m sh; Hedayatollah Rahimi
Abstract
Tomato is one of the major agricultural products in Fars Province. Previous studies show that the tomato farms under current irrigation systems lose a large volume of water with low water productivity. In the present study, the irrigation requirement and the influence of different irrigation regimes ...
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Tomato is one of the major agricultural products in Fars Province. Previous studies show that the tomato farms under current irrigation systems lose a large volume of water with low water productivity. In the present study, the irrigation requirement and the influence of different irrigation regimes on the yield and water productivity of three cultivars of tomato was studied. The farm under study was located in Marvdasht plain, with a heavy soil texture. The irrigation water was applied based on 60%, 80%, 100%, and 120 percent of Penman Montieth water requirement method, under drip irrigation system. Another treatment was considered and irrigated by the farmer management. Benefit-cost ratio and benefit-cost difference was calculated for economic analysis. Results show that the obtained yield increased with irrigation water while water productivity decreased. The irrigation volumes of water used for the treatments were about 3900 to 7800 cubic meters per hectare. However, only the differences between the treatments 60% and 120% were statistically significant. Economic evaluations showed that the tomato production was not economical with tomato price equal to 2500 Rials, while the water price varies from zero to 6000 Rials. In this situation, the benefit-cost ratios varied from 0.78 to 0.68, respectively. Increase in price of tomato could improve the benefit-cost ratio.