Economical evaluation of single irrigation and the water irrigation cost determination of rainfed wheat in Honam, Lorestan province

Subject Areas :

Hormoz Asadi ¹ (PhD student of agricultural economics University of Sistan and Baluchestan Zahedan, Iran E-mail: [e-mail] (corresponding author))
Gholamreza Zamanian ² (Assistant Professor in Economics University of Sistan and Baluchestan Zahedan, Iran.)
Ali Reza Tavakoli ³ (Assistant Professor in irrigation Agricultural Engineering Research Department Semnan Agricultural and Natural Resources Research Center Shahrood, Iran)

Received: 2015-02-01 Accepted : 2015-07-15 Published : 2015-08-23

Keywords: profitability, water productivity, Supplemental Irrigation, agronomic management, sale return, water cost,

Abstract :

The purpose of this study was to estimate cost, gross income and net benefit of different treatments in rainfed wheat production, also determining of cost ratio and sale return, selecting of the best agronomic management and determine of cost price of water irrigation. Treatments were including two agronomic managements traditional (tillage without disk and plat, planting with hand) and advanced managements (tillage with disk and plat, planting with seeder), with different levels of single irrigation (rainfed, single irrigation at planting time and single irrigation at spring time). Field experiments carried out by sample farmers on rainfed wheat at Honam selected site in Aleshtar region of Lorestan province) during two years (2008 and 2010). Data were analyzed by Partial Budgeting Technique (PBT) and economic engineering methods (formulation of a uniform series). Net benefit in advanced management under rainfed, single irrigation at planting time and spring time were estimated 30.6%, 103% and 76.5% more than traditional management. Advanced management had more effectiveness. In this management, Sale return was estimated 74%. The Cost Prices of irrigation water were estimated 213 and 338.1 Rials per cubic meters with discount rates 15% and 25%, respectively. Finally, at Honam site, recommended management is including: The first, advanced management until planting single irrigation, the second, advanced management until spring single irrigation. font-family:"B Lotus";color:black'>دیم، تک‌آبیاری پاییزه و تک‌آبیاری بهاره به ترتیب 6/30، 103 و 5/76% بیشتر از حالت مدیریت مرسوم محاسبه شده که نشان‌دهنده اثربخشی کاربرد مدیریت برتر زراعی به جای مدیریت مرسوم در منطقه است. در این مدیریت زراعی و تک‌آبیاری به ازای یک ریال فروش، سود حاصله 74% محاسبه شد. با استفاده از فرمول‌های سری یکنواخت، ارزش کنونی هزینه یکنواخت سالانه سرمایه‌گذاری در آب آبیاری با نرخ تنزیل 15 و 25% به ترتیب 5/42 و 5/67 میلیارد ریال برآورد شد. هزینه هر متر مکعب آب آبیاری در منطقه با نرخ ‌‌تنزیل 15 و 25% به ترتیب 213 و 338 ریال محاسبه گردید. بنابراین تحت مدیریت برتر زراعی، تک‌آبیاری در زمان کاشت به عنوان اولویت اول و تک‌آبیاری بهاره به عنوان اولویت دوم قابل توصیه است.