[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
Main Menu
Home::
Journal Information::
Articles archive::
For Authors::
For Reviewers::
Registration::
Contact us::
Site Facilities::
::
Search in website

Advanced Search
..
Receive site information
Enter your Email in the following box to receive the site news and information.
..
The 9th International Energy Conference
..
:: Volume 18, Issue 1 (4-2015) ::
IJE 2015, 18(1): 0-0 Back to browse issues page
An Investigation and Determination of Energy Consumption for Two Methods of Onion Cropping
Abstract:   (4252 Views)

This study was carried out to investigate into the amount of energy consumption for two methods of onion cropping consisting in seed planting or seedling transplantation. Plans to reduce the level of energy consumption and cost are proposed too. To determine the input and output energy, a questionnaire was designed in which the types and amounts of applied inputs at different stages of crop production were included. The results indicated that output/input energy ratio for seed planting and seedling transplanting were 0.82 and 0.95 respectively. Furthermore, for the foregoing methods, net energy gain was -62358.8 and -14333.2 MJ/ha and energy productivity was 0.24 and 0.29 kg/MJ respectively. Calculation of energy intensity revealed that for producing of one kilogram onion, it was required to consume 4.13 and 3.4 MJ energy for seed planting and seedling transplanting respectively method, respectively, indication a 21.5% energy saving when the latter method was used. Deploying modern irrigation systems, appropriated planting and harvesting machines, following recommendations from agricultural expert on fertilizers, pesticides and seeding rates would substantially reduce energy consumption and cost of onion production.

Keywords: Onion, Input consumption, Yield, Energy Index
Full-Text [PDF 236 kb]   (1977 Downloads)    
Type of Study: Research | Subject: Energy Management, Conservation and Rational Use of Energy
Received: 2014/07/13 | Accepted: 2014/09/16 | Published: 2015/07/11
Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

An Investigation and Determination of Energy Consumption for Two Methods of Onion Cropping. IJE 2015; 18 (1)
URL: http://necjournals.ir/article-1-680-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 18, Issue 1 (4-2015) Back to browse issues page
نشریه انرژی ایران Iranian Journal of Energy
Persian site map - English site map - Created in 0.05 seconds with 39 queries by YEKTAWEB 4645