Volume 25 (2023)
Volume 24 (2022)
Volume 23 (2021)
Volume 22 (2020)
Volume 21 (2019)
Volume 20 (2018)
Volume 19 (2017)
Volume 18 (2016)
Volume 17 (2015)
Volume 16 (2014)
Volume 15 (2013)
Volume 14 (2012)
Volume 13 (2011)
Volume 12 (2010)
Volume 11 (2009)
Determining Yield Gap and Potential for Improved Production of Irrigated Canola in Iran

samaneh rahban; Benjamin Torabi; afshin soltani; Ebrahim Zeinali

Volume 24, Issue 2 , June 2022, , Pages 393-406

https://doi.org/10.22059/jci.2021.319201.2520

Abstract
  The present study tries to estimate the yield gap of irrigated canola in Iran as the first step for planning sustainable improvement of production. It has been performed in the modeling laboratory of Gorgan University of Agricultural Sciences and Natural Resources in 2017-2019. The protocol provided ...  Read More

Investigation of the effective factors on yield gap of rice in Mazandaran province

Vajiheh Amini Mandi; Ali Nakhzari Moghaddam; ali Rahemi karizaki; Masoumeh Naeemi

Volume 24, Issue 1 , April 2022, , Pages 205-217

https://doi.org/10.22059/jci.2022.320259.2527

Abstract
  This study is conducted to investigate the influential factors on rice yield gap in the Joibar Region, located in Mazandaran Province, by means of two methods of boundary line analysis and comparative performance analysis, in the cropping years of 2017-18 and 2018-19. It is carried out through fieldwork ...  Read More

The amount and How to distribute of chickpea and lentil yield gap in Iran

raheleh arabameri; afshin soltani; Ebrahim Zeinali; benyanen torabi

Volume 23, Issue 2 , June 2021, , Pages 221-234

https://doi.org/10.22059/jci.2021.294686.2323

Abstract
  Yield gap analysis is a quantitative estimate of possible increase of the capacity to provide food for a specified area. It is an important component for designing strategies to supply food on a scale of regional, national, and global level. In this regard a study has been conducted to determine the ...  Read More

Documentation of production process and determination of limiting factors of wheat yield by CPA method in Kalaleh County

Mohammad Sharif Nobatiany; ali Rahemi karizaki; Abbas Biabani; ali mansouri rad

Volume 22, Issue 3 , September 2020, , Pages 361-372

https://doi.org/10.22059/jci.2020.284310.2237

Abstract
  This study was conducted to evaluate the factors limiting wheat yield in Kalaleh County using the Comparative Performance Analysis (CPA) method in 2015-16. Collection of the required information was done by fieldwork, and personal interviews with farmers. To this aim, 60 wheat fields in dry land areas ...  Read More

Documenting the process of rice production and gap yield associated with crop management in rice production (case study: Mazandaran province, Babol region)

Seyfollah Halalkhor; Salman Dastan; Afshin Soltani; Hossein Ajam Norouzi

Volume 20, Issue 2 , August 2018, , Pages 397-414

https://doi.org/10.22059/jci.2018.237805.1795

Abstract
  Documentation process in agricultural production includes providing all information and activities that show the production route of one crop from providing stage of seed laying to harvest. For this purpose, in this research all finished managing operation from providing stage of seed preparation to ...  Read More

Zoning Golestan Province in terms of the ability and the wheat production gap using a simulation model (SSM)

Hamid Ahmadi Alipour; afshin soltani; hossein kazemi; Alireza Nehbandani

Volume 20, Issue 1 , June 2018, , Pages 129-144

https://doi.org/10.22059/jci.2018.237053.1784

Abstract
  Wheat (Triticum aestivum L.) as one of the most important agronomic crops has a special status in Iran. Reducing the yield gap is one of the ways to raise the production. In order to, the production rate and the wheat yield gap in Golestan province were analyzed by using a simple simulation model SSM– ...  Read More

Determination of the optimum managements ranges in order to increasing wheat yield in Golestan province

Amir Hajjarpoor; Habibolah Kashiri

Volume 19, Issue 3 , February 2018, , Pages 577-590

https://doi.org/10.22059/jci.2017.60463

Abstract
  In this study, collecting of management information from about 700 wheat farms in Golestan province was conducted during two growing seasons of 2013-2014 and 2014-2015. In each of region, potential yields, the optimum crop management and simultaneously the percentage of wheat farms out of the optimal ...  Read More